{"id":576,"date":"2024-11-12T14:26:49","date_gmt":"2024-11-12T05:26:49","guid":{"rendered":"https:\/\/dexall.co.jp\/articles\/?p=576"},"modified":"2025-03-24T08:53:02","modified_gmt":"2025-03-23T23:53:02","slug":"java-%e3%82%b3%e3%83%b3%e3%83%91%e3%82%a4%e3%83%ab%e3%81%ae%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89%ef%bc%9a%e5%88%9d%e5%bf%83%e8%80%85%e3%81%a7%e3%82%82%e3%82%8f%e3%81%8b%e3%82%8b5%e3%81%a4","status":"publish","type":"post","link":"https:\/\/dexall.co.jp\/articles\/?p=576","title":{"rendered":"Java \u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b5\u3064\u306e\u57fa\u790e\u77e5\u8b58\u3068\u5b9f\u8df5\u30c6\u30af\u30cb\u30c3\u30af"},"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\">\u306f\u3058\u3081\u306b<\/a>  <\/li>  <li>    <a href=\"#i-1\">\uff11\uff0eJava\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u77e5\u8b58<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-2\">1.1 \u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u306f\u4f55\u304b\uff1a\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3078\u306e\u5909\u63db\u30d7\u30ed\u30bb\u30b9<\/a>      <\/li>      <li>        <a href=\"#i-4\">1.2 \u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u5fc5\u8981\u306a\u7406\u7531\uff1aJava\u5b9f\u884c\u306e\u4ed5\u7d44\u307f<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-5\">1.3 JDK\u3068JRE\u306e\u9055\u3044\uff1a\u958b\u767a\u306b\u5fc5\u8981\u306a\u74b0\u5883\u3092\u7406\u89e3\u3059\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-10\">\uff12\uff0e\u5b9f\u8df5\uff01Java\u30d5\u30a1\u30a4\u30eb\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u624b\u9806<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-11\">2.1 \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306ejavac\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9<\/a>      <\/li>      <li>        <a href=\"#i-15\">2.2 \u8907\u6570\u306e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4e00\u62ec\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-19\">2.3 \u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a\u3068\u4f9d\u5b58\u95a2\u4fc2\u306e\u89e3\u6c7a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-24\">\uff13\uff0eIDE\u3092\u4f7f\u3063\u305f\u30b9\u30de\u30fc\u30c8\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u65b9\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-25\">3.1 Eclipse\u3067\u306eJava\u30b3\u30f3\u30d1\u30a4\u30eb\u8a2d\u5b9a\u3068\u5b9f\u884c<\/a>      <\/li>      <li>        <a href=\"#i-29\">3.2 IntelliJ IDEA\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u30d3\u30eb\u30c9\u65b9\u6cd5<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-33\">3.3 VS Code\u3067Java\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u624b\u9806<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-39\">\uff14\uff0e\u3088\u304f\u3042\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u6cd5<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-40\">4.1 \u69cb\u6587\u30a8\u30e9\u30fc\uff1a\u898b\u843d\u3068\u3057\u304c\u3061\u306a\u6587\u6cd5\u30df\u30b9\u306e\u5bfe\u51e6\u6cd5<\/a>      <\/li>      <li>        <a href=\"#i-45\">4.2 \u30af\u30e9\u30b9\u304c\u898b\u3064\u304b\u3089\u306a\u3044\uff1a\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u95a2\u4fc2<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-49\">4.3 \u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\uff1a\u7570\u306a\u308bJava\u30d0\u30fc\u30b8\u30e7\u30f3\u9593\u306e\u554f\u984c\u89e3\u6c7a<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-54\">\uff15\uff0e\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u6700\u9069\u5316\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-55\">5.1 \u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u305f\u81ea\u52d5\u5316\uff1aMaven\/Gradle\u306e\u6d3b\u7528<\/a>      <\/li>      <li>        <a href=\"#i-59\">5.2 \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-63\">5.3 \u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u74b0\u5883\u306b\u5411\u3051\u305f\u30b3\u30f3\u30d1\u30a4\u30eb\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a<\/a>      <\/li>    <\/ul>  <\/li>  <li