{"id":375,"date":"2024-10-23T19:07:21","date_gmt":"2024-10-23T10:07:21","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=375"},"modified":"2025-03-24T08:53:18","modified_gmt":"2025-03-23T23:53:18","slug":"%e3%80%90java%e5%85%a5%e9%96%80%e3%80%91protected%e3%82%ad%e3%83%bc%e3%83%af%e3%83%bc%e3%83%89%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%a8%e6%b4%bb%e7%94%a8%e4%be%8b5%e9%81%b8-%e3%80%9c%e3%82%b3","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=375","title":{"rendered":"\u3010Java\u5165\u9580\u3011protected\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u3044\u65b9\u3068\u6d3b\u7528\u4f8b5\u9078 \u301c\u30b3\u30fc\u30c9\u8a2d\u8a08\u529b\u304c\u5287\u7684\u306b\u5411\u4e0a\u3059\u308b\u79d8\u8a23\u301c"},"content":{"rendered":"<div id=\"sgb-css-id-1\">\n<div class=\"toc\"><br \/>\n<b>Warning<\/b>:  Undefined array key \"is_admin\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>116<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_category_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>121<\/b><br \/>\n<br \/>\n<b>Warning<\/b>:  Undefined array key \"is_top\" in <b>\/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/sango-theme\/library\/gutenberg\/dist\/classes\/Toc.php<\/b> on line <b>128<\/b><br \/>\n    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"\u76ee\u6b21\">\n      <p class=\"toc_title\">\u76ee\u6b21 <\/p>\n      <ul class=\"toc_list\">  <li class=\"first\">    <a href=\"#i-0\">1. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u306f\uff1f\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">1.1 Java\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u57fa\u672c<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">1.2 protected\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u7279\u5fb4\u3068\u5f79\u5272<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">2. protected\u3068private\u3001public\u306e\u9055\u3044\u3092\u5fb9\u5e95\u6bd4\u8f03<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">2.1 \u30a2\u30af\u30bb\u30b9\u7bc4\u56f2\u306e\u9055\u3044\u3092\u56f3\u89e3\u3067\u7406\u89e3<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">2.2 \u5404\u4fee\u98fe\u5b50\u306e\u4f7f\u7528\u30b7\u30fc\u30f3\u3068\u6ce8\u610f\u70b9<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">3. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c83\u3064<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-10\">3.1 \u7d99\u627f\u3092\u6d3b\u7528\u3057\u305f\u67d4\u8edf\u306a\u8a2d\u8a08\u304c\u53ef\u80fd\u306b<\/a>      <\/li>      <li>        <a href=\"#i-11\">3.2 \u30ab\u30d7\u30bb\u30eb\u5316\u306b\u3088\u308b\u30c7\u30fc\u30bf\u4fdd\u8b77\u306e\u5f37\u5316<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-12\">3.3 \u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u3067\u306e\u52b9\u7387\u7684\u306a\u5354\u8abf\u4f5c\u696d<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-13\">4. \u5b9f\u8df5\u7684\u306aprotected\u6d3b\u7528\u4f8b5\u9078<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-14\">4.1 \u57fa\u5e95\u30af\u30e9\u30b9\u3067\u306eprotected\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9<\/a>      <\/li>      <li>        <a href=\"#i-15\">4.2 \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/a>      <\/li>      <li>        <a href=\"#i-16\">4.3 \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u958b\u767a\u3067\u306eprotected\u6d3b\u7528<\/a>      <\/li>      <li>        <a href=\"#i-17\">4.4 \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u524d\u63d0\u306e\u30e1\u30bd\u30c3\u30c9\u8a2d\u8a08<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-18\">4.5 \u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u3067\u306e\u5171\u6709\u30c7\u30fc\u30bf\u306e\u7ba1\u7406<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-19\">5. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-20\">5.1 \u904e\u5ea6\u306a\u4f7f\u7528\u3092\u907f\u3051\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd<\/a>      <\/li>      <li>        <a href=\"#i-21\">5.2 \u9069\u5207\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3067\u610f\u56f3\u3092\u660e\u78ba\u306b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-22\">5.3 unit test\u3067\u306eprotected\u30e1\u30f3\u30d0\u30fc\u306e\u6271\u3044\u65b9<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-23\">6. protected\u30de\u30b9\u30bf\u30fc\u3078\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\uff1a\u95a2\u9023\u6982\u5ff5\u3068\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-24\">6.1 \u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b<\/a>      <\/li>      <li>        <a href=\"#i-25\">6.2 \u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068protected\u306e\u95a2\u4fc2\u6027<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-26\">6.3 \u304a\u3059\u3059\u3081\u306e\u66f8\u7c4d\u3068\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u6750\u6599<\/a>      <\/li>    <\/ul>  <\/li><\/ul>\n      <a href=\"#\" class=\"sgb-toc-button js-toc-button\" rel=\"nofollow\" data-open-dialog=\"true\"><i class=\"fa fa-list\"><\/i><span class=\"sgb-toc-button__text\">\u76ee\u6b21\u3078<\/span><\/a>\n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">1. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u306f\uff1f\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-2\">\n<p>Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3076\u4e0a\u3067\u3001\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u7406\u89e3\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u305d\u306e\u4e2d\u3067\u3082<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u521d\u5fc3\u8005\u306b\u3068\u3063\u3066\u3084\u3084\u7406\u89e3\u304c\u96e3\u3057\u3044\u6982\u5ff5\u306e\u4e00\u3064\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u57fa\u672c\u3068\u5f79\u5272\u306b\u3064\u3044\u3066\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-3\">\n<h3 class=\"wp-block-heading\" id=\"i-1\">1.1 Java\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u57fa\u672c<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-4\">\n<p>\u307e\u305a\u3001Java\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u304a\u3055\u3089\u3044\u3057\u307e\u3057\u3087\u3046\u3002\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306f\u3001\u30af\u30e9\u30b9\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u5909\u6570\u306a\u3069\u306e\u8981\u7d20\u306b\u5bfe\u3059\u308b\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"id-e16b76c6-72e3-4c54-9379-12134d000650\"><div id=\"sgb-css-id-5\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50<\/th><th>\u540c\u3058\u30af\u30e9\u30b9<\/th><th>\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8<\/th><th>\u30b5\u30d6\u30af\u30e9\u30b9<\/th><th>\u4ed6\u306e\u30d1\u30c3\u30b1\u30fc\u30b8<\/th><\/tr><\/thead><tbody><tr><td>public<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><\/tr><tr><td>protected<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u00d7<\/td><\/tr><tr><td>(\u30c7\u30d5\u30a9\u30eb\u30c8)<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u00d7<\/td><td>\u00d7<\/td><\/tr><tr><td>private<\/td><td>\u25cb<\/td><td>\u00d7<\/td><td>\u00d7<\/td><td>\u00d7<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-6\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">1.2 protected\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u7279\u5fb4\u3068\u5f79\u5272<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\"><code>protected<\/code> \u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u7279\u5fb4<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-8\">\n<li>\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-9\">\n<li>\u30b5\u30d6\u30af\u30e9\u30b9\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\uff08\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u7570\u306a\u308b\u5834\u5408\u3082\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<li>\u7d99\u627f\u3092\u8003\u616e\u3057\u305f\u8a2d\u8a08\u306b\u6709\u7528<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\n<li>\u30ab\u30d7\u30bb\u30eb\u5316\u3068\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-12\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u57fa\u672c\u7684\u306a\u4f7f\u7528\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class BaseClass {\n    protected void someMethod() {\n        \/\/ \u30e1\u30bd\u30c3\u30c9\u306e\u5185\u5bb9\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-13\">\n<p>\u3053\u306e<code>someMethod()<\/code>\u306f\u3001\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306e\u30af\u30e9\u30b9\u3068\u30b5\u30d6\u30af\u30e9\u30b9\u304b\u3089\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4e3b\u306a\u5f79\u5272\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u958b\u767a\u30b7\u30fc\u30f3\u3067\u767a\u63ee\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\"><code>protected <\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u304c\u5229\u7528\u3055\u308c\u308b\u958b\u767a\u30b7\u30fc\u30f3<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-15\">\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u306e\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9\uff1a\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u305f\u30e1\u30bd\u30c3\u30c9\u306b\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-16\">\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u958b\u767a\u3067\u306e\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u306e\u63d0\u4f9b\uff1a\u30e6\u30fc\u30b6\u30fc\u304c\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u308b\u90e8\u5206\u3092<code>protected<\/code>\u3067\u5b9a\u7fa9\u3059\u308b\u3002<\/li>\n<\/div>\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\uff1a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9aa8\u683c\u3092\u5b9a\u7fa9\u3057\u3001\u4e00\u90e8\u306e\u51e6\u7406\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u59d4\u306d\u308b\u969b\u306b\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-17\">\n<p>\u305f\u3060\u3057\u3001\u521d\u5fc3\u8005\u304c\u3088\u304f\u9665\u308b\u8aa4\u89e3\u3082\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--sgb-main-color);color:#FFF\" class=\"sgb-box-simple__title\"><code>protected <\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u8aa4\u89e3<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--sgb-main-color);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-18\">\n<li>\u8aa4\u89e31\uff1a<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306f\u5e38\u306b\u5b89\u5168\u3067\u3042\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-19\">\n<li>\u8aa4\u89e32\uff1a<code>protected<\/code>\u306f<code>public<\/code>\u306e\u4ee3\u66ff\u3068\u3057\u3066\u4f7f\u3048\u308b<\/li>\n<\/div>\n\n\n<li>\u8aa4\u89e33\uff1a<code>protected<\/code>\u306f\u30d1\u30c3\u30b1\u30fc\u30b8\u5916\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5b8c\u5168\u306b\u9632\u3050<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-20\">\n<p>\u3053\u308c\u3089\u306e\u8aa4\u89e3\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-23\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u8aa4\u89e3\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u6ce8\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-21\">\n<li>\u904e\u5ea6\u306a\u4f7f\u7528\u306f\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u5f31\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u914d\u616e\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u3082\u9069\u5207\u306b\u7ba1\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/li>\n<\/div>\n\n\n<li>\u7d99\u627f\u968e\u5c64\u304c\u6df1\u304f\u306a\u308b\u3068\u3001<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u7ba1\u7406\u304c\u96e3\u3057\u304f\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-24\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3042\u308b\u7d99\u627f\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u3068\u4ed6\u306e\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3068\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u3001\u3088\u308a\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-25\">\n<h2 class=\"wp-block-heading\" id=\"i-3\">2. protected\u3068private\u3001public\u306e\u9055\u3044\u3092\u5fb9\u5e95\u6bd4\u8f03<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-26\">\n<p>Java\u306b\u304a\u3051\u308b\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u9078\u629e\u306f\u3001\u30b3\u30fc\u30c9\u306e\u8a2d\u8a08\u3068\u54c1\u8cea\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u3053\u306e\u7bc0\u3067\u306f\u3001<code>protected<\/code>\u3001<code>private<\/code>\u3001<code>public<\/code>\u306e\u9055\u3044\u3092\u8a73\u3057\u304f\u6bd4\u8f03\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3068\u9069\u5207\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-27\">\n<h3 class=\"wp-block-heading\" id=\"i-4\">2.1 \u30a2\u30af\u30bb\u30b9\u7bc4\u56f2\u306e\u9055\u3044\u3092\u56f3\u89e3\u3067\u7406\u89e3<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-28\">\n<p>\u307e\u305a\u3001\u5404\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u30a2\u30af\u30bb\u30b9\u7bc4\u56f2\u306e\u9055\u3044\u3092\u8996\u899a\u7684\u306b\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">graph TD\n    A[\u30af\u30e9\u30b9\u5185] --&gt;|private| B((private))\n    A --&gt;|protected| C((protected))\n    A --&gt;|public| D((public))\n    E[\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8] --&gt;|protected| C\n    E --&gt;|public| D\n    F[\u30b5\u30d6\u30af\u30e9\u30b9] --&gt;|protected| C\n    F --&gt;|public| D\n    G[\u4ed6\u306e\u30d1\u30c3\u30b1\u30fc\u30b8] --&gt;|public| D<\/pre>\n\n\n<div id=\"sgb-css-id-29\">\n<p>\u3053\u306e\u56f3\u304b\u3089\u3001<code>public<\/code>\u304c\u6700\u3082\u5e83\u3044\u30a2\u30af\u30bb\u30b9\u7bc4\u56f2\u3092\u6301\u3061\u3001<code>private<\/code>\u304c\u6700\u3082\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<code>protected<\/code>\u306f\u305d\u306e\u4e2d\u9593\u306b\u4f4d\u7f6e\u3057\u3001\u7d99\u627f\u95a2\u4fc2\u3092\u8003\u616e\u3057\u305f\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-30\">\n<p>\u4ee5\u4e0b\u306e\u8868\u3067\u3001\u5404\u4fee\u98fe\u5b50\u306e\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u7bc4\u56f2\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"id-eda4d839-35c7-4856-8838-1080f080d74b\"><div id=\"sgb-css-id-31\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u4fee\u98fe\u5b50<\/th><th>\u540c\u3058\u30af\u30e9\u30b9<\/th><th>\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8<\/th><th>\u30b5\u30d6\u30af\u30e9\u30b9<\/th><th>\u4ed6\u306e\u30d1\u30c3\u30b1\u30fc\u30b8<\/th><\/tr><\/thead><tbody><tr><td>public<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><\/tr><tr><td>protected<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u00d7<\/td><\/tr><tr><td>\u30c7\u30d5\u30a9\u30eb\u30c8<\/td><td>\u25cb<\/td><td>\u25cb<\/td><td>\u00d7<\/td><td>\u00d7<\/td><\/tr><tr><td>private<\/td><td>\u25cb<\/td><td>\u00d7<\/td><td>\u00d7<\/td><td>\u00d7<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">2.2 \u5404\u4fee\u98fe\u5b50\u306e\u4f7f\u7528\u30b7\u30fc\u30f3\u3068\u6ce8\u610f\u70b9<\/h3>\n\n\n<div id=\"sgb-css-id-32\">\n<p>\u5404\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306b\u306f\u9069\u5207\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u305d\u308c\u305e\u308c\u306e\u4ee3\u8868\u7684\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u3068\u6ce8\u610f\u70b9\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-33\">\n<h4 class=\"wp-block-heading\" id=\"i-6\">public<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4f7f\u7528\u30b7\u30fc\u30f3\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-34\">\n<li>API\u306e\u516c\u958b\u30e1\u30bd\u30c3\u30c9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-35\">\n<li>\u5b9a\u6570<\/li>\n<\/div>\n\n\n<li>\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-38\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-37\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u8003\u616e\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u904e\u5ea6\u306e\u4f7f\u7528\u306f\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u7834\u58ca\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-39\">\n<h4 class=\"wp-block-heading\" id=\"i-7\">protected<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-42\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4f7f\u7528\u30b7\u30fc\u30f3\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-40\">\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u524d\u63d0\u306e\u30e1\u30bd\u30c3\u30c9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-41\">\n<li>\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u4f7f\u7528\u3059\u308b\u30d5\u30a3\u30fc\u30eb\u30c9<\/li>\n<\/div>\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-44\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-43\">\n<li>\u7d99\u627f\u968e\u5c64\u304c\u6df1\u304f\u306a\u308b\u3068\u7ba1\u7406\u304c\u56f0\u96e3\u306b\u306a\u308b<\/li>\n<\/div>\n\n\n<li>\u610f\u56f3\u3057\u306a\u3044\u30a2\u30af\u30bb\u30b9\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-45\">\n<h4 