{"id":247,"date":"2024-10-03T14:06:14","date_gmt":"2024-10-03T05:06:14","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=247"},"modified":"2025-03-24T08:54:56","modified_gmt":"2025-03-23T23:54:56","slug":"%e3%80%90java%e5%ae%8c%e5%85%a8%e8%a7%a3%e8%aa%ac%e3%80%91final%e3%82%ad%e3%83%bc%e3%83%af%e3%83%bc%e3%83%89%e6%b4%bb%e7%94%a8%e8%a1%93%ef%bc%9a%e3%82%b3%e3%83%bc%e3%83%89%e5%93%81%e8%b3%aa%e3%82%9210","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=247","title":{"rendered":"\u3010Java\u5b8c\u5168\u89e3\u8aac\u3011final\u30ad\u30fc\u30ef\u30fc\u30c9\u6d3b\u7528\u8853\uff1a\u30b3\u30fc\u30c9\u54c1\u8cea\u309210\u500d\u9ad8\u3081\u308b7\u3064\u306e\u4f7f\u3044\u65b9"},"content":{"rendered":"<div id=\"sgb-css-id-1\">\n<p>\u3042\u306a\u305f\u306f\u81ea\u4fe1\u3092\u6301\u3063\u3066\u300cfinal\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u4f7f\u3044\u3053\u306a\u3057\u3066\u3044\u308b\u300d\u3068\u8a00\u3048\u307e\u3059\u304b\uff1f<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-2\">\n<p>Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u975e\u5e38\u306b\u5f37\u529b\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u3057\u3070\u3057\u3070\u8aa4\u89e3\u3055\u308c\u3001\u305d\u306e\u771f\u306e\u529b\u304c\u6d3b\u304b\u3055\u308c\u3066\u3044\u306a\u3044\u30b1\u30fc\u30b9\u304c\u591a\u3005\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u9069\u5207\u306b\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u3042\u306a\u305f\u306e\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3001\u5b89\u5168\u6027\u3001\u305d\u3057\u3066\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5287\u7684\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-3\">\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Java\u306e<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u3064\u3044\u3066\u3001\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5fb9\u5e95\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u521d\u5fc3\u8005\u306e\u65b9\u304b\u3089\u7d4c\u9a13\u8c4a\u5bcc\u306a\u958b\u767a\u8005\u307e\u3067\u3001\u304d\u3063\u3068\u65b0\u3057\u3044\u767a\u898b\u304c\u3042\u308b\u306f\u305a\u3067\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\">\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3079\u308b\u3053\u3068<\/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-4\">\n<li>final\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u672c\u8cea\u3068\u3001\u306a\u305c\u305d\u308c\u304cJava\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u91cd\u8981\u306a\u306e\u304b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-5\">\n<li>final\u3092\u4f7f\u3063\u305f7\u3064\u306e\u5f37\u529b\u306a\u30c6\u30af\u30cb\u30c3\u30af\uff08\u5909\u6570\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u30af\u30e9\u30b9\u3067\u306e\u6d3b\u7528\u6cd5\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-6\">\n<li>final\u304c\u3082\u305f\u3089\u3059\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u3068\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\n<li>final\u306e\u843d\u3068\u3057\u7a74\u3068\u3001\u305d\u308c\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-8\">\n<li>final\u30de\u30b9\u30bf\u30fc\u306b\u306a\u3063\u305f\u5f8c\u306e\u3001\u3055\u3089\u306a\u308b\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\u306e\u9053\u7b4b<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-9\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u5358\u306a\u308b\u300c\u5909\u66f4\u4e0d\u53ef\u300d\u3092\u793a\u3059\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u4f1d\u3048\u3001\u30d0\u30b0\u3092\u672a\u7136\u306b\u9632\u304e\u3001JVM\u306e\u6700\u9069\u5316\u3092\u4fc3\u9032\u3059\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u306a\u306e\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<p>\u696d\u754c\u306e\u30c8\u30ec\u30f3\u30c9\u3092\u898b\u3066\u3082\u3001\u9ad8\u54c1\u8cea\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3078\u306e\u9700\u8981\u304c\u9ad8\u307e\u3063\u3066\u3044\u308b\u4eca\u3001<code>final<\/code>\u306e\u9069\u5207\u306a\u4f7f\u7528\u306f\u3001\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306aJava\u958b\u767a\u8005\u306b\u3068\u3063\u3066\u5fc5\u9808\u306e\u30b9\u30ad\u30eb\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\n<p>final\u306e\u7406\u89e3\u3092\u6df1\u3081\u3001\u3042\u306a\u305f\u306eJava\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30ad\u30eb\u3092\u6b21\u306e\u30ec\u30d9\u30eb\u306b\u5f15\u304d\u4e0a\u3052\u307e\u3057\u3087\u3046\uff01<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-12\">\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. final\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u306f\uff1fJava\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u5f79\u5272\u3068\u91cd\u8981\u6027<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">1.1 final\u306e\u57fa\u672c\u6982\u5ff5\uff1a\u5909\u66f4\u4e0d\u53ef\u80fd\u6027\u306e\u5c0e\u5165<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">1.2 \u306a\u305cfinal\u3092\u4f7f\u3046\u306e\u304b\uff1f\u30b3\u30fc\u30c9\u54c1\u8cea\u5411\u4e0a\u3078\u306e\u9053<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">2. final\u306e7\u3064\u306e\u5f37\u529b\u306a\u4f7f\u3044\u65b9\uff1a\u30b3\u30fc\u30c9\u54c1\u8cea\u309210\u500d\u9ad8\u3081\u308b\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-4\">2.1 \u5909\u6570\u3092final\u3067\u5ba3\u8a00\uff1a\u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u3050<\/a>      <\/li>      <li>        <a href=\"#i-5\">2.2 \u30e1\u30bd\u30c3\u30c9\u30d1\u30e9\u30e1\u30fc\u30bf\u306bfinal\u3092\u4f7f\u7528\uff1a\u5f15\u6570\u306e\u5b89\u5168\u6027\u3092\u78ba\u4fdd<\/a>      <\/li>      <li>        <a href=\"#i-6\">2.3 \u30af\u30e9\u30b9\u3092final\u3067\u5ba3\u8a00\uff1a\u7d99\u627f\u3092\u5236\u9650\u3057\u3001\u8a2d\u8a08\u3092\u660e\u78ba\u306b<\/a>      <\/li>      <li>        <a href=\"#i-7\">2.4 \u30e1\u30bd\u30c3\u30c9\u3092final\u3067\u5ba3\u8a00\uff1a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u9632\u6b62<\/a>      <\/li>      <li>        <a href=\"#i-8\">2.5 \u5b9a\u6570\u306e\u5b9a\u7fa9\uff1astatic final\u306e\u5a01\u529b<\/a>      <\/li>      <li>        <a href=\"#i-9\">2.6 final\u3068immutability\u306e\u95a2\u4fc2\uff1a\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u8a08<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-10\">2.7 \u533f\u540d\u30af\u30e9\u30b9\u3067\u306efinal\u5909\u6570\u306e\u6d3b\u7528\uff1a\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u306e\u5b9f\u73fe<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-11\">3. final\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-12\">3.1 JVM\u306e\u6700\u9069\u5316\uff1afinal\u304c\u3082\u305f\u3089\u3059\u901f\u5ea6\u5411\u4e0a<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-13\">3.2 \u4e26\u884c\u51e6\u7406\u306b\u304a\u3051\u308bfinal\u306e\u5f79\u5272\uff1a\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306e\u5411\u4e0a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-14\">4. final\u306e\u843d\u3068\u3057\u7a74\u3068\u6ce8\u610f\u70b9\uff1a\u9069\u5207\u306a\u4f7f\u7528\u306e\u305f\u3081\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-15\">4.1 \u904e\u5270\u306afinal\u4f7f\u7528\u306e\u5371\u967a\u6027\uff1a\u67d4\u8edf\u6027\u3068\u306e\u30d0\u30e9\u30f3\u30b9<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-16\">4.2 final\u3068\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\uff1a\u9069\u5207\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u306e\u898b\u6975\u3081<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-17\">5. Java\u958b\u767a\u8005\u306e\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\uff1afinal\u30de\u30b9\u30bf\u30fc\u304b\u3089\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-18\">5.1 final\u3092\u6d3b\u7528\u3057\u305f\u30af\u30ea\u30fc\u30f3\u30b3\u30fc\u30c9\u4f5c\u6210\uff1a\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4f8b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">5.2 \u9ad8\u5ea6\u306aJava\u8a00\u8a9e\u6a5f\u80fd\u306e\u63a2\u6c42\uff1a\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3001\u30e9\u30e0\u30c0\u5f0f\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-20\">\u307e\u3068\u3081\u3068\u7d50\u8ad6<\/a>  <\/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. final\u30ad\u30fc\u30ef\u30fc\u30c9\u3068\u306f\uff1fJava\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3051\u308b\u5f79\u5272\u3068\u91cd\u8981\u6027<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-13\">\n<p>Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u5909\u6570\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u30af\u30e9\u30b9\u306b\u5bfe\u3057\u3066\u4f7f\u7528\u3067\u304d\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u304c\u3001\u6839\u672c\u7684\u306b\u306f\u300c\u5909\u66f4\u4e0d\u53ef\u80fd\u6027\u300d\u3092\u8868\u73fe\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<h3 class=\"wp-block-heading\" id=\"i-1\">1.1 final\u306e\u57fa\u672c\u6982\u5ff5\uff1a\u5909\u66f4\u4e0d\u53ef\u80fd\u6027\u306e\u5c0e\u5165<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-15\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u57fa\u672c\u7684\u306a\u5f79\u5272\u306f\u3001\u5bfe\u8c61\u3068\u306a\u308b\u8981\u7d20\u3092\u300c\u5909\u66f4\u4e0d\u53ef\u80fd\u300d\u306b\u3059\u308b\u3053\u3068\u3067\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>final<\/code> \u306e\u57fa\u672c\u7684\u306a\u5f79\u5272\u306e\u5177\u4f53\u4f8b<\/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-16\">\n<li><strong>final\u5909\u6570<\/strong>\uff1a \u4e00\u5ea6\u5024\u304c\u4ee3\u5165\u3055\u308c\u308b\u3068\u3001\u305d\u306e\u5f8c\u5909\u66f4\u3067\u304d\u306a\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-17\">\n<li><strong>final\u30e1\u30bd\u30c3\u30c9<\/strong>\uff1a \u30b5\u30d6\u30af\u30e9\u30b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-18\">\n<li><strong>final\u30af\u30e9\u30b9<\/strong>\uff1a \u7d99\u627f\u3067\u304d\u306a\u3044\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-19\">\n<p>final\u5909\u6570\u306e\u4f7f\u7528\u4f8b\u3092\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u3057\u3066\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=\"\">final int MAX_USERS = 100;\nMAX_USERS = 200; \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\uff1a\u5024\u3092\u5909\u66f4\u3067\u304d\u307e\u305b\u3093<\/pre>\n\n\n<div id=\"sgb-css-id-20\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>MAX_USERS<\/code>\u3068\u3044\u3046\u5b9a\u6570\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u5ea6\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u308b\u3068\u3001\u305d\u308c\u4ee5\u964d\u306f\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-21\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">1.2 \u306a\u305cfinal\u3092\u4f7f\u3046\u306e\u304b\uff1f\u30b3\u30fc\u30c9\u54c1\u8cea\u5411\u4e0a\u3078\u306e\u9053<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5229\u70b9\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-23\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u5b89\u5168\u6027\u5411\u4e0a<\/strong>\uff1a \u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u304e\u3001\u30d0\u30b0\u306e\u767a\u751f\u3092\u6e1b\u3089\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-24\">\n<li><strong>\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u5411\u4e0a<\/strong>\uff1a \u5909\u6570\u3084\u65b9\u6cd5\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308a\u3001\u4ed6\u306e\u958b\u767a\u8005\u306e\u7406\u89e3\u3092\u52a9\u3051\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-25\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316<\/strong>\uff1a JVM\u304c\u6700\u9069\u5316\u3092\u884c\u3044\u3084\u3059\u304f\u306a\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-26\">\n<li><strong>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306e\u5411\u4e0a<\/strong>\uff1a \u4e26\u884c\u51e6\u7406\u306b\u304a\u3044\u3066\u3001\u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u3092\u4fdd\u8a3c\u3057\u3084\u3059\u304f\u3059\u308b\u3002<\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-27\">\n<p>\u4f8b\u3048\u3070\u3001\u30e1\u30bd\u30c3\u30c9\u30d1\u30e9\u30e1\u30fc\u30bf\u3092<code>final<\/code>\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u5909\u66f4\u3055\u308c\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\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 void processUser(final User user) {\n    \/\/ user\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u81ea\u4f53\u306f\u5909\u66f4\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u5909\u66f4\u53ef\u80fd\u3067\u3059\n    user.setLastLoginDate(new Date());\n    \/\/ user = new User(); \/\/ \u3053\u308c\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3059\n}<\/pre>\n\n\n<div id=\"sgb-css-id-28\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>user<\/code>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u81ea\u4f53\u3092\u5225\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5dee\u3057\u66ff\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u5909\u66f4\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4e88\u671f\u305b\u305a\u518d\u4ee3\u5165\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u304e\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u3088\u308a\u660e\u78ba\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-29\">\n<p><code>final<\/code>\u306e\u4f7f\u7528\u306f\u3001\u5358\u306a\u308b\u5236\u7d04\u3067\u306f\u306a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u3001\u7d50\u679c\u3068\u3057\u3066\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u306e\u54c1\u8cea\u5411\u4e0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-30\">\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e7\u3064\u306e\u5177\u4f53\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u3068\u3001\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u304b\u3092\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-31\">\n<h2 class=\"wp-block-heading\" id=\"i-3\">2. final\u306e7\u3064\u306e\u5f37\u529b\u306a\u4f7f\u3044\u65b9\uff1a\u30b3\u30fc\u30c9\u54c1\u8cea\u309210\u500d\u9ad8\u3081\u308b\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-32\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u30017\u3064\u306e\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u3092\u7d39\u4ecb\u3057\u3001\u305d\u308c\u305e\u308c\u304c\u3069\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u54c1\u8cea\u306e\u5411\u4e0a\u306b\u8ca2\u732e\u3059\u308b\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-33\">\n<h3 class=\"wp-block-heading\" id=\"i-4\">2.1 \u5909\u6570\u3092final\u3067\u5ba3\u8a00\uff1a\u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u3050<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-34\">\n<p><code>final<\/code>\u5909\u6570\u306f\u3001\u4e00\u5ea6\u521d\u671f\u5316\u3055\u308c\u308b\u3068\u5024\u3092\u5909\u66f4\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5909\u6570\u306e\u4e0d\u5909\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u3050\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 UserService {\n    private final int MAX_USERS = 100;\n    private final String SERVICE_NAME;\n\n    public UserService(String name) {\n        this.SERVICE_NAME = name;\n    }\n\n    public void addUser(User user) {\n        \/\/ MAX_USERS\u3068SERVICE_NAME\u306f\u5909\u66f4\u3067\u304d\u306a\u3044\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-35\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>MAX_USERS<\/code>\u3068<code>SERVICE_NAME<\/code>\u3092<code>final<\/code>\u3067\u5ba3\u8a00\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u308c\u3089\u306e\u5024\u304c\u4e0d\u5909\u3067\u3042\u308b\u3053\u3068\u3092\u660e\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u660e\u78ba\u306b\u306a\u308a\u3001\u30d0\u30b0\u306e\u767a\u751f\u30ea\u30b9\u30af\u304c\u6e1b\u5c11\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<h3 