class=\"last\">    <a href=\"#i-69\">\u307e\u3068\u3081\uff1aJava\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-70\">\u3053\u306e\u8a18\u4e8b\u306e\u304a\u3055\u3089\u3044<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-71\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/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\">\u306f\u3058\u3081\u306b<\/h2>\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\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u6700\u3082\u57fa\u672c\u7684\u304b\u3064\u91cd\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u306e1\u3064\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Java\u521d\u5fc3\u8005\u304b\u3089\u4e2d\u7d1a\u8005\u307e\u3067\u3001\u8ab0\u3082\u304c\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067\u3092\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-7\">\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<ul class=\"wp-block-list\"><div id=\"sgb-css-id-3\">\n<li>Java\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u3068\u5fc5\u8981\u6027<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-4\">\n<li>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u65b9\u6cd5\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4f7f\u3044\u65b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-5\">\n<li>\u5404\u7a2eIDE\u3092\u4f7f\u7528\u3057\u305f\u52b9\u7387\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u624b\u6cd5<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-6\">\n<li>\u3088\u304f\u3042\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u65b9\u6cd5<\/li>\n<\/div>\n\n\n<li>\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u958b\u767a\u73fe\u5834\u3067\u306e\u6700\u9069\u5316\u30c6\u30af\u30cb\u30c3\u30af<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-12\">\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\">\u5bfe\u8c61\u8aad\u8005<\/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>Java\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3073\u59cb\u3081\u305f\u65b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-9\">\n<li>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u306b\u4e0d\u5b89\u304c\u3042\u308b\u65b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-10\">\n<li>IDE\u3067\u306e\u958b\u767a\u74b0\u5883\u3092\u6574\u5099\u3057\u305f\u3044\u65b9<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-11\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3067\u56f0\u3063\u3066\u3044\u308b\u65b9<\/li>\n<\/div>\n\n\n<li>\u30d3\u30eb\u30c9\u30d7\u30ed\u30bb\u30b9\u3092\u6700\u9069\u5316\u3057\u305f\u3044\u958b\u767a\u8005\u306e\u65b9<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-13\">\n<p>\u305d\u308c\u3067\u306f\u3001Java\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af\u307e\u3067\u3001\u9806\u3092\u8ffd\u3063\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-14\">\n<h2 class=\"wp-block-heading\" id=\"i-1\">\uff11\uff0eJava\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u77e5\u8b58<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-15\">\n<h3 class=\"wp-block-heading\" id=\"i-2\">1.1 \u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u306f\u4f55\u304b\uff1a\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3078\u306e\u5909\u63db\u30d7\u30ed\u30bb\u30b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-16\">\n<p>Java\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u306f\u3001\u4eba\u9593\u304c\u66f8\u3044\u305f\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\uff08.java\u30d5\u30a1\u30a4\u30eb\uff09\u3092\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u5b9f\u884c\u3067\u304d\u308b\u5f62\u5f0f\u306e\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\uff08.class\u30d5\u30a1\u30a4\u30eb\uff09\u306b\u5909\u63db\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u4ee5\u4e0b\u306e\u6d41\u308c\u3067\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-17\">\n<p><strong>1. \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\uff08.java\uff09\u306e\u4f5c\u6210<\/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=\"\">   \/\/ Hello.java\n   public class Hello {\n       public static void main(String[] args) {\n           System.out.println(\"Hello, World!