class=\"wp-block-heading\" id=\"i-8\">private<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-47\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u4f7f\u7528\u30b7\u30fc\u30f3\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-46\">\n<li>\u30af\u30e9\u30b9\u5185\u90e8\u3067\u306e\u307f\u4f7f\u7528\u3059\u308b\u30e1\u30bd\u30c3\u30c9<\/li>\n<\/div>\n\n\n<li>\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-49\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-48\">\n<li>\u30c6\u30b9\u30c8\u304c\u96e3\u3057\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/li>\n<\/div>\n\n\n<li>\u7d99\u627f\u6642\u306e\u67d4\u8edf\u6027\u304c\u5236\u9650\u3055\u308c\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-50\">\n<p>\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3092\u9078\u629e\u3059\u308b\u305f\u3081\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-54\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u9078\u629e\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-51\">\n<li>\u6700\u5c0f\u9650\u306e\u516c\u958b\u7bc4\u56f2\u3092\u9078\u629e\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<li>\u7d99\u627f\u3092\u8003\u616e\u3059\u308b\u5834\u5408\u306f<code>protected<\/code>\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-53\">\n<li>\u30af\u30e9\u30b9\u5185\u90e8\u3067\u306e\u307f\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f<code>private<\/code>\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u516c\u958bAPI\u306e\u5834\u5408\u306f<code>public<\/code>\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-55\">\n<p>\u3053\u308c\u3089\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30bb\u30ad\u30e5\u30a2\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-56\">\n<p>\u4ee5\u4e0b\u306b\u3001\u5404\u4fee\u98fe\u5b50\u306e\u4f7f\u7528\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<br><\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class AccessModifierExample {\n    public void publicMethod() {\n        System.out.println(\"This is a public method\");\n    }\n\n    protected void protectedMethod() {\n        System.out.println(\"This is a protected method\");\n    }\n\n    private void privateMethod() {\n        System.out.println(\"This is a private method\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-57\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u5404\u30e1\u30bd\u30c3\u30c9\u306b\u7570\u306a\u308b\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3092\u9069\u7528\u3057\u3066\u3044\u307e\u3059\u3002<code>publicMethod()<\/code> \u306f\u3069\u3053\u304b\u3089\u3067\u3082\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3001<code>protectedMethod()<\/code> \u306f\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30b5\u30d6\u30af\u30e9\u30b9\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3001<code>privateMethod()<\/code> \u306f\u540c\u3058\u30af\u30e9\u30b9\u5185\u3067\u306e\u307f\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3059\u3002 \u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u8aa4\u3063\u305f\u4f7f\u7528\u4f8b\u3068\u305d\u306e\u554f\u984c\u70b9\u3082\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-58\">\n<p>1. \u904e\u5ea6\u306a <code>public<\/code> \u306e\u4f7f\u7528 <\/p>\n<\/div>\n\n<div id=\"sgb-css-id-59\">\n<p>    \u554f\u984c\u70b9\uff1a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3068\u4fdd\u5b88\u6027\u306e\u4f4e\u4e0b<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class OverExposedClass {\n    public String sensitiveData; \/\/ \u672c\u6765\u306fprivate\u306b\u3059\u3079\u304d\n    public void internalOperation() { } \/\/ \u30af\u30e9\u30b9\u5185\u90e8\u3067\u306e\u307f\u4f7f\u7528\u3059\u3079\u304d\u30e1\u30bd\u30c3\u30c9\n}<\/pre>\n\n\n<div id=\"sgb-css-id-60\">\n<p>2. <code>protected<\/code>\u306e\u6feb\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\n<p>    \u554f\u984c\u70b9\uff1a\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u5f31\u4f53\u5316<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class LooselyEncapsulatedClass {\n    protected int counter; \/\/ \u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u3042\u308b\n    protected void incrementCounter() { counter++; } \/\/ \u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\n}<\/pre>\n\n\n<div id=\"sgb-css-id-62\">\n<p>3. \u3059\u3079\u3066\u3092<code>private<\/code>\u306b\u3059\u308b<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-63\">\n<p>    \u554f\u984c\u70b9\uff1a\u62e1\u5f35\u6027\u306e\u5236\u9650<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class OverlyRestrictedClass {\n    private void usefulMethod() { } \/\/ \u30b5\u30d6\u30af\u30e9\u30b9\u3067\u518d\u5229\u7528\u3067\u304d\u306a\u3044\n    private int importantValue; \/\/ getter\/setter\u306a\u3057\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\n}<\/pre>\n\n\n<div id=\"sgb-css-id-64\">\n<p>\u3053\u308c\u3089\u306e\u8aa4\u3063\u305f\u4f7f\u7528\u4f8b\u3092\u907f\u3051\u3001\u9069\u5207\u306a\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u67d4\u8edf\u6027\u306e\u3042\u308b\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-65\">\n<p>\u307e\u3068\u3081\u308b\u3068\u3001<code>public<\/code>\u3001<code>protected<\/code>\u3001<code>private<\/code>\u306e\u9078\u629e\u306f\u3001\u30af\u30e9\u30b9\u306e\u8a2d\u8a08\u3068\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<code>public<\/code>\u306f\u5e83\u7bc4\u56f2\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3057\u3001<code>private<\/code>\u306f\u6700\u3082\u5236\u9650\u7684\u3067\u3001<code>protected<\/code>\u306f\u305d\u306e\u4e2d\u9593\u306b\u4f4d\u7f6e\u3057\u307e\u3059\u3002\u9069\u5207\u306a\u4fee\u98fe\u5b50\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u3001\u62e1\u5f35\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f\u30b3\u30fc\u30c9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306e\u5177\u4f53\u7684\u306a\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-66\">\n<h2 class=\"wp-block-heading\" id=\"i-9\">3. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3046\u30e1\u30ea\u30c3\u30c83\u3064<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-67\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u67d4\u8edf\u6027\u3001\u5b89\u5168\u6027\u3001\u305d\u3057\u3066\u52b9\u7387\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u30463\u3064\u306e\u4e3b\u8981\u306a\u30e1\u30ea\u30c3\u30c8\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-68\">\n<h3 class=\"wp-block-heading\" id=\"i-10\">3.1 \u7d99\u627f\u3092\u6d3b\u7528\u3057\u305f\u67d4\u8edf\u306a\u8a2d\u8a08\u304c\u53ef\u80fd\u306b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-69\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306e1\u3064\u306f\u3001\u7d99\u627f\u3092\u6d3b\u7528\u3057\u305f\u67d4\u8edf\u306a\u8a2d\u8a08\u3092\u53ef\u80fd\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">abstract class Shape {\n    protected abstract void draw();\n\n    protected void displayArea() {\n        System.out.println(\"Area: \" + calculateArea());\n    }\n\n    protected abstract double calculateArea();\n}\n\nclass Circle extends Shape {\n    private double radius;\n\n    public Circle(double radius) {\n        this.radius = radius;\n    }\n\n    @Override\n    protected void draw() {\n        System.out.println(\"Drawing a circle\");\n    }\n\n    @Override\n    protected double calculateArea() {\n        return Math.PI * radius * radius;\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-70\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>Shape<\/code>\u30af\u30e9\u30b9\u3067<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-71\">\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u3067\u5171\u901a\u306e\u632f\u308b\u821e\u3044\u3092\u5b9a\u7fa9\u3057\u3064\u3064\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-72\">\n<li>\u30b5\u30d6\u30af\u30e9\u30b9\uff08\u3053\u306e\u5834\u5408\u306f<code>Circle<\/code>\uff09\u3067\u3001\u3053\u308c\u3089\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u81ea\u7531\u306b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-73\">\n<li>\u5916\u90e8\u304b\u3089\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u306f\u5236\u9650\u3057\u3064\u3064\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u62e1\u5f35\u6027\u3092\u78ba\u4fdd\u3067\u304d\u308b\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-74\">\n<p>\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001\u904e\u5ea6\u306b<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u7d99\u627f\u968e\u5c64\u304c\u8907\u96d1\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u62bd\u8c61\u5316\u30ec\u30d9\u30eb\u3092\u4fdd\u3064\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-75\">\n<h3 