class=\"wp-block-heading\" id=\"i-5\">2.2 \u30e1\u30bd\u30c3\u30c9\u30d1\u30e9\u30e1\u30fc\u30bf\u306bfinal\u3092\u4f7f\u7528\uff1a\u5f15\u6570\u306e\u5b89\u5168\u6027\u3092\u78ba\u4fdd<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-37\">\n<p>\u30e1\u30bd\u30c3\u30c9\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092<code>final<\/code>\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u518d\u4ee3\u5165\u3055\u308c\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\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 void processOrder(final Order order, final Customer customer) {\n    \/\/ order\u3068customer\u306f\u518d\u4ee3\u5165\u3067\u304d\u306a\u3044\n    order.setStatus(OrderStatus.PROCESSING);\n    customer.addOrder(order);\n    \/\/ order = new Order(); \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\n}<\/pre>\n\n\n<div id=\"sgb-css-id-38\">\n<p>\u3053\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4e88\u671f\u305b\u305a\u5909\u66f4\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u304e\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u3088\u308a\u660e\u78ba\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-39\">\n<h3 class=\"wp-block-heading\" id=\"i-6\">2.3 \u30af\u30e9\u30b9\u3092final\u3067\u5ba3\u8a00\uff1a\u7d99\u627f\u3092\u5236\u9650\u3057\u3001\u8a2d\u8a08\u3092\u660e\u78ba\u306b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-40\">\n<p>\u30af\u30e9\u30b9\u3092<code>final<\/code>\u3067\u5ba3\u8a00\u3059\u308b\u3068\u3001\u305d\u306e\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30af\u30e9\u30b9\u306e\u52d5\u4f5c\u3092\u5b8c\u5168\u306b\u5236\u5fa1\u3057\u305f\u3044\u5834\u5408\u3084\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u7406\u7531\u3067\u7d99\u627f\u3092\u7981\u6b62\u3057\u305f\u3044\u5834\u5408\u306b\u6709\u7528\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=\"\">public final class SecurityManager {\n    \/\/ \u3053\u306e\u30af\u30e9\u30b9\u306f\u7d99\u627f\u3067\u304d\u306a\u3044\n    public void authenticate(User user) {\n        \/\/ \u8a8d\u8a3c\u30ed\u30b8\u30c3\u30af\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-41\">\n<p><code>final<\/code>\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30af\u30e9\u30b9\u306e\u8a2d\u8a08\u610f\u56f3\u3092\u660e\u78ba\u306b\u3057\u3001\u4e88\u671f\u3057\u306a\u3044\u52d5\u4f5c\u306e\u5909\u66f4\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-42\">\n<h3 class=\"wp-block-heading\" id=\"i-7\">2.4 \u30e1\u30bd\u30c3\u30c9\u3092final\u3067\u5ba3\u8a00\uff1a\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3092\u9632\u6b62<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-43\">\n<p>\u30e1\u30bd\u30c3\u30c9\u3092<code>final<\/code>\u3067\u5ba3\u8a00\u3059\u308b\u3068\u3001\u30b5\u30d6\u30af\u30e9\u30b9\u3067\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u91cd\u8981\u306a\u30ed\u30b8\u30c3\u30af\u3092\u4fdd\u8b77\u3057\u305f\u3044\u5834\u5408\u306b\u6709\u52b9\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=\"\">public class PaymentProcessor {\n    public final void processPayment(Payment payment) {\n        \/\/ \u652f\u6255\u3044\u51e6\u7406\u306e\u30b3\u30a2\n\n\u30ed\u30b8\u30c3\u30af\n        \/\/ \u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-44\">\n<p>\u3053\u306e\u65b9\u6cd5\u306b\u3088\u308a\u3001\u91cd\u8981\u306a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4e00\u8cab\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-45\">\n<h3 class=\"wp-block-heading\" id=\"i-8\">2.5 \u5b9a\u6570\u306e\u5b9a\u7fa9\uff1astatic final\u306e\u5a01\u529b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-46\">\n<p><code>static final<\/code>\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30af\u30e9\u30b9\u30ec\u30d9\u30eb\u306e\u5b9a\u6570\u3092\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u9593\u3067\u5171\u6709\u3055\u308c\u308b\u4e0d\u5909\u306e\u5024\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=\"\">public class ConfigConstants {\n    public static final String API_VERSION = \"v1.0\";\n    public static final int MAX_CONNECTIONS = 100;\n    public static final List&lt;String&gt; SUPPORTED_LANGUAGES = \n        Collections.unmodifiableList(Arrays.asList(\"en\", \"es\", \"fr\"));\n}<\/pre>\n\n\n<div id=\"sgb-css-id-47\">\n<p>\u3053\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u5b9a\u6570\u306f\u3001\u30b3\u30fc\u30c9\u5168\u4f53\u3067\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3067\u304d\u3001\u5909\u66f4\u30ea\u30b9\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-48\">\n<h3 class=\"wp-block-heading\" id=\"i-9\">2.6 final\u3068immutability\u306e\u95a2\u4fc2\uff1a\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u8a08<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-49\">\n<p><code>final<\/code>\u3092\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u5909\uff08\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\uff09\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8a2d\u8a08\u3067\u304d\u307e\u3059\u3002\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u4f5c\u6210\u5f8c\u306b\u305d\u306e\u72b6\u614b\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\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=\"\">public final class ImmutablePerson {\n    private final String name;\n    private final int age;\n\n    public ImmutablePerson(String name, int age) {\n        this.name = name;\n        this.age = age;\n    }\n\n    public String getName() { return name; }\n    public int getAge() { return age; }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-50\">\n<p>\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3067\u3042\u308a\u3001\u4e88\u671f\u3057\u306a\u3044\u526f\u4f5c\u7528\u3092\u9632\u3050\u305f\u3081\u3001\u4e26\u884c\u51e6\u7406\u3084\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3067\u7279\u306b\u6709\u7528\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-51\">\n<h3 class=\"wp-block-heading\" id=\"i-10\">2.7 \u533f\u540d\u30af\u30e9\u30b9\u3067\u306efinal\u5909\u6570\u306e\u6d3b\u7528\uff1a\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u306e\u5b9f\u73fe<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<p>Java 8\u4ee5\u524d\u3067\u306f\u3001\u533f\u540d\u30af\u30e9\u30b9\u5185\u3067\u5916\u90e8\u306e\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u305d\u306e\u5909\u6570\u306f<code>final<\/code>\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u306e\u3088\u3046\u306a\u52d5\u4f5c\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u91cd\u8981\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=\"\">public void executeTask(final String taskName) {\n    final int priority = calculatePriority(taskName);\n    \n    new Thread(new Runnable() {\n        @Override\n        public void run() {\n            System.out.println(\"Executing task: \" + taskName + \" with priority: \" + priority);\n            \/\/ taskName\u3068priority\u306f\u5909\u66f4\u3067\u304d\u306a\u3044\u304c\u3001\u3053\u3053\u3067\u4f7f\u7528\u53ef\u80fd\n        }\n    }).start();\n}<\/pre>\n\n\n\n<p>Java 8\u4ee5\u964d\u3067\u306f\u3001\u5b9f\u8cea\u7684\u306bfinal\uff08effectively final\uff09\u306a\u5909\u6570\u3082\u540c\u69d8\u306b\u6271\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u660e\u793a\u7684\u306b<code>final<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u304c\u3088\u308a\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<div