\");\n       }\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-18\">\n<p><strong>2. \u30b3\u30f3\u30d1\u30a4\u30e9\uff08javac\uff09\u306b\u3088\u308b\u5909\u63db<\/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=\"\">   javac Hello.java  # Hello.class\u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b<\/pre>\n\n\n<div id=\"sgb-css-id-19\">\n<p><strong>3. \u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\uff08.class\uff09\u306e\u751f\u6210<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-20\">\n<p>\u3000\u25cf \u4e2d\u9593\u8a00\u8a9e\u3068\u3057\u3066\u7279\u6b8a\u306a\u547d\u4ee4\u30bb\u30c3\u30c8\u306b\u5909\u63db<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-21\">\n<p>\u3000\u25cf \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306b\u4f9d\u5b58\u3057\u306a\u3044\u5f62\u5f0f<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-22\">\n<p>\u3000\u25cf JVM\u304c\u89e3\u91c8\u53ef\u80fd\u306a\u5f62\u5f0f<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-23\">\n<h4 class=\"wp-block-heading\" id=\"i-3\">\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u7279\u5fb4<\/h4>\n<\/div>\n\n<div id=\"id-89d89361-9377-4230-9e9f-ffbd0362f5b5\"><div id=\"sgb-css-id-24\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u9805\u76ee<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u5b9f\u884c\u30bf\u30a4\u30df\u30f3\u30b0<\/td><td>\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u524d\u306b\u5fc5\u8981<\/td><\/tr><tr><td>\u51fa\u529b\u5f62\u5f0f<\/td><td>\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\uff08.class\u30d5\u30a1\u30a4\u30eb\uff09<\/td><\/tr><tr><td>\u5b9f\u884c\u74b0\u5883<\/td><td>\u3069\u306e\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3082\u540c\u3058\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u751f\u6210<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af<\/td><td>\u6587\u6cd5\u30a8\u30e9\u30fc\u3092\u4e8b\u524d\u306b\u691c\u51fa\u53ef\u80fd<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-25\">\n<h3 class=\"wp-block-heading\" id=\"i-4\">1.2 \u30b3\u30f3\u30d1\u30a4\u30eb\u304c\u5fc5\u8981\u306a\u7406\u7531\uff1aJava\u5b9f\u884c\u306e\u4ed5\u7d44\u307f<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-26\">\n<p>Java\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u5b9f\u884c\u3055\u308c\u308b\u969b\u306e\u6d41\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u5fc5\u8981\u6027\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-27\">\n<p><strong>1. \u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u5bfe\u5fdc<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-28\">\n<p>\u3000\u25cf \u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306f\u4e2d\u9593\u8a00\u8a9e\u306e\u305f\u3081\u3001\u7570\u306a\u308bOS\u9593\u3067\u79fb\u690d\u53ef\u80fd<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-29\">\n<p>\u3000\u25cf \u201cWrite Once, Run Anywhere\u201d \u306e\u5b9f\u73fe<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-30\">\n<p><strong>2. \u5b9f\u884c\u52b9\u7387\u306e\u5411\u4e0a<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-31\">\n<p>\u3000\u25cf \u4e8b\u524d\u306b\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u5b9f\u884c\u6642\u306e\u51e6\u7406\u3092\u8efd\u6e1b<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-32\">\n<p>\u3000\u25cf JIT\u30b3\u30f3\u30d1\u30a4\u30e9\u306b\u3088\u308b\u6700\u9069\u5316\u304c\u53ef\u80fd<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-33\">\n<p><strong>3. \u30a8\u30e9\u30fc\u691c\u51fa\u306e\u65e9\u671f\u5316<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-34\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u6587\u6cd5\u30a8\u30e9\u30fc\u3092\u691c\u51fa<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-35\">\n<p>\u3000\u25cf \u5b9f\u884c\u524d\u306b\u30d0\u30b0\u3092\u767a\u898b\u53ef\u80fd<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-36\">\n<h3 class=\"wp-block-heading\" id=\"i-5\">1.3 JDK\u3068JRE\u306e\u9055\u3044\uff1a\u958b\u767a\u306b\u5fc5\u8981\u306a\u74b0\u5883\u3092\u7406\u89e3\u3059\u308b<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-37\">\n<h4 