class=\"wp-block-heading\" id=\"i-11\">3.2 \u30ab\u30d7\u30bb\u30eb\u5316\u306b\u3088\u308b\u30c7\u30fc\u30bf\u4fdd\u8b77\u306e\u5f37\u5316<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-76\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u6982\u5ff5\u3092\u62e1\u5f35\u3057\u3001\u3088\u308a\u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u4fdd\u8b77\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class BankAccount {\n    protected double balance;\n\n    public void deposit(double amount) {\n        if (amount &gt; 0) {\n            balance += amount;\n        }\n    }\n\n    protected void withdraw(double amount) {\n        if (amount &gt; 0 &amp;&amp; balance &gt;= amount) {\n            balance -= amount;\n        }\n    }\n}\n\nclass SavingsAccount extends BankAccount {\n    private double interestRate;\n\n    public void applyInterest() {\n        balance += balance * interestRate;\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-77\">\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u4f8b\u304b\u3089\u5206\u304b\u308b\u30e1\u30ea\u30c3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-78\">\n<li><code>balance<\/code>\u5909\u6570\u3092<code>protected<\/code>\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30d6\u30af\u30e9\u30b9\uff08<code>SavingsAccount<\/code>\uff09\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3059\u304c\u3001\u5916\u90e8\u304b\u3089\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u306f\u5236\u9650\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-79\">\n<li><code>withdraw<\/code>\u30e1\u30bd\u30c3\u30c9\u3092<code>protected<\/code>\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u62e1\u5f35\u3084\u5236\u5fa1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-80\">\n<p>\u305f\u3060\u3057\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u4e0d\u9069\u5207\u306a\u64cd\u4f5c\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u660e\u78ba\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-81\">\n<h3 class=\"wp-block-heading\" id=\"i-12\">3.3 \u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u3067\u306e\u52b9\u7387\u7684\u306a\u5354\u8abf\u4f5c\u696d<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-82\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306e\u30af\u30e9\u30b9\u9593\u3067\u67d4\u8edf\u306a\u30a2\u30af\u30bb\u30b9\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ File: Helper.java\npackage com.example.util;\n\nclass Helper {\n    protected void helperMethod() {\n        \/\/ \u30d8\u30eb\u30d1\u30fc\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\n    }\n}\n\n\/\/ File: MainClass.java\npackage com.example.util;\n\npublic class MainClass {\n    private Helper helper = new Helper();\n    \n    public void doSomething() {\n        helper.helperMethod(); \/\/ \u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306a\u306e\u3067\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-83\">\n<p>\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u5229\u70b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-86\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u5229\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-84\">\n<li>\u95a2\u9023\u3059\u308b\u30af\u30e9\u30b9\u7fa4\u3067\u52b9\u7387\u7684\u306b\u60c5\u5831\u3092\u5171\u6709\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-85\">\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u90e8\u306e\u5b9f\u88c5\u8a73\u7d30\u3092\u96a0\u853d\u3057\u3064\u3064\u3001\u5fc5\u8981\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u305f\u30b3\u30fc\u30c9\u8a2d\u8a08\u3092\u4fc3\u9032\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-87\">\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u6700\u5927\u9650\u306b\u6d3b\u304b\u3059\u306b\u306f\u3001\u9069\u5207\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u8a2d\u8a08\u304c\u91cd\u8981\u3067\u3059\u3002\u95a2\u9023\u3059\u308b\u6a5f\u80fd\u3054\u3068\u306b\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5206\u5272\u3057\u3001\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<p>\u3053\u308c\u3089\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u5b9f\u969b\u306e\u958b\u767a\u30b7\u30fc\u30f3\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6d3b\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-89\">\n<p>1.\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u958b\u767a\u3067\u306e\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u306e\u63d0\u4f9b<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-90\">\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6838\u3068\u306a\u308b\u30af\u30e9\u30b9\u3067<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u308b\u30dd\u30a4\u30f3\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-91\">\n<p>2.\u30e9\u30a4\u30d6\u30e9\u30ea\u8a2d\u8a08\u3067\u306eAPI\u516c\u958b\u30ec\u30d9\u30eb\u306e\u5236\u5fa1<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-92\">\n<li>\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u5185\u90e8\u30af\u30e9\u30b9\u3084\u6a5f\u80fd\u3092<code>protected<\/code>\u3067\u5b9a\u7fa9\u3057\u3001\u5c06\u6765\u7684\u306a\u62e1\u5f35\u6027\u3092\u78ba\u4fdd\u3057\u3064\u3064\u3001\u73fe\u5728\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u516c\u958b\u3057\u305f\u304f\u306a\u3044\u6a5f\u80fd\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-93\">\n<p>3.\u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u9593\u9023\u643a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-94\">\n<li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5404\u30e2\u30b8\u30e5\u30fc\u30eb\u3067<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u9593\u306e\u7d50\u5408\u5ea6\u3092\u4f4e\u304f\u4fdd\u3061\u3064\u3064\u3001\u5fc5\u8981\u306a\u9023\u643a\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-95\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u3001\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\"><code>protected<\/code> \u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u969b\u306e\u6ce8\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-96\">\n<li>\u7d99\u627f\u968e\u5c64\u304c\u6df1\u304f\u306a\u308a\u3059\u304e\u306a\u3044\u3088\u3046\u8a2d\u8a08\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-97\">\n<li><code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u4f7f\u7528\u7406\u7531\u3092\u660e\u78ba\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u4f5c\u6210\u6642\u306b<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u3078\u306e\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3092\u8003\u616e\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-98\">\n<p>\u4ee5\u4e0a\u306e\u3088\u3046\u306b\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u7d99\u627f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u3001\u305d\u3057\u3066\u30d1\u30c3\u30b1\u30fc\u30b8\u30ec\u30d9\u30eb\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u4f8b\u30925\u3064\u7d39\u4ecb\u3057\u3001\u3055\u3089\u306b\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-99\">\n<h2 class=\"wp-block-heading\" id=\"i-13\">4. \u5b9f\u8df5\u7684\u306aprotected\u6d3b\u7528\u4f8b5\u9078<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-100\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u67d4\u8edf\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u4f8b\u30925\u3064\u7d39\u4ecb\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u6ce8\u610f\u70b9\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-101\">\n<h3 class=\"wp-block-heading\" id=\"i-14\">4.1 \u57fa\u5e95\u30af\u30e9\u30b9\u3067\u306eprotected\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-102\">\n<p>\u57fa\u5e95\u30af\u30e9\u30b9\u3067<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u5171\u901a\u306e\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u53ef\u80fd\u6027\u3092\u6b8b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">abstract class Animal {\n    protected void eat() {\n        System.out.println(\"Animal is eating\");\n    }\n\n    protected abstract void makeSound();\n}\n\nclass Dog extends Animal {\n    @Override\n    protected void eat() {\n        super.eat();\n        System.out.println(\"Dog is chewing bones\");\n    }\n\n    @Override\n    protected void makeSound() {\n        System.out.println(\"Dog barks: Woof!