id=\"sgb-css-id-53\">\n<p>\u3053\u308c\u3089\u306e7\u3064\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u9069\u5207\u306b\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u3067\u4fdd\u5b88\u6027\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<code>final<\/code>\u306e\u4f7f\u7528\u306f\u3001\u5358\u306a\u308b\u5236\u7d04\u3067\u306f\u306a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u308b\u305f\u3081\u306e\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306e\u4e3b\u306a\u5229\u70b9\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\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\">\u307e\u3068\u3081<\/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-54\">\n<li>\u4e0d\u5909\u6027\u306e\u4fdd\u8a3c\uff1a\u610f\u56f3\u3057\u306a\u3044\u5909\u66f4\u3092\u9632\u304e\u3001\u4e88\u671f\u305b\u306c\u30d0\u30b0\u3092\u6e1b\u3089\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-55\">\n<li>\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u306e\u660e\u78ba\u5316\uff1a\u4ed6\u306e\u958b\u767a\u8005\u304c\u30b3\u30fc\u30c9\u3092\u7406\u89e3\u3057\u3084\u3059\u304f\u306a\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-56\">\n<li>\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306e\u5411\u4e0a\uff1a\u4e26\u884c\u51e6\u7406\u6642\u306e\u554f\u984c\u3092\u6e1b\u3089\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-57\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6700\u9069\u5316\uff1aJVM\u306b\u3088\u308b\u6700\u9069\u5316\u306e\u6a5f\u4f1a\u3092\u5897\u3084\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-58\">\n<li>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\uff1a\u91cd\u8981\u306a\u30ed\u30b8\u30c3\u30af\u3084\u5024\u3092\u4fdd\u8b77\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-59\">\n<li>\u8a2d\u8a08\u306e\u5805\u7262\u6027\uff1a\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u306e\u632f\u308b\u821e\u3044\u3092\u3088\u308a\u53b3\u5bc6\u306b\u5236\u5fa1\u3067\u304d\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-60\">\n<li>\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u30b5\u30dd\u30fc\u30c8\uff1a\u4e0d\u5909\u6027\u3092\u6d3b\u7528\u3057\u305f\u95a2\u6570\u578b\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u4fc3\u9032\u3059\u308b\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-62\">\n<p>\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>final<\/code>\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-63\">\n<h2 class=\"wp-block-heading\" id=\"i-11\">3. final\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u306b\u3088\u308b\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-64\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u30b3\u30fc\u30c9\u306e\u610f\u56f3\u3092\u660e\u78ba\u306b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u4e0a\u3067\u3082\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>final<\/code>\u306e\u4f7f\u7528\u304cJVM\u306e\u6700\u9069\u5316\u306b\u3069\u306e\u3088\u3046\u306b\u8ca2\u732e\u3057\u3001\u4e26\u884c\u51e6\u7406\u306b\u304a\u3044\u3066\u3069\u306e\u3088\u3046\u306a\u5229\u70b9\u3092\u3082\u305f\u3089\u3059\u304b\u3092\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-65\">\n<h3 class=\"wp-block-heading\" id=\"i-12\">3.1 JVM\u306e\u6700\u9069\u5316\uff1afinal\u304c\u3082\u305f\u3089\u3059\u901f\u5ea6\u5411\u4e0a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-66\">\n<p>JVM\uff08Java Virtual Machine\uff09\u306f\u3001<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u69d8\u3005\u306a\u6700\u9069\u5316\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u3001\u5168\u4f53\u7684\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u6539\u5584\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-67\">\n<li><strong>\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u306e\u4fc3\u9032<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-68\">\n<p><code>final<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u3063\u3066\u3088\u308a\u52b9\u679c\u7684\u306b\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3055\u308c\u307e\u3059\u3002\u30a4\u30f3\u30e9\u30a4\u30f3\u5316\u3068\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3092\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u3067\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u3067\u3001\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u524a\u6e1b\u3059\u308b\u6700\u9069\u5316\u6280\u8853\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=\"\">public class MathUtils {\n    public static final int square(int num) {\n        return num * num;\n    }\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nint result = MathUtils.square(5);<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>square<\/code>\u30e1\u30bd\u30c3\u30c9\u304c<code>final<\/code>\u3067\u5ba3\u8a00\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001JIT\u30b3\u30f3\u30d1\u30a4\u30e9\u306f\u5b9f\u884c\u6642\u306b\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3092\u76f4\u63a5\u306e\u4e57\u7b97\u64cd\u4f5c\u306b\u7f6e\u304d\u63db\u3048\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-69\">\n<li><strong>\u5b9a\u6570\u30d5\u30a9\u30fc\u30eb\u30c7\u30a3\u30f3\u30b0<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-70\">\n<p><code>final<\/code>\u5909\u6570\uff08\u7279\u306b<code>static final<\/code>\uff09\u306f\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5024\u304c\u6c7a\u5b9a\u3055\u308c\u308b\u305f\u3081\u3001\u5b9a\u6570\u30d5\u30a9\u30fc\u30eb\u30c7\u30a3\u30f3\u30b0\u3068\u3044\u3046\u6700\u9069\u5316\u6280\u8853\u306e\u5bfe\u8c61\u3068\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=\"\">public class Constants {\n    public static final int MAX_USERS = 1000;\n    public static final String APP_NAME = \"MyApp\";\n}\n\n\/\/ \u4f7f\u7528\u4f8b\nif (userCount &lt; Constants.MAX_USERS) {\n    \/\/ \u51e6\u7406\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001<code>MAX_USERS<\/code>\u306e\u5024\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u6c7a\u5b9a\u3055\u308c\u3001\u76f4\u63a5\u305d\u306e\u5024\uff081000\uff09\u304c\u4f7f\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u5b9f\u884c\u6642\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u30a2\u30af\u30bb\u30b9\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-71\">\n<li><strong>\u30c7\u30d0\u30fc\u30c1\u30e3\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-72\">\n<p><code>final<\/code>\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001JVM\u306f\u5b9f\u884c\u6642\u306e\u52d5\u7684\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u3092\u907f\u3051\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u9759\u7684\u30c7\u30a3\u30b9\u30d1\u30c3\u30c1\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u7279\u306b\u3001\u5927\u898f\u6a21\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u91cd\u8981\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=\"\">public final class FastMath {\n    public static double sin(double a) {\n        \/\/ \u9ad8\u901f\u306a\u5b9f\u88c5\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-73\">\n<p>\u3053\u306e<code>FastMath<\/code>\u30af\u30e9\u30b9\u306f<code>final<\/code>\u3067\u3042\u308b\u305f\u3081\u3001JVM\u306f\u3053\u306e\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u547c\u3073\u51fa\u3057\u3092\u6700\u9069\u5316\u3057\u3001\u76f4\u63a5\u547c\u3073\u51fa\u3057\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-74\">\n<h3 class=\"wp-block-heading\" id=\"i-13\">3.2 \u4e26\u884c\u51e6\u7406\u306b\u304a\u3051\u308bfinal\u306e\u5f79\u5272\uff1a\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306e\u5411\u4e0a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-75\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u30de\u30eb\u30c1\u30b9\u30ec\u30c3\u30c9\u74b0\u5883\u3067\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3082\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u3068\u4f7f\u7528\u306b\u304a\u3044\u3066\u3001<code>final<\/code>\u306f\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-76\">\n<li><strong>\u5b89\u5168\u306a\u516c\u958b<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-77\">\n<p><code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6301\u3064\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u305d\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u5b8c\u4e86\u3057\u305f\u6642\u70b9\u3067\u5b89\u5168\u306b\u516c\u958b\u3055\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u534a\u521d\u671f\u5316\u72b6\u614b\u306e\u554f\u984c\u3092\u9632\u3050\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\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=\"\">public