class=\"wp-block-heading\" id=\"i-6\">JDK\uff08Java Development Kit\uff09<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-38\">\n<p>\u958b\u767a\u8005\u5411\u3051\u306e\u5b8c\u5168\u306aJava\u958b\u767a\u74b0\u5883\u3067\u3059\u3002<\/p>\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\">\u4e3b\u306a\u69cb\u6210\u8981\u7d20<\/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-39\">\n<li>\u30b3\u30f3\u30d1\u30a4\u30e9\uff08javac\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-40\">\n<li>\u30c7\u30d0\u30c3\u30ac\uff08jdb\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-41\">\n<li>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\u30c4\u30fc\u30eb\uff08javadoc\uff09<\/li>\n<\/div>\n\n\n<li>\u305d\u306e\u4ed6\u958b\u767a\u30c4\u30fc\u30eb\u7fa4<\/li>\n<\/ul>\n<\/div><\/div>\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=\"\"># JDK\u306e\u57fa\u672c\u7684\u306a\u30b3\u30de\u30f3\u30c9\u4f8b\njavac Main.java    # \u30b3\u30f3\u30d1\u30a4\u30eb\njavadoc Main.java  # \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u751f\u6210\njar cvf app.jar *  # JAR\u30d5\u30a1\u30a4\u30eb\u4f5c\u6210<\/pre>\n\n\n<div id=\"sgb-css-id-43\">\n<h4 class=\"wp-block-heading\" id=\"i-7\">JRE\uff08Java Runtime Environment\uff09<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-44\">\n<p>Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u884c\u306b\u5fc5\u8981\u306a\u6700\u5c0f\u9650\u306e\u74b0\u5883\u3067\u3059\u3002<\/p>\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\">\u4e3b\u306a\u69cb\u6210\u8981\u7d20<\/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-45\">\n<li>Java\u4eee\u60f3\u30de\u30b7\u30f3\uff08JVM\uff09<\/li>\n<\/div>\n\n<div id=\"sgb-css-id-46\">\n<li>\u6a19\u6e96\u30af\u30e9\u30b9\u30e9\u30a4\u30d6\u30e9\u30ea<\/li>\n<\/div>\n\n\n<li>\u5b9f\u884c\u6642\u306b\u5fc5\u8981\u306a\u30d5\u30a1\u30a4\u30eb<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div>\n\n<div id=\"sgb-css-id-48\">\n<h4 class=\"wp-block-heading\" id=\"i-8\">\u6bd4\u8f03\u8868<\/h4>\n<\/div>\n\n<div id=\"id-7ae7baa5-9637-4859-a061-3f16f93c78df\"><div id=\"sgb-css-id-49\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>JDK<\/th><th>JRE<\/th><\/tr><\/thead><tbody><tr><td>Java\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c<\/td><td>\u2713<\/td><td>\u2713<\/td><\/tr><tr><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u6a5f\u80fd<\/td><td>\u2713<\/td><td>\u00d7<\/td><\/tr><tr><td>\u958b\u767a\u30c4\u30fc\u30eb<\/td><td>\u2713<\/td><td>\u00d7<\/td><\/tr><tr><td>\u30c7\u30d0\u30c3\u30b0\u6a5f\u80fd<\/td><td>\u2713<\/td><td>\u00d7<\/td><\/tr><tr><td>\u5fc5\u8981\u306a\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf<\/td><td>\u5927<\/td><td>\u5c0f<\/td><\/tr><tr><td>\u4e3b\u306a\u30e6\u30fc\u30b6\u30fc<\/td><td>\u958b\u767a\u8005<\/td><td>\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-50\">\n<h4 class=\"wp-block-heading\" id=\"i-9\">\u958b\u767a\u74b0\u5883\u306e\u9078\u629e<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-51\">\n<p><strong>1. \u958b\u767a\u8005\u306e\u5834\u5408<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-52\">\n<p>\u3000\u25cf JDK\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff08\u30b3\u30f3\u30d1\u30a4\u30eb\u3084\u958b\u767a\u306b\u5fc5\u8981\uff09<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-53\">\n<p>\u3000\u25cf \u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6700\u65b0\u306eLTS\uff08Long Term Support\uff09\u3092\u63a8\u5968<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-54\">\n<p><strong>2. \u4e00\u822c\u30e6\u30fc\u30b6\u30fc\u306e\u5834\u5408<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-55\">\n<p>\u3000\u25cf JRE\u306e\u307f\u3067\u5341\u5206\uff08\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5b9f\u884c\u306e\u307f\uff09<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-56\">\n<p>\u3000\u25cf \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u306b\u5408\u308f\u305b\u305f\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u9078\u629e<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-57\">\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Java\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u30d7\u30ed\u30bb\u30b9\u3068\u5b9f\u884c\u74b0\u5883\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u7387\u7684\u306a\u958b\u767a\u306e\u7b2c\u4e00\u6b69\u3068\u306a\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u74b0\u5883\u3092\u9078\u629e\u3057\u3001\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u4ed5\u7d44\u307f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u78ba\u5b9f\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-58\">\n<h2 class=\"wp-block-heading\" id=\"i-10\">\uff12\uff0e\u5b9f\u8df5\uff01Java\u30d5\u30a1\u30a4\u30eb\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u624b\u9806<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-59\">\n<h3 class=\"wp-block-heading\" id=\"i-11\">2.1 \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306ejavac\u30b3\u30de\u30f3\u30c9\u306e\u4f7f\u3044\u65b9<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-60\">\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306eJava\u30b3\u30f3\u30d1\u30a4\u30eb\u306f\u3001\u958b\u767a\u306e\u57fa\u790e\u3068\u306a\u308b\u91cd\u8981\u306a\u30b9\u30ad\u30eb\u3067\u3059\u3002\u4ee5\u4e0b\u3067\u5177\u4f53\u7684\u306a\u624b\u9806\u3068\u4f7f\u7528\u4f8b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-61\">\n<h4 class=\"wp-block-heading\" id=\"i-12\">\u57fa\u672c\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u30b3\u30de\u30f3\u30c9<\/h4>\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=\"\"># \u5358\u4e00\u30d5\u30a1\u30a4\u30eb\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\njavac HelloWorld.java\n\n# \u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u5b9f\u884c\njavac HelloWorld.java\njava HelloWorld<\/pre>\n\n\n<div id=\"sgb-css-id-62\">\n<h4 class=\"wp-block-heading\" id=\"i-13\">\u3088\u304f\u4f7f\u7528\u3059\u308bjavac\u30aa\u30d7\u30b7\u30e7\u30f3<\/h4>\n<\/div>\n\n<div id=\"id-71e6eda4-c029-45a3-818b-1f2426939606\"><div id=\"sgb-css-id-63\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30aa\u30d7\u30b7\u30e7\u30f3<\/th><th>\u8aac\u660e<\/th><th>\u4f7f\u7528\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>-d<\/td><td>\u30af\u30e9\u30b9\u30d5\u30a1\u30a4\u30eb\u306e\u51fa\u529b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u6307\u5b9a<\/td><td><code>javac -d bin HelloWorld.java<\/code><\/td><\/tr><tr><td>-source<\/td><td>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6307\u5b9a<\/td><td><code>javac -source 11 HelloWorld.java<\/code><\/td><\/tr><tr><td>-target<\/td><td>\u751f\u6210\u3059\u308b\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6307\u5b9a<\/td><td><code>javac -target 11 HelloWorld.java<\/code><\/td><\/tr><tr><td>-encoding<\/td><td>\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u306e\u6587\u5b57\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6307\u5b9a<\/td><td><code>javac -encoding UTF-8 HelloWorld.java<\/code><\/td><\/tr><tr><td>-verbose<\/td><td>\u30b3\u30f3\u30d1\u30a4\u30eb\u51e6\u7406\u306e\u8a73\u7d30\u3092\u8868\u793a<\/td><td><code>javac -verbose HelloWorld.java<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-64\">\n<h4 class=\"wp-block-heading\" id=\"i-14\">\u5b9f\u8df5\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u4f8b<\/h4>\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=\"\">\/\/ Calculator.java\npublic class Calculator {\n    public int add(int a, int b) {\n        return a + b;\n    }\n}\n\n\/\/ CalculatorTest.java\npublic class CalculatorTest {\n    public static void main(String[] args) {\n        Calculator calc = new Calculator();\n        System.out.println(\"1 + 2 = \" + calc.add(1, 2));\n    }\n}<\/pre>\n\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=\"\"># \u4e21\u65b9\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\njavac Calculator.java CalculatorTest.java\n\n# \u5b9f\u884c\njava CalculatorTest<\/pre>\n\n\n<div id=\"sgb-css-id-65\">\n<h3 class=\"wp-block-heading\" id=\"i-15\">2.2 \u8907\u6570\u306e\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4e00\u62ec\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-66\">\n<h4 