\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-104\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u30e1\u30ea\u30c3\u30c8\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-103\">\n<li>\u5171\u901a\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u7279\u6b8a\u5316\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u304c\u9ad8\u307e\u308a\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-106\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-105\">\n<li>\u57fa\u5e95\u30af\u30e9\u30b9\u306e\u5b9f\u88c5\u306b\u4f9d\u5b58\u3057\u3059\u304e\u306a\u3044\u3088\u3046\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u969b\u306f\u3001<code>super<\/code>\u3092\u9069\u5207\u306b\u547c\u3073\u51fa\u3059\u3053\u3068\u3092\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-107\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">4.2 \u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-108\">\n<p>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9aa8\u683c\u3092\u5b9a\u7fa9\u3057\u3001\u4e00\u90e8\u306e\u51e6\u7406\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u59d4\u306d\u308b\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">abstract class DataProcessor {\n    public final void execute() {\n        openFile();\n        processData();\n        writeResult();\n        closeFile();\n    }\n\n    protected void openFile() {\n        System.out.println(\"Opening file...\");\n    }\n\n    protected abstract void processData();\n\n    protected void writeResult() {\n        System.out.println(\"Writing result...\");\n    }\n\n    protected void closeFile() {\n        System.out.println(\"Closing file...\");\n    }\n}\n\nclass CSVProcessor extends DataProcessor {\n    @Override\n    protected void processData() {\n        System.out.println(\"Processing CSV data...\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-109\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\uff1a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-110\">\n<li><code>execute()<\/code>\u30e1\u30bd\u30c3\u30c9\u304c\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9aa8\u683c\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-111\">\n<li><code>processData()<\/code>\u30e1\u30bd\u30c3\u30c9\u3092<code>protected abstract<\/code>\u3067\u5b9a\u7fa9\u3057\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u5b9f\u88c5\u3092\u5f37\u5236\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-112\">\n<li>\u305d\u306e\u4ed6\u306e<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-114\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u5229\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-113\">\n<li>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u69cb\u9020\u3092\u4fdd\u3061\u3064\u3064\u3001\u7279\u5b9a\u306e\u51e6\u7406\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u3068\u62e1\u5f35\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-116\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-115\">\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u306e\u5909\u66f4\u306f\u5f71\u97ff\u7bc4\u56f2\u304c\u5927\u304d\u3044\u305f\u3081\u3001\u614e\u91cd\u306b\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u9069\u5207\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u91cd\u8981\u3067\u3001\u5404<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u306e\u5f79\u5272\u3068\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u3092\u660e\u78ba\u306b\u8aac\u660e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<h3 class=\"wp-block-heading\" id=\"i-16\">4.3 \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u958b\u767a\u3067\u306eprotected\u6d3b\u7528<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-118\">\n<p>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u958b\u767a\u3067\u306f\u3001<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6838\u5fc3\u90e8\u5206\u3092\u4fdd\u8b77\u3057\u3064\u3064\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u308b\u90e8\u5206\u3092\u660e\u78ba\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class BaseController {\n    public final void handleRequest() {\n        beforeAction();\n        processRequest();\n        afterAction();\n    }\n\n    protected void beforeAction() {\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\uff08\u7a7a\uff09\n    }\n\n    protected abstract void processRequest();\n\n    protected void afterAction() {\n        \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\uff08\u7a7a\uff09\n    }\n}\n\npublic class UserController extends BaseController {\n    @Override\n    protected void beforeAction() {\n        System.out.println(\"Logging request...\");\n    }\n\n    @Override\n    protected void processRequest() {\n        System.out.println(\"Processing user request...\");\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-119\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\uff1a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-120\">\n<li><code>BaseController<\/code>\u30af\u30e9\u30b9\u304c\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u57fa\u672c\u69cb\u9020\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-121\">\n<li><code>beforeAction()<\/code>\u3068<code>afterAction()<\/code>\u30e1\u30bd\u30c3\u30c9\u306f<code>protected<\/code>\u3067\u5b9a\u7fa9\u3055\u308c\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u53ef\u80fd\u306b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-122\">\n<li><code>processRequest()<\/code>\u30e1\u30bd\u30c3\u30c9\u306f<code>protected abstract<\/code>\u3067\u5b9a\u7fa9\u3055\u308c\u3001\u5177\u4f53\u7684\u306a\u51e6\u7406\u3092\u30b5\u30d6\u30af\u30e9\u30b9\u306b\u59d4\u306d\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-124\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u5229\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-123\">\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u6838\u5fc3\u90e8\u5206\u3092\u4fdd\u8b77\u3057\u3064\u3064\u3001\u62e1\u5f35\u6027\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30e6\u30fc\u30b6\u30fc\u304c\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3067\u304d\u308b\u90e8\u5206\u3092\u660e\u78ba\u306b\u793a\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-126\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-125\">\n<li>API\u306e\u5b89\u5b9a\u6027\u3068\u62e1\u5f35\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u9069\u5207\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3068\u3001\u62e1\u5f35\u30dd\u30a4\u30f3\u30c8\u306e\u660e\u78ba\u306a\u8aac\u660e\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-127\">\n<h3 class=\"wp-block-heading\" id=\"i-17\">4.4 \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u524d\u63d0\u306e\u30e1\u30bd\u30c3\u30c9\u8a2d\u8a08<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-128\">\n<p>\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u60f3\u5b9a\u3057\u305f\u30e1\u30bd\u30c3\u30c9\u3092<code>protected<\/code>\u3067\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u67d4\u8edf\u306a\u5b9f\u88c5\u3092\u4fc3\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class Shape {\n    protected double calculateArea() {\n        return 0; \/\/ \u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\n    }\n\n    public final void printArea() {\n        System.out.println(\"Area: \" + calculateArea());\n    }\n}\n\npublic class Circle extends Shape {\n    private double radius;\n\n    public Circle(double radius) {\n        this.radius = radius;\n    }\n\n    @Override\n    protected double calculateArea() {\n        return Math.PI * radius * radius;\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-129\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\uff1a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-130\">\n<li><code>Shape<\/code>\u30af\u30e9\u30b9\u306e<code>calculateArea()<\/code>\u30e1\u30bd\u30c3\u30c9\u3092<code>protected<\/code>\u3067\u5b9a\u7fa9\u3057\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-131\">\n<li><code>Circle<\/code>\u30af\u30e9\u30b9\u3067<code>calculateArea()<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3001\u5177\u4f53\u7684\u306a\u8a08\u7b97\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-133\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u5229\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-132\">\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u3092\u63d0\u4f9b\u3057\u3064\u3064\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u306e\u7279\u6b8a\u5316\u3092\u4fc3\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u5171\u901a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u5404\u5f62\u72b6\u306b\u7279\u5316\u3057\u305f\u5b9f\u88c5\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-135\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-134\">\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u3059\u308b\u305f\u3081\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u5b9f\u88c5\u304c\u9069\u5207\u304b\u3069\u3046\u304b\u3001\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-136\">\n<h3 class=\"wp-block-heading\" id=\"i-18\">4.5 \u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u3067\u306e\u5171\u6709\u30c7\u30fc\u30bf\u306e\u7ba1\u7406<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-137\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u540c\u4e00\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u3067\u306e\u307f\u5171\u6709\u3057\u305f\u3044\u30c7\u30fc\u30bf\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u6027\u3092\u9ad8\u3081\u3064\u3064\u3001\u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u5171\u6709\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ File: SharedData.java\npackage com.example.util;\n\nclass SharedData {\n    protected static final String API_KEY = \"your-api-key-here\";\n    protected static int requestCount = 0;\n}\n\n\/\/ File: ApiClient.java\npackage com.example.util;\n\npublic class ApiClient {\n    public void makeRequest() {\n        System.out.println(\"Using API Key: \" + SharedData.API_KEY);\n        SharedData.requestCount++;\n        System.out.println(\"Request count: \" + SharedData.requestCount);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-138\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\uff1a<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-139\">\n<li><code>SharedData<\/code>\u30af\u30e9\u30b9\u3067<code>API_KEY<\/code>\u3068<code>requestCount<\/code>\u3092<code>protected<\/code>\u3067\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-140\">\n<li>\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306e<code>ApiClient<\/code>\u30af\u30e9\u30b9\u304b\u3089\u3053\u308c\u3089\u306e\u5171\u6709\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-142\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#009EF3;color:#FFF\" class=\"sgb-box-simple__title\">\u5229\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#009EF3;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-141\">\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u90e8\u3067\u306e\u67d4\u8edf\u306a\u30c7\u30fc\u30bf\u5171\u6709\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u6027\u3092\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u5916\u90e8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-144\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-143\">\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u8a2d\u8a08\u306e\u91cd\u8981\u6027\u304c\u5897\u3057\u3001\u9069\u5207\u306a\u5206\u5272\u3068\u7ba1\u7406\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n\n<li>\u5171\u6709\u30c7\u30fc\u30bf\u306e\u5909\u66f4\u304c\u53ca\u307c\u3059\u5f71\u97ff\u7bc4\u56f2\u3092\u614e\u91cd\u306b\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-145\">\n<p>\u3053\u308c\u3089\u306e\u5b9f\u8df5\u7684\u306a\u6d3b\u7528\u4f8b\u3092\u901a\u3058\u3066\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u304cJava\u958b\u767a\u306b\u304a\u3044\u3066\u67d4\u8edf\u6027\u3001\u62e1\u5f35\u6027\u3001\u305d\u3057\u3066\u30e2\u30b8\u30e5\u30fc\u30eb\u6027\u3092\u9ad8\u3081\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u5b9f\u969b\u306e\u958b\u767a\u30b7\u30fc\u30f3\u3067\u306f\u3001\u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u8a2d\u8a08\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3084API\u306e\u958b\u767a\u3001\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u3092\u8003\u616e\u3057\u305f\u30af\u30e9\u30b9\u8a2d\u8a08\u3001\u30d7\u30e9\u30b0\u30a4\u30f3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5b9f\u88c5\u306a\u3069\u3001\u69d8\u3005\u306a\u5834\u9762\u3067<code>protected<\/code>\u306e\u6d3b\u7528\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-146\">\n<p>\u305f\u3060\u3057\u3001<code>protected<\/code>\u3092\u4f7f\u7528\u3059\u308b\u969b\u306f\u4ee5\u4e0b\u306e\u70b9\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-150\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\"><code>protected<\/code> \u4f7f\u7528\u306e\u6ce8\u610f\u70b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-147\">\n<li><code>protected<\/code>\u306e\u4f7f\u7528\u7406\u7531\u3092\u660e\u78ba\u306b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-148\">\n<li>\u7d99\u627f\u968e\u5c64\u304c\u6df1\u304f\u306a\u308a\u3059\u304e\u306a\u3044\u3088\u3046\u6ce8\u610f\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-149\">\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u8a2d\u8a08\u3068\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064<\/li>\n<\/div>\n\n\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u304b\u3089<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9069\u5207\u306b\u7ba1\u7406\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-151\">\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001<code>protected<\/code>\u3092\u52b9\u679c\u7684\u304b\u3064\u5b89\u5168\u306b\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u6307\u91dd\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-152\">\n<h2 class=\"wp-block-heading\" id=\"i-19\">5. protected\u30ad\u30fc\u30ef\u30fc\u30c9\u4f7f\u7528\u6642\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-153\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u9069\u5207\u306a\u4f7f\u7528\u306f\u3001\u30b3\u30fc\u30c9\u306e\u67d4\u8edf\u6027\u3068\u62e1\u5f35\u6027\u3092\u9ad8\u3081\u308b\u4e00\u65b9\u3067\u3001\u4e0d\u9069\u5207\u306a\u4f7f\u7528\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3084\u4fdd\u5b88\u6027\u306e\u4f4e\u4e0b\u3092\u62db\u304f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u52b9\u679c\u7684\u304b\u3064\u5b89\u5168\u306b\u4f7f\u7528\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-154\">\n<h3 class=\"wp-block-heading\" id=\"i-20\">5.1 \u904e\u5ea6\u306a\u4f7f\u7528\u3092\u907f\u3051\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-155\">\n<p><code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u904e\u5ea6\u306a\u4f7f\u7528\u306f\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u3092\u5f31\u3081\u3001\u4e88\u671f\u305b\u306c\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-156\">\n<p><strong>\u4e0d\u9069\u5207\u306a\u4f8b:<\/strong><\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class User {\n    protected String password; \/\/ \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\uff1a\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\n}<\/pre>\n\n\n<div id=\"sgb-css-id-157\">\n<p><strong>\u9069\u5207\u306a\u4f8b:<\/strong><\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class User {\n    private String password; \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u306fprivate\u306b\u4fdd\u6301\n\n    protected void validatePassword(String input) {\n        \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\n        if (!password.equals(input)) {\n            throw new IllegalArgumentException(\"Invalid password\");\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-160\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-158\">\n<li>\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u30e1\u30f3\u30d0\u30fc\u306e\u307f\u3092<code>protected<\/code>\u306b\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-159\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u308f\u308b\u60c5\u5831\u306f\u5e38\u306b<code>private<\/code>\u306b\u3059\u308b<\/li>\n<\/div>\n\n\n<li><code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u306e\u5185\u90e8\u3067\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u30c1\u30a7\u30c3\u30af\u3092\u884c\u3046<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-161\">\n<h3 class=\"wp-block-heading\" id=\"i-21\">5.2 \u9069\u5207\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3067\u610f\u56f3\u3092\u660e\u78ba\u306b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-162\">\n<p><code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u4f7f\u7528\u610f\u56f3\u3084\u62e1\u5f35\u65b9\u6cd5\u3092\u660e\u78ba\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u8aa4\u7528\u3084\u4e0d\u9069\u5207\u306a\u62e1\u5f35\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u9069\u5207\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u4ed6\u306e\u958b\u767a\u8005\u304c\u30b3\u30fc\u30c9\u3092\u7406\u89e3\u3057\u3001\u6b63\u3057\u304f\u5229\u7528\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u624b\u6bb5\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-163\">\n<p><strong>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u4f8b:<\/strong><\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/**\n * \u30e6\u30fc\u30b6\u30fc\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002\n * \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30ab\u30b9\u30bf\u30e0\u306e\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u306b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u307e\u3059\u3002\n *\n * @param input \u691c\u8a3c\u3059\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\n * @throws IllegalArgumentException \u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u7121\u52b9\u306a\u5834\u5408\n *\/\nprotected void validatePassword(String input) {\n    \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u691c\u8a3c\u30ed\u30b8\u30c3\u30af\n}<\/pre>\n\n\n<div id=\"sgb-css-id-166\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\uff1a<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-164\">\n<li>JavaDoc\u3092\u4f7f\u7528\u3057\u3066<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u76ee\u7684\u3068\u4f7f\u7528\u65b9\u6cd5\u3092\u8a73\u7d30\u306b\u8a18\u8ff0\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-165\">\n<li>\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u53ef\u80fd\u306a\u30e1\u30bd\u30c3\u30c9\u306b\u306f<code>@Override<\/code>\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u30af\u30e9\u30b9\u30ec\u30d9\u30eb\u306e\u30b3\u30e1\u30f3\u30c8\u3067<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u5168\u4f53\u7684\u306a\u8a2d\u8a08\u610f\u56f3\u3092\u8aac\u660e\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-167\">\n<h3 class=\"wp-block-heading\" id=\"i-22\">5.3 unit test\u3067\u306eprotected\u30e1\u30f3\u30d0\u30fc\u306e\u6271\u3044\u65b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-168\">\n<p><code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306f\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30e6\u30cb\u30c3\u30c8\u30c6\u30b9\u30c8\u304c\u56f0\u96e3\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u9069\u5207\u306a\u30c6\u30b9\u30c8\u6226\u7565\u3092\u7528\u3044\u308b\u3053\u3068\u3067\u3001<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u3082\u52b9\u679c\u7684\u306b\u30c6\u30b9\u30c8\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-169\">\n<p><strong>\u30c6\u30b9\u30c8\u6226\u7565:<\/strong><\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-170\">\n<li>\u30c6\u30b9\u30c8\u7528\u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u3066<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-171\">\n<li>\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u7528\u3057\u3066<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306e\u30c6\u30b9\u30c8\u30d8\u30eb\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<\/ol>\n\n\n<div id=\"sgb-css-id-172\">\n<p><strong>\u30c6\u30b9\u30c8\u4f8b:<\/strong><\/p>\n<\/div>\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">class UserTest extends User {\n    @Test\n    void testValidatePassword() {\n        \/\/ protected\u30e1\u30bd\u30c3\u30c9\u3092\u30c6\u30b9\u30c8\n        assertDoesNotThrow(() -&gt; validatePassword(\"correctPassword\"));\n        assertThrows(IllegalArgumentException.class, () -&gt; validatePassword(\"wrongPassword\"));\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-174\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:#ffb36b;color:#FFF\" class=\"sgb-box-simple__title\">\u6ce8\u610f\u70b9:<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:#ffb36b;background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-173\">\n<li>\u30c6\u30b9\u30c8\u306e\u305f\u3081\u306b<code>protected<\/code>\u306e\u7bc4\u56f2\u3092\u5e83\u3052\u3059\u304e\u306a\u3044\u3088\u3046\u6ce8\u610f\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\u304c\u5b9f\u88c5\u306e\u8a73\u7d30\u306b\u904e\u5ea6\u306b\u4f9d\u5b58\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-175\">\n<p>\u5b9f\u969b\u306e\u958b\u767a\u30b7\u30fc\u30f3\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u7279\u306b\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-176\">\n<li>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u958b\u767a<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-177\">\n<li>\u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u8a2d\u8a08<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-178\">\n<li>\u30d7\u30e9\u30b0\u30a4\u30f3\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u5b9f\u88c5<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-179\">\n<li>\u30ec\u30ac\u30b7\u30fc\u30b3\u30fc\u30c9\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-183\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u5171\u901a\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-180\">\n<li>\u5e38\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5ff5\u982d\u306b\u7f6e\u3044\u3066<code>protected<\/code>\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-181\">\n<li>\u30af\u30e9\u30b9\u8a2d\u8a08\u6642\u306b<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306e\u5fc5\u8981\u6027\u3092\u614e\u91cd\u306b\u8a55\u4fa1\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-182\">\n<li>\u7d99\u627f\u968e\u5c64\u304c\u6df1\u304f\u306a\u308a\u3059\u304e\u306a\u3044\u3088\u3046\u6ce8\u610f\u3059\u308b<\/li>\n<\/div>\n\n\n<li>\u5b9a\u671f\u7684\u306b\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3092\u884c\u3044\u3001<code>protected<\/code>\u306e\u4f7f\u7528\u304c\u9069\u5207\u304b\u30c1\u30a7\u30c3\u30af\u3059\u308b<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-184\">\n<p>\u3053\u308c\u3089\u306e\u6ce8\u610f\u70b9\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u3067\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5229\u70b9\u3092\u6700\u5927\u9650\u306b\u6d3b\u304b\u3057\u3064\u3064\u3001\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u7406\u89e3\u3092\u3055\u3089\u306b\u6df1\u3081\u308b\u305f\u3081\u306e\u95a2\u9023\u6982\u5ff5\u3068\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30b9\u30ad\u30eb\u3092\u4e00\u5c64\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-185\">\n<h2 class=\"wp-block-heading\" id=\"i-23\">6. protected\u30de\u30b9\u30bf\u30fc\u3078\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\uff1a\u95a2\u9023\u6982\u5ff5\u3068\u5b66\u7fd2\u30ea\u30bd\u30fc\u30b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-186\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u7406\u89e3\u3092\u6df1\u3081\u3001\u3088\u308a\u9ad8\u5ea6\u306aJava\u958b\u767a\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u305f\u3081\u306b\u306f\u3001\u95a2\u9023\u3059\u308b\u6982\u5ff5\u3084\u6280\u8853\u306b\u3064\u3044\u3066\u3082\u5b66\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u305f\u3081\u306e\u91cd\u8981\u306a\u6982\u5ff5\u3068\u6709\u7528\u306a\u30ea\u30bd\u30fc\u30b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-187\">\n<h3 class=\"wp-block-heading\" id=\"i-24\">6.1 \u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-188\">\n<p>\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u3001\u30b3\u30fc\u30c9\u306e\u7d44\u7e54\u5316\u3001\u30ab\u30d7\u30bb\u30eb\u5316\u3001\u518d\u5229\u7528\u6027\u306e\u5411\u4e0a\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-190\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u5f79\u5272<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-189\">\n<li>\u30d1\u30c3\u30b1\u30fc\u30b8\uff1a \u95a2\u9023\u3059\u308b\u30af\u30e9\u30b9\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u4ed5\u7d44\u307f<\/li>\n<\/div>\n\n\n<li>\u30e2\u30b8\u30e5\u30fc\u30eb\uff1a Java 9\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305f\u5927\u898f\u6a21\u306a\u30b3\u30fc\u30c9\u7d44\u7e54\u5316\u306e\u5358\u4f4d<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-191\">\n<p><code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u30ec\u30d9\u30eb\u3067\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3084\u30e2\u30b8\u30e5\u30fc\u30eb\u9593\u306e\u53ef\u8996\u6027\u5236\u5fa1\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001<code>protected<\/code>\u30e1\u30f3\u30d0\u30fc\u306f\u540c\u3058\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3059\u304c\u3001\u7570\u306a\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u304b\u3089\u306f\u7d99\u627f\u95a2\u4fc2\u304c\u3042\u308b\u5834\u5408\u306e\u307f\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-192\">\n<p>\u5b66\u7fd2\u30d2\u30f3\u30c8: \u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u30d1\u30c3\u30b1\u30fc\u30b8\u8a2d\u8a08\u3092\u884c\u3044\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306b\u3088\u308a\u3001<code>protected<\/code>\u306e\u632f\u308b\u821e\u3044\u3092\u3088\u308a\u6df1\u304f\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-193\">\n<h3 class=\"wp-block-heading\" id=\"i-25\">6.2 \u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068protected\u306e\u95a2\u4fc2\u6027<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-194\">\n<p>\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u52b9\u7387\u7684\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u8a2d\u8a08\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-197\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u95a2\u9023\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3068 <code>protected <\/code>\u306e\u6d3b\u7528\u4f8b<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ul class=\"wp-block-list\"><div id=\"sgb-css-id-195\">\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\uff1a \u57fa\u5e95\u30af\u30e9\u30b9\u3067<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-196\">\n<li>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\uff1a <code>protected<\/code>\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3092\u5236\u5fa1<\/li>\n<\/div>\n\n\n<li>\u30b9\u30c6\u30fc\u30c8\u30d1\u30bf\u30fc\u30f3\uff1a \u72b6\u614b\u9077\u79fb\u30ed\u30b8\u30c3\u30af\u3092<code>protected<\/code>\u30e1\u30bd\u30c3\u30c9\u3068\u3057\u3066\u5b9f\u88c5<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-198\">\n<p>\u5b66\u7fd2\u30d2\u30f3\u30c8\uff1a \u3053\u308c\u3089\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u5b9f\u88c5\u3092\u8a66\u307f\u3001<code>protected<\/code>\u306e\u5f79\u5272\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u67d4\u8edf\u3067\u62e1\u5f35\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u80fd\u529b\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-199\">\n<h3 class=\"wp-block-heading\" id=\"i-26\">6.3 \u304a\u3059\u3059\u3081\u306e\u66f8\u7c4d\u3068\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u6750\u6599<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-200\">\n<p>\u3055\u3089\u306a\u308b\u5b66\u7fd2\u306e\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-201\">\n<p><strong>\u66f8\u7c4d\uff1a<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-202\">\n<p>1.\u201dEffective Java\u201d by Joshua Bloch<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-203\">\n<li>Java\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7db2\u7f85\u7684\u306b\u89e3\u8aac\u3057\u3066\u304a\u308a\u3001<code>protected<\/code>\u3092\u542b\u3080\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u9069\u5207\u306a\u4f7f\u7528\u65b9\u6cd5\u3082\u5b66\u3079\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-204\">\n<p>2.\u201dClean Code\u201d by Robert C. Martin<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-205\">\n<li>\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u306e\u66f8\u304d\u65b9\u3092\u5b66\u3079\u3001\u9069\u5207\u306a\u30ab\u30d7\u30bb\u30eb\u5316\u3068<code>protected<\/code>\u306e\u4f7f\u7528\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-206\">\n<p><strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u5b66\u7fd2\u6750\u6599\uff1a<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-207\">\n<p>1.Java Design Patterns (<a href=\"https:\/\/java-design-patterns.com\/\">https:\/\/java-design-patterns.com\/<\/a>)<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\">\n<li>\u69d8\u3005\u306a\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306eJava\u5b9f\u88c5\u4f8b\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001<code>protected<\/code>\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u5b66\u3079\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n<div id=\"sgb-css-id-208\">\n<p>2.Baeldung (<a href=\"https:\/\/www.baeldung.com\/\">https:\/\/www.baeldung.com\/<\/a>)<\/p>\n<\/div>\n\n\n<ul class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-209\">\n<li>Java\u306e\u9ad8\u5ea6\u306a\u30c8\u30d4\u30c3\u30af\u306b\u95a2\u3059\u308b\u8a73\u7d30\u306a\u8a18\u4e8b\u3068\u4f8b\u304c\u3042\u308a\u3001<code>protected<\/code>\u3092\u542b\u3080\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306b\u3064\u3044\u3066\u3082\u6df1\u304f\u5b66\u3079\u307e\u3059\u3002<\/li>\n<\/div><\/ul>\n\n\n<div id=\"sgb-css-id-210\">\n<p>\u3053\u308c\u3089\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u4f7f\u7528\u3092\u3088\u308a\u5e83\u3044\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u7406\u89e3\u3057\u3001\u5b9f\u8df5\u7684\u306aJava\u958b\u767a\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-213\">\n<div class=\"wp-block-sgb-block-simple sgb-box-simple sgb-box-simple--title-normal sgb-box-simple--with-border\"><div style=\"background-color:var(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\">\u81ea\u5df1\u5b66\u7fd2\u306e\u305f\u3081\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30a2\u30a4\u30c7\u30a2<\/div><div class=\"sgb-box-simple__body\" style=\"border-color:var(--wp--preset--color--sango-main);background-color:#FFF\">\n<ol class=\"wp-block-list\"><div id=\"sgb-css-id-211\">\n<li>\u7c21\u5358\u306a\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u4f5c\u6210\uff08<code>protected<\/code>\u3092\u6d3b\u7528\u3057\u305f\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u30dd\u30a4\u30f3\u30c8\u306e\u8a2d\u8a08\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-212\">\n<li>\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u6d3b\u7528\u3057\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5<\/li>\n<\/div>\n\n\n<li>\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a<\/li>\n<\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-214\">\n<p>\u3053\u308c\u3089\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u53d6\u308a\u7d44\u3080\u3053\u3068\u3067\u3001<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u5b9f\u8df5\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3092\u4f53\u9a13\u3057\u3001\u3088\u308a\u6df1\u3044\u7406\u89e3\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-215\">\n<p>Java\u30de\u30b9\u30bf\u30fc\u3078\u306e\u9053\u306e\u308a\u306f\u9577\u3044\u3067\u3059\u304c\u3001\u4e00\u6b69\u4e00\u6b69\u7740\u5b9f\u306b\u9032\u3093\u3067\u3044\u3051\u3070\u3001\u5fc5\u305a\u76ee\u6a19\u306b\u5230\u9054\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3093\u3060<code>protected<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u77e5\u8b58\u3092\u57fa\u306b\u3001\u3055\u3089\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\u3068\u5b9f\u8df5\u304c\u3001\u3042\u306a\u305f\u3092\u512a\u308c\u305fJava\u958b\u767a\u8005\u3078\u3068\u5c0e\u304f\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Warning: Undefined array key &#8220;is_admin&#8221; in \/home\/xs392991\/dexall.co.jp\/public_html\/articles\/wp-content\/themes\/ &#8230; <\/p>\n","protected":false},"author":1,"featured_media":3013,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,72,66],"tags":[],"class_list":{"0":"post-375","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-java","8":"category-java-oop","9":"category-java-syntax"},"_links":{"self":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/375","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=375"}],"version-history":[{"count":11,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/375\/revisions"}],"predecessor-version":[{"id":3031,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/375\/revisions\/3031"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/media\/3013"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}