class SafeSharedObject {\n    private final int value;\n    private final String name;\n\n    public SafeSharedObject(int value, String name) {\n        this.value = value;\n        this.name = name;\n    }\n\n    \/\/ getter\u30e1\u30bd\u30c3\u30c9\n}<\/pre>\n\n\n<div id=\"sgb-css-id-78\">\n<p>\u3053\u306e<code>SafeSharedObject<\/code>\u306f\u3001\u4e00\u5ea6\u4f5c\u6210\u3055\u308c\u308b\u3068\u3001\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u4ed6\u306e\u30b9\u30ec\u30c3\u30c9\u304b\u3089\u5b89\u5168\u306b\u8aad\u307f\u53d6\u308c\u308b\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-79\">\n<li><strong>\u4e0d\u5909\u6027\u306e\u4fdd\u8a3c<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-80\">\n<p><code>final<\/code>\u3092\u4f7f\u7528\u3057\u3066\u4e0d\u5909\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30ec\u30c3\u30c9\u9593\u3067\u5b89\u5168\u306b\u5171\u6709\u3067\u304d\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u7c21\u5358\u306b\u4f5c\u6210\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 final class ImmutablePerson {\n    private final String name;\n    private final int age;\n\n    public ImmutablePerson(String name, int age) {\n        this.name = name;\n        this.age = age;\n    }\n\n    \/\/ getter\u30e1\u30bd\u30c3\u30c9\u306e\u307f\n}<\/pre>\n\n\n<div id=\"sgb-css-id-81\">\n<p>\u3053\u306e<code>ImmutablePerson<\/code>\u30af\u30e9\u30b9\u306f\u5b8c\u5168\u306b\u4e0d\u5909\u3067\u3042\u308a\u3001\u8907\u6570\u306e\u30b9\u30ec\u30c3\u30c9\u3067\u5b89\u5168\u306b\u5171\u6709\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-83\">\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-82\">\n<li><strong>\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u306e\u4fdd\u8a3c<\/strong><\/li>\n<\/div><\/ol>\n<\/div>\n\n<div id=\"sgb-css-id-84\">\n<p>Java\u30e1\u30e2\u30ea\u30e2\u30c7\u30eb\u306f\u3001<code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u7279\u5225\u306a\u4fdd\u8a3c\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u6b63\u3057\u304f\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u308b\u9650\u308a\u3001\u4ed6\u306e\u30b9\u30ec\u30c3\u30c9\u306f\u5e38\u306b\u305d\u306e\u6b63\u3057\u3044\u5024\u3092\u53c2\u7167\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=\"\">class FinalFieldExample {\n    final int x;\n    int y; \n    static FinalFieldExample f;\n\n    public FinalFieldExample() {\n        x = 3; \n        y = 4; \n    }\n\n    static void writer() {\n        f = new FinalFieldExample();\n    }\n\n    static void reader() {\n        if (f != null) {\n            int i = f.x;  \/\/ \u5e38\u306b3\n            int j = f.y;  \/\/ \u5fc5\u305a\u3057\u30824\u3067\u306f\u306a\u3044\n        }\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-85\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>x<\/code>\u306f<code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u306a\u306e\u3067\u3001<code>reader()<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u5e38\u306b\u6b63\u3057\u3044\u5024\uff083\uff09\u3092\u8aad\u307f\u53d6\u308a\u307e\u3059\u304c\u3001<code>y<\/code>\u306f\u305d\u3046\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-86\">\n<p><code>final<\/code>\u306e\u52b9\u679c\u7684\u306a\u4f7f\u7528\u306f\u3001\u5358\u306a\u308b\u69cb\u6587\u4e0a\u306e\u5236\u7d04\u3067\u306f\u306a\u304f\u3001\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002JVM\u306e\u6700\u9069\u5316\u3092\u4fc3\u9032\u3057\u3001\u4e26\u884c\u51e6\u7406\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u306b\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-87\">\n<h2 class=\"wp-block-heading\" id=\"i-14\">4. final\u306e\u843d\u3068\u3057\u7a74\u3068\u6ce8\u610f\u70b9\uff1a\u9069\u5207\u306a\u4f7f\u7528\u306e\u305f\u3081\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3059\u304c\u3001\u9069\u5207\u306b\u4f7f\u7528\u3057\u306a\u3044\u3068\u3001\u4e88\u671f\u305b\u306c\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>final<\/code>\u306e\u4f7f\u7528\u306b\u95a2\u3059\u308b\u6f5c\u5728\u7684\u306a\u843d\u3068\u3057\u7a74\u3068\u3001\u305d\u308c\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-89\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">4.1 \u904e\u5270\u306afinal\u4f7f\u7528\u306e\u5371\u967a\u6027\uff1a\u67d4\u8edf\u6027\u3068\u306e\u30d0\u30e9\u30f3\u30b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-90\">\n<p><code>final<\/code>\u306e\u904e\u5270\u306a\u4f7f\u7528\u306f\u3001\u30b3\u30fc\u30c9\u306e\u67d4\u8edf\u6027\u3092\u4f4e\u4e0b\u3055\u305b\u3001\u5c06\u6765\u306e\u62e1\u5f35\u3084\u5909\u66f4\u3092\u56f0\u96e3\u306b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-91\">\n<li><strong>\u7d99\u627f\u306e\u5236\u9650<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-92\">\n<p><code>final<\/code>\u30af\u30e9\u30b9\u306f\u7d99\u627f\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u62e1\u5f35\u6027\u304c\u5236\u9650\u3055\u308c\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 final class UserService {\n    \/\/ \u3053\u306e\u30af\u30e9\u30b9\u306f\u7d99\u627f\u3067\u304d\u306a\u3044\n}\n\n\/\/ \u4ee5\u4e0b\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\npublic class EnhancedUserService extends UserService {\n    \/\/ \u62e1\u5f35\u3067\u304d\u306a\u3044\n}<\/pre>\n\n\n<div id=\"sgb-css-id-93\">\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>UserService<\/code>\u3092\u62e1\u5f35\u3057\u305f\u3044\u30b1\u30fc\u30b9\u304c\u5c06\u6765\u7684\u306b\u767a\u751f\u3057\u3066\u3082\u3001\u305d\u308c\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-94\">\n<li><strong>\u30e2\u30c3\u30af\u30c6\u30b9\u30c8\u306e\u56f0\u96e3\u3055<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-95\">\n<p><code>final<\/code>\u30e1\u30bd\u30c3\u30c9\u306f\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30e2\u30c3\u30af\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u304c\u56f0\u96e3\u306b\u306a\u308b\u5834\u5408\u304c\u3042\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=\"\">public class DataProcessor {\n    public final void processData(Data data) {\n        \/\/ \u8907\u96d1\u306a\u51e6\u7406\n    }\n}\n\n\/\/ \u30c6\u30b9\u30c8\u30b3\u30fc\u30c9\npublic class DataProcessorTest {\n    @Test\n    public void testProcessData() {\n        \/\/ DataProcessor\u306e\u30e2\u30c3\u30af\u3092\u4f5c\u6210\u3057\u3088\u3046\u3068\u3057\u3066\u3082\u3001\n        \/\/ processData\u30e1\u30bd\u30c3\u30c9\u3092\u30e2\u30c3\u30af\u5316\u3067\u304d\u306a\u3044\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-96\">\n<p>\u3053\u306e\u5834\u5408\u3001<code>processData<\/code>\u30e1\u30bd\u30c3\u30c9\u3092\u30e2\u30c3\u30af\u5316\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u5358\u4f53\u30c6\u30b9\u30c8\u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol start=\"3\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-97\">\n<li><strong>\u8a2d\u8a08\u306e\u56fa\u5b9a\u5316<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-98\">\n<p>\u904e\u5270\u306b<code>final<\/code>\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8a2d\u8a08\u306e\u5909\u66f4\u304c\u56f0\u96e3\u306b\u306a\u308a\u3001\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u969c\u5bb3\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\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(--wp--preset--color--sango-main);color:#FFF\" class=\"sgb-box-simple__title\"><strong>\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u305f\u3081\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong><\/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-99\">\n<li>\u30af\u30e9\u30b9\u3092<code>final<\/code>\u306b\u3059\u308b\u524d\u306b\u3001\u305d\u306e\u30af\u30e9\u30b9\u304c\u672c\u5f53\u306b\u7d99\u627f\u3055\u308c\u308b\u3079\u304d\u3067\u306a\u3044\u304b\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-100\">\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u5fc5\u8981\u306a\u67d4\u8edf\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-101\">\n<li>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u3092\u8003\u616e\u3057\u3001\u91cd\u8981\u306a\u30e1\u30bd\u30c3\u30c9\u306f<code>final<\/code>\u306b\u3059\u308b\u524d\u306b\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-102\">\n<li>\u4e0d\u5909\u6027\u304c\u672c\u5f53\u306b\u5fc5\u8981\u306a\u5834\u5408\u306b\u306e\u307f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u3092<code>final<\/code>\u306b\u3059\u308b\u3002<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-103\">\n<h3 class=\"wp-block-heading\" id=\"i-16\">4.2 final\u3068\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\uff1a\u9069\u5207\u306a\u4f7f\u7528\u30b7\u30fc\u30f3\u306e\u898b\u6975\u3081<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-104\">\n<p><code>final<\/code>\u306e\u4f7f\u7528\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u6709\u52b9\u3067\u3059\u304c\u3001\u4ed6\u306e\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-105\">\n<li><strong>\u6709\u52b9\u306a\u30b1\u30fc\u30b9\uff1aSingleton \u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-106\">\n<p>Singleton\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001<code>final<\/code>\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u4e00\u610f\u6027\u3092\u4fdd\u8a3c\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 final class Singleton {\n    private static final Singleton INSTANCE = new Singleton();\n\n    private Singleton() {}\n\n    public static Singleton getInstance() {\n        return INSTANCE;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>final<\/code>\u30af\u30e9\u30b9\u3068<code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001Singleton\u306e\u4e0d\u5909\u6027\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-107\">\n<li><strong>\u6ce8\u610f\u304c\u5fc5\u8981\u306a\u30b1\u30fc\u30b9\uff1aTemplate Method \u30d1\u30bf\u30fc\u30f3<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-108\">\n<p>Template Method\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001<code>final<\/code>\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528\u306b\u6ce8\u610f\u304c\u5fc5\u8981\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=\"\">public abstract class AbstractClass {\n    public final void templateMethod() {\n        step1();\n        step2();\n        hook();\n    }\n\n    protected abstract void step1();\n    protected abstract void step2();\n    protected void hook() {} \/\/ \u30d5\u30c3\u30af\u30e1\u30bd\u30c3\u30c9\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>templateMethod<\/code>\u3092<code>final<\/code>\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u69cb\u9020\u3092\u56fa\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u308c\u306b\u3088\u308a\u67d4\u8edf\u6027\u304c\u5931\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n<div id=\"sgb-css-id-112\">\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\"><strong>\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3067\u306e <code>final<\/code> \u4f7f\u7528\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong><\/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-109\">\n<li>Immutable Object\u30d1\u30bf\u30fc\u30f3\u3084Value Object\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001<code>final<\/code>\u30af\u30e9\u30b9\u3068<code>final<\/code>\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u7a4d\u6975\u7684\u306b\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-110\">\n<li>Strategy\u30d1\u30bf\u30fc\u30f3\u3084Observer\u30d1\u30bf\u30fc\u30f3\u306a\u3069\u3001\u67d4\u8edf\u6027\u304c\u91cd\u8981\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001<code>final<\/code>\u306e\u4f7f\u7528\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-111\">\n<li>\u4f9d\u5b58\u6027\u6ce8\u5165\uff08DI\uff09\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001DI\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3068\u306e\u4e92\u63db\u6027\u3092\u8003\u616e\u3057\u3001<code>final<\/code>\u306e\u4f7f\u7528\u3092\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u3002<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-113\">\n<p>\u6700\u5f8c\u306b\u3001<code>final<\/code>\u306e\u9069\u5207\u306a\u4f7f\u7528\u306e\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u307e\u3068\u3081\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\">\u4e00\u822c\u7684\u306a\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-114\">\n<li>\u610f\u56f3\u3092\u660e\u78ba\u306b\uff1a<code>final<\/code>\u3092\u4f7f\u7528\u3059\u308b\u7406\u7531\u3092\u5e38\u306b\u610f\u8b58\u3057\u3001\u30b3\u30e1\u30f3\u30c8\u3067\u8aac\u660e\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-115\">\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u306ffinal\u3067\u306f\u306a\u3044\uff1a\u5fc5\u8981\u306a\u5834\u5408\u306b\u306e\u307f<code>final<\/code>\u3092\u4f7f\u7528\u3057\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3068\u3057\u306a\u3044\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-116\">\n<li>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6d3b\u7528\uff1a\u67d4\u8edf\u6027\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001<code>final<\/code>\u30af\u30e9\u30b9\u306e\u4ee3\u308f\u308a\u306b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<li>\u30c6\u30b9\u30c8\u5bb9\u6613\u6027\u306e\u8003\u616e\uff1a\u5358\u4f53\u30c6\u30b9\u30c8\u306e\u4f5c\u6210\u304c\u56f0\u96e3\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u6ce8\u610f\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-118\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3092\u7406\u89e3\uff1a<code>final<\/code>\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u628a\u63e1\u3057\u3001\u9069\u5207\u306b\u6d3b\u7528\u3059\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-119\">\n<li>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306e\u8003\u616e\uff1a\u5c06\u6765\u306e\u30b3\u30fc\u30c9\u5909\u66f4\u306e\u53ef\u80fd\u6027\u3092\u8003\u616e\u306b\u5165\u308c\u308b\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-120\">\n<p><code>final<\/code>\u306e\u4f7f\u7528\u306f\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u5411\u4e0a\u306b\u5927\u304d\u304f\u8ca2\u732e\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u4f7f\u7528\u306b\u306f\u614e\u91cd\u3055\u3068\u9069\u5207\u306a\u5224\u65ad\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u53c2\u8003\u306b\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u3068\u5c06\u6765\u306e\u62e1\u5f35\u6027\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308a\u306a\u304c\u3089\u3001<code>final<\/code>\u3092\u52b9\u679c\u7684\u306b\u6d3b\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-121\">\n<h2 class=\"wp-block-heading\" id=\"i-17\">5. Java\u958b\u767a\u8005\u306e\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\uff1afinal\u30de\u30b9\u30bf\u30fc\u304b\u3089\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-122\">\n<p><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u9069\u5207\u306a\u4f7f\u7528\u306f\u3001Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u57fa\u672c\u7684\u306a\u30b9\u30ad\u30eb\u306e\u4e00\u3064\u3067\u3059\u304c\u3001\u771f\u306e\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u306b\u306a\u308b\u305f\u3081\u306b\u306f\u3001\u3053\u308c\u3092\u8db3\u304c\u304b\u308a\u306b\u3055\u3089\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<code>final<\/code>\u306e\u77e5\u8b58\u3092\u6d3b\u304b\u3057\u3066\u3088\u308a\u9ad8\u5ea6\u306aJava\u958b\u767a\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u3001\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\u3059\u308b\u65b9\u6cd5\u3092\u63a2\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-123\">\n<h3 class=\"wp-block-heading\" id=\"i-18\">5.1 final\u3092\u6d3b\u7528\u3057\u305f\u30af\u30ea\u30fc\u30f3\u30b3\u30fc\u30c9\u4f5c\u6210\uff1a\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u4f8b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-124\">\n<p>\u30af\u30ea\u30fc\u30f3\u30b3\u30fc\u30c9\u306e\u539f\u5247\u3092\u7406\u89e3\u3057\u3001\u305d\u308c\u3092\u5b9f\u8df5\u3059\u308b\u3053\u3068\u306f\u3001\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306aJava\u958b\u767a\u8005\u3078\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002<code>final<\/code>\u306e\u9069\u5207\u306a\u4f7f\u7528\u306f\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u4e00\u3064\u306e\u8981\u7d20\u3067\u3059\u3002<\/p>\n<\/div>\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-125\">\n<li><strong>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u8a08<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-126\">\n<p>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u4e26\u884c\u51e6\u7406\u3084\u95a2\u6570\u578b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001<code>final<\/code>\u3092\u6d3b\u7528\u3057\u305f\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4f8b\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=\"\">public final class ImmutablePerson {\n    private final String name;\n    private final int age;\n    private final List&lt;String&gt; hobbies;\n\n    public ImmutablePerson(String name, int age, List&lt;String&gt; hobbies) {\n        this.name = name;\n        this.age = age;\n        this.hobbies = List.copyOf(hobbies); \/\/ \u4e0d\u5909\u306e\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\n    }\n\n    public String getName() { return name; }\n    public int getAge() { return age; }\n    public List&lt;String&gt; getHobbies() { return hobbies; } \/\/ \u4e0d\u5909\u306e\u30ea\u30b9\u30c8\u3092\u8fd4\u3059\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u30af\u30e9\u30b9\u306f\u5b8c\u5168\u306b\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u3067\u3042\u308a\u3001\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u3067\u4e88\u6e2c\u53ef\u80fd\u306a\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-127\">\n<li><strong>\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u306e\u6539\u5584<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-128\">\n<p><code>final<\/code>\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30e1\u30bd\u30c3\u30c9\u30d1\u30bf\u30fc\u30f3\u3092\u6539\u5584\u3057\u3001\u3088\u308a\u5b89\u5168\u3067\u52b9\u7387\u7684\u306a\u5b9f\u88c5\u3092\u884c\u3046\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 final class VehicleFactory {\n    private VehicleFactory() {} \/\/ \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u3092\u9632\u3050\n\n    public static final Vehicle createCar(String model) {\n        return new Car(model);\n    }\n\n    public static final Vehicle createBike(String model) {\n        return new Bike(model);\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-129\">\n<p>\u3053\u306e\u5b9f\u88c5\u3067\u306f\u3001<code>final<\/code>\u30af\u30e9\u30b9\u3068\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u306e\u52d5\u4f5c\u304c\u4e88\u6e2c\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-130\">\n<h3 class=\"wp-block-heading\" id=\"i-19\">5.2 \u9ad8\u5ea6\u306aJava\u8a00\u8a9e\u6a5f\u80fd\u306e\u63a2\u6c42\uff1a\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3001\u30e9\u30e0\u30c0\u5f0f\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<\/div>\n\n\n<p><code>final<\/code>\u306e\u77e5\u8b58\u3092\u57fa\u790e\u3068\u3057\u3066\u3001\u3088\u308a\u9ad8\u5ea6\u306aJava\u8a00\u8a9e\u6a5f\u80fd\u3092\u5b66\u3076\u3053\u3068\u3067\u3001\u3042\u306a\u305f\u306e\u30b9\u30ad\u30eb\u30bb\u30c3\u30c8\u3092\u62e1\u5927\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-131\">\n<li><strong>\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3068final<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-132\">\n<p>\u30b8\u30a7\u30cd\u30ea\u30af\u30b9\u3068<code>final<\/code>\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u578b\u5b89\u5168\u6027\u3068\u4e0d\u5909\u6027\u3092\u4e21\u7acb\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 final class Box&lt;T&gt; {\n    private final T content;\n\n    public Box(T content) {\n        this.content = content;\n    }\n\n    public T getContent() {\n        return content;\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u5b9f\u88c5\u3067\u306f\u3001<code>Box<\/code>\u30af\u30e9\u30b9\u306f<code>final<\/code>\u3067\u3042\u308a\u3001\u5185\u5bb9\u3082<code>final<\/code>\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u578b\u5b89\u5168\u3067\u4e0d\u5909\u306e\u30b3\u30f3\u30c6\u30ca\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list is-style-sango-list-simple\"><div id=\"sgb-css-id-133\">\n<li><strong>\u30e9\u30e0\u30c0\u5f0f\u3068final<\/strong><\/li>\n<\/div><\/ol>\n\n\n<div id=\"sgb-css-id-134\">\n<p>\u30e9\u30e0\u30c0\u5f0f\u3067\u306f\u3001\u5916\u90e8\u306efinal\uff08\u307e\u305f\u306f\u5b9f\u8cea\u7684\u306bfinal\uff09\u306a\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\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 LambdaExample {\n    public static void main(String[] args) {\n        final int multiplier = 2;\n        List&lt;Integer&gt; numbers = Arrays.asList(1, 2, 3, 4, 5);\n\n        numbers.stream()\n               .map(n -&gt; n * multiplier)\n               .forEach(System.out::println);\n    }\n}<\/pre>\n\n\n\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001<code>multiplier<\/code>\u304cfinal\u3067\u3042\u308b\u305f\u3081\u3001\u30e9\u30e0\u30c0\u5f0f\u5185\u3067\u5b89\u5168\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<div id=\"sgb-css-id-135\">\n<p>\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\u306e\u305f\u3081\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3092\u4ee5\u4e0b\u306b\u307e\u3068\u3081\u307e\u3057\u305f\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\">\u30ad\u30e3\u30ea\u30a2\u30a2\u30c3\u30d7\u306e\u305f\u3081\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/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-136\">\n<li><strong>\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u7406\u89e3<\/strong>\uff1a \u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3068\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u30d1\u30bf\u30fc\u30f3\u3092\u5b66\u3073\u3001\u5927\u898f\u6a21\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8a2d\u8a08\u80fd\u529b\u3092\u78e8\u304f\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-137\">\n<li><strong>\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u7fd2\u5f97<\/strong>\uff1a Spring Boot\u3001Hibernate\u3001Reactive\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\uff08\u4f8b\uff1aProject Reactor\uff09\u306a\u3069\u306e\u4e3b\u8981\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u5b66\u3076\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-138\">\n<li><strong>\u30c6\u30b9\u30c8\u99c6\u52d5\u958b\u767a\uff08TDD\uff09\u306e\u5b9f\u8df5<\/strong>\uff1a \u5358\u4f53\u30c6\u30b9\u30c8\u3068\u7d71\u5408\u30c6\u30b9\u30c8\u306e\u4f5c\u6210\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u3001\u54c1\u8cea\u306e\u9ad8\u3044\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u80fd\u529b\u3092\u78e8\u304f\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-139\">\n<li><strong>\u7d99\u7d9a\u7684\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\/\u7d99\u7d9a\u7684\u30c7\u30ea\u30d0\u30ea\u30fc\uff08CI\/CD\uff09\u306e\u7406\u89e3<\/strong>\uff1a GitLab CI\u3001Jenkins\u3001GitHub Actions\u306a\u3069\u306e\u30c4\u30fc\u30eb\u3092\u5b66\u3073\u3001\u81ea\u52d5\u5316\u30b9\u30ad\u30eb\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-140\">\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/strong>\uff1a JVM\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30ea\u30f3\u30b0\u3001\u30de\u30a4\u30af\u30ed\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306e\u5b9f\u65bd\u65b9\u6cd5\u3092\u5b66\u3076\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-141\">\n<li><strong>\u6700\u65b0\u306eJava\u6a5f\u80fd\u306e\u63a2\u6c42<\/strong>\uff1a Project Loom\u3001Project Amber\u3001Project Valhalla\u306a\u3069\u306e\u6700\u65b0\u306eJava\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30d5\u30a9\u30ed\u30fc\u3057\u3001\u8a00\u8a9e\u306e\u9032\u5316\u306b\u8ffd\u968f\u3059\u308b\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-142\">\n<p><code>final<\/code>\u306e\u7406\u89e3\u306f\u3001\u512a\u308c\u305fJava\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306b\u306a\u308b\u305f\u3081\u306e\u7b2c\u4e00\u6b69\u306b\u904e\u304e\u307e\u305b\u3093\u3002\u3053\u308c\u3089\u306e\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u53d6\u308a\u7d44\u3080\u3053\u3068\u3067\u3001\u3088\u308a\u6df1\u3044\u6280\u8853\u7684\u77e5\u8b58\u3092\u7372\u5f97\u3057\u3001\u30ad\u30e3\u30ea\u30a2\u306e\u65b0\u305f\u306a\u53ef\u80fd\u6027\u3092\u958b\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002\u5e38\u306b\u5b66\u3073\u7d9a\u3051\u3001\u65b0\u3057\u3044\u6311\u6226\u3092\u6c42\u3081\u308b\u59ff\u52e2\u304c\u3001\u6210\u529f\u3059\u308bJava\u958b\u767a\u8005\u3078\u306e\u9053\u3092\u5207\u308a\u958b\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-143\">\n<h2 class=\"wp-block-heading\" id=\"i-20\">\u307e\u3068\u3081\u3068\u7d50\u8ad6<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-144\">\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001Java\u306b\u304a\u3051\u308b<code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u91cd\u8981\u6027\u3068\u9069\u5207\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002<code>final<\/code>\u306f\u5358\u306a\u308b\u6587\u6cd5\u7684\u306a\u8981\u7d20\u3067\u306f\u306a\u304f\u3001\u30b3\u30fc\u30c9\u306e\u54c1\u8cea\u3001\u5b89\u5168\u6027\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3053\u3068\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-145\">\n<p>\u4e3b\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u3063\u3066\u307f\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>final<\/code>\u5229\u7528\u306e\u30dd\u30a4\u30f3\u30c8<\/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-146\">\n<li><code>final<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u3001\u5909\u6570\u3001\u30e1\u30bd\u30c3\u30c9\u3001\u30af\u30e9\u30b9\u306b\u9069\u7528\u3067\u304d\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-147\">\n<li>\u9069\u5207\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u306e\u5b89\u5168\u6027\u3001\u53ef\u8aad\u6027\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-148\">\n<li>JVM\u306e\u6700\u9069\u5316\u3084\u30b9\u30ec\u30c3\u30c9\u30bb\u30fc\u30d5\u30c6\u30a3\u306e\u5411\u4e0a\u306b\u3082\u8ca2\u732e\u3057\u307e\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-149\">\n<li>\u904e\u5270\u306a\u4f7f\u7528\u306f\u907f\u3051\u3001\u67d4\u8edf\u6027\u3068\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-150\">\n<li><code>final<\/code>\u306e\u77e5\u8b58\u306f\u3001\u3088\u308a\u9ad8\u5ea6\u306aJava\u958b\u767a\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u305f\u3081\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/div><\/ol>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-151\">\n<p><code>final<\/code>\u306e\u9069\u5207\u306a\u4f7f\u7528\u306b\u95a2\u3059\u308b\u4e3b\u8981\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u5e38\u306b\u5ff5\u982d\u306b\u7f6e\u3044\u3066\u304f\u3060\u3055\u3044\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\">\u9069\u5207\u306a\u4f7f\u7528\u306b\u95a2\u3059\u308b\u4e3b\u8981\u306a\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<ul class=\"wp-block-list\"><div id=\"sgb-css-id-152\">\n<li>\u5fc5\u8981\u306a\u5834\u5408\u306b\u306e\u307f<code>final<\/code>\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-153\">\n<li>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u8a2d\u8a08\u306b\u6d3b\u7528\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-154\">\n<li>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u6700\u9069\u5316\u306e\u624b\u6bb5\u3068\u3057\u3066\u8003\u616e\u3059\u308b<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-155\">\n<li>\u30c6\u30b9\u30c8\u306e\u5bb9\u6613\u6027\u3092\u5e38\u306b\u610f\u8b58\u3059\u308b<\/li>\n<\/div><\/ul>\n<\/div><\/div>\n\n\n<div id=\"sgb-css-id-156\">\n<p><code>final<\/code>\u306e\u7406\u89e3\u306f\u3001\u512a\u308c\u305fJava\u958b\u767a\u8005\u306b\u306a\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u304c\u3001\u3053\u3053\u3067\u6e80\u8db3\u305b\u305a\u306b\u7d99\u7d9a\u7684\u306a\u5b66\u7fd2\u3092\u5fc3\u304c\u3051\u307e\u3057\u3087\u3046\u3002\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u3001\u30af\u30ea\u30fc\u30f3\u30b3\u30fc\u30c9\u306e\u539f\u5247\u3001\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3001\u6700\u65b0\u306eJava\u8a00\u8a9e\u6a5f\u80fd\u306a\u3069\u306e\u5b66\u7fd2\u306b\u53d6\u308a\u7d44\u3080\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-157\">\n<p>Java\u8a00\u8a9e\u306f\u5e38\u306b\u9032\u5316\u3057\u3066\u304a\u308a\u3001<code>final<\/code>\u306e\u91cd\u8981\u6027\u3082\u5909\u308f\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u6700\u65b0\u306eJava\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\uff08\u4f8b\uff1aProject Amber\u3001Project Valhalla\uff09\u3092\u30d5\u30a9\u30ed\u30fc\u3057\u3001\u8a00\u8a9e\u306e\u9032\u5316\u306b\u8ffd\u968f\u3059\u308b\u3053\u3068\u3067\u3001\u3042\u306a\u305f\u306e\u30b9\u30ad\u30eb\u30bb\u30c3\u30c8\u3092\u5e38\u306b\u6700\u65b0\u306b\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-158\">\n<p>\u6700\u5f8c\u306b\u3001\u3053\u306e\u8a18\u4e8b\u3067\u5b66\u3093\u3060\u5185\u5bb9\u3092\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u7a4d\u6975\u7684\u306b\u9069\u7528\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u7406\u8ad6\u3068\u5b9f\u8df5\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u771f\u306e\u7406\u89e3\u3068\u6210\u9577\u304c\u5f97\u3089\u308c\u307e\u3059\u3002Java\u306e\u4e16\u754c\u306f\u5e83\u5927\u3067\u53ef\u80fd\u6027\u306b\u6e80\u3061\u3066\u3044\u307e\u3059\u3002<code>final<\/code>\u306e\u77e5\u8b58\u3092\u8db3\u304c\u304b\u308a\u306b\u3001\u3055\u3089\u306a\u308b\u9ad8\u307f\u3092\u76ee\u6307\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n\n\n<p>\u3042\u306a\u305f\u306eJava\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u3001<code>final<\/code>\u7684\u306b\u7d20\u6674\u3089\u3057\u3044\u3082\u306e\u306b\u306a\u308b\u3053\u3068\u3092\u9858\u3063\u3066\u3044\u307e\u3059\uff01<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3042\u306a\u305f\u306f\u81ea\u4fe1\u3092\u6301\u3063\u3066\u300cfinal\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u5b8c\u5168\u306b\u7406\u89e3\u3057\u3001\u9069\u5207\u306b\u4f7f\u3044\u3053\u306a\u3057\u3066\u3044\u308b\u300d\u3068\u8a00\u3048\u307e\u3059\u304b\uff1f Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001final\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u975e\u5e38\u306b\u5f37\u529b\u3067\u3042\u308a\u306a\u304c\u3089\u3001\u3057\u3070\u3057\u3070\u8aa4\u89e3\u3055\u308c\u3001\u305d\u306e\u771f\u306e\u529b\u304c\u6d3b\u304b\u3055\u308c\u3066\u3044\u306a &#8230; <\/p>\n","protected":false},"author":1,"featured_media":3069,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,72,66],"tags":[],"class_list":{"0":"post-247","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\/247","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=247"}],"version-history":[{"count":2,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/247\/revisions"}],"predecessor-version":[{"id":253,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/posts\/247\/revisions\/253"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=\/wp\/v2\/media\/3069"}],"wp:attachment":[{"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dexall.co.jp\/articles\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}