class=\"wp-block-heading\" id=\"i-16\">\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30f3\u30d1\u30a4\u30eb<\/h4>\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=\"\"># \u30ab\u30ec\u30f3\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u5168Java\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\njavac *.java\n\n# \u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u542b\u3080\u5168Java\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\uff08Windows\uff09\njavac src\\*.java src\\util\\*.java\n\n# \u30b5\u30d6\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u542b\u3080\u5168Java\u30d5\u30a1\u30a4\u30eb\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\uff08Unix\/Linux\uff09\njavac src\/*.java src\/util\/*.java<\/pre>\n\n\n<div id=\"sgb-css-id-67\">\n<h4 class=\"wp-block-heading\" id=\"i-17\">\u30d5\u30a1\u30a4\u30eb\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30f3\u30d1\u30a4\u30eb<\/h4>\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=\"\"># sources.txt\u30d5\u30a1\u30a4\u30eb\u306e\u4f5c\u6210\ndir \/s \/B *.java &gt; sources.txt  # Windows\nfind . -name \"*.java\" &gt; sources.txt  # Unix\/Linux\n\n# \u30d5\u30a1\u30a4\u30eb\u30ea\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30f3\u30d1\u30a4\u30eb\njavac @sources.txt<\/pre>\n\n\n<div id=\"sgb-css-id-68\">\n<h4 class=\"wp-block-heading\" id=\"i-18\">\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u542b\u3080\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f8b<\/h4>\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=\"\">\/\/ src\/com\/example\/model\/User.java\npackage com.example.model;\n\npublic class User {\n    private String name;\n\n    public User(String name) {\n        this.name = name;\n    }\n\n    public String getName() {\n        return name;\n    }\n}\n\n\/\/ src\/com\/example\/Main.java\npackage com.example;\n\nimport com.example.model.User;\n\npublic class Main {\n    public static void main(String[] args) {\n        User user = new User(\"John\");\n        System.out.println(\"Hello, \" + user.getName());\n    }\n}<\/pre>\n\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=\"\"># \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30eb\u30fc\u30c8\u304b\u3089\u30b3\u30f3\u30d1\u30a4\u30eb\njavac -d bin src\/com\/example\/*.java src\/com\/example\/model\/*.java<\/pre>\n\n\n<div id=\"sgb-css-id-69\">\n<h3 class=\"wp-block-heading\" id=\"i-19\">2.3 \u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a\u3068\u4f9d\u5b58\u95a2\u4fc2\u306e\u89e3\u6c7a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-70\">\n<h4 class=\"wp-block-heading\" id=\"i-20\">\u30af\u30e9\u30b9\u30d1\u30b9\u3068\u306f<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-71\">\n<p>\u30af\u30e9\u30b9\u30d1\u30b9\u306f\u3001JVM\u3084\u30b3\u30f3\u30d1\u30a4\u30e9\u304c\u30af\u30e9\u30b9\u3084\u30ea\u30bd\u30fc\u30b9\u3092\u63a2\u3059\u969b\u306b\u53c2\u7167\u3059\u308b\u30d1\u30b9\u306e\u30ea\u30b9\u30c8\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-72\">\n<h4 class=\"wp-block-heading\" id=\"i-21\">\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h4>\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=\"\"># Windows\u3067\u306e\u30af\u30e9\u30b9\u30d1\u30b9\u8a2d\u5b9a\nset CLASSPATH=.;lib\\dependency1.jar;lib\\dependency2.jar\n\n# Unix\/Linux\u3067\u306e\u30af\u30e9\u30b9\u30d1\u30b9\u8a2d\u5b9a\nexport CLASSPATH=.:lib\/dependency1.jar:lib\/dependency2.jar\n\n# \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u30af\u30e9\u30b9\u30d1\u30b9\u6307\u5b9a\njavac -cp lib\/dependency1.jar:lib\/dependency2.jar MyClass.java<\/pre>\n\n\n<div id=\"sgb-css-id-73\">\n<h4 class=\"wp-block-heading\" id=\"i-22\">\u5916\u90e8\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3059\u308b\u4f8b<\/h4>\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=\"\">\/\/ ExternalLibDemo.java\nimport org.json.JSONObject;\n\npublic class ExternalLibDemo {\n    public static void main(String[] args) {\n        JSONObject json = new JSONObject();\n        json.put(\"name\", \"John\");\n        System.out.println(json.toString());\n    }\n}<\/pre>\n\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=\"\"># json-org\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\njavac -cp lib\/json-org.jar ExternalLibDemo.java\n\n# \u5b9f\u884c\u6642\u3082\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u6307\u5b9a\u304c\u5fc5\u8981\njava -cp \"lib\/json-org.jar;.\" ExternalLibDemo<\/pre>\n\n\n<div id=\"sgb-css-id-74\">\n<h4 class=\"wp-block-heading\" id=\"i-23\">\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\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=\"\">project\/\n\u251c\u2500\u2500 src\/\n\u2502   \u2514\u2500\u2500 com\/\n\u2502       \u2514\u2500\u2500 example\/\n\u2502           \u251c\u2500\u2500 Main.java\n\u2502           \u2514\u2500\u2500 model\/\n\u2502               \u2514\u2500\u2500 User.java\n\u251c\u2500\u2500 lib\/\n\u2502   \u251c\u2500\u2500 dependency1.jar\n\u2502   \u2514\u2500\u2500 dependency2.jar\n\u2514\u2500\u2500 bin\/\n    \u2514\u2500\u2500 com\/\n        \u2514\u2500\u2500 example\/\n            \u251c\u2500\u2500 Main.class\n            \u2514\u2500\u2500 model\/\n                \u2514\u2500\u2500 User.class<\/pre>\n\n\n<div id=\"sgb-css-id-75\">\n<p>\u3053\u306e\u3088\u3046\u306a\u69cb\u9020\u3067\u958b\u767a\u3092\u884c\u3046\u969b\u306e\u63a8\u5968\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\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=\"\"># \u30b3\u30f3\u30d1\u30a4\u30eb\uff08bin\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u51fa\u529b\uff09\njavac -d bin -cp \"lib\/*\" src\/com\/example\/**\/*.java\n\n# \u5b9f\u884c\njava -cp \"bin;lib\/*\" com.example.Main<\/pre>\n\n\n<div id=\"sgb-css-id-76\">\n<p>\u3053\u308c\u3089\u306e\u624b\u9806\u3068\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u52b9\u7387\u7684\u306aJava\u958b\u767a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u9069\u5207\u306a\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a\u3068\u4f9d\u5b58\u95a2\u4fc2\u306e\u7ba1\u7406\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-77\">\n<h2 class=\"wp-block-heading\" id=\"i-24\">\uff13\uff0eIDE\u3092\u4f7f\u3063\u305f\u30b9\u30de\u30fc\u30c8\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u65b9\u6cd5<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-78\">\n<h3 class=\"wp-block-heading\" id=\"i-25\">3.1 Eclipse\u3067\u306eJava\u30b3\u30f3\u30d1\u30a4\u30eb\u8a2d\u5b9a\u3068\u5b9f\u884c<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-79\">\n<h4 class=\"wp-block-heading\" id=\"i-26\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u3068\u57fa\u672c\u8a2d\u5b9a<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-80\">\n<p><strong>1. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u4f5c\u6210<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-81\">\n<p>\u3000\u25cf File \u2192 New \u2192 Java Project<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-82\">\n<p>\u3000\u25cf \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u306e\u5165\u529b<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-83\">\n<p>\u3000\u25cf JDK\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u9078\u629e<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-84\">\n<p><strong>2. \u30b3\u30f3\u30d1\u30a4\u30e9\u8a2d\u5b9a<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-85\">\n<p>\u3000\u25cf Window \u2192 Preferences \u2192 Java \u2192 Compiler<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-86\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30e9\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u30ec\u30d9\u30eb\u306e\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-87\">\n<p>\u3000\u25cf \u30a8\u30e9\u30fc\/\u8b66\u544a\u306e\u8a2d\u5b9a\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-88\">\n<h4 class=\"wp-block-heading\" id=\"i-27\">\u30d3\u30eb\u30c9\u306e\u81ea\u52d5\u5316\u8a2d\u5b9a<\/h4>\n<\/div>\n\n<div id=\"id-96dcce32-186e-484a-877d-c2e78d4d08c3\"><div id=\"sgb-css-id-89\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u8a2d\u5b9a\u9805\u76ee<\/th><th>\u8aac\u660e<\/th><th>\u63a8\u5968\u8a2d\u5b9a<\/th><\/tr><\/thead><tbody><tr><td>Build Automatically<\/td><td>\u81ea\u52d5\u30d3\u30eb\u30c9\u306e\u6709\u52b9\u5316<\/td><td>\u2713 \u30aa\u30f3<\/td><\/tr><tr><td>Save Automatically<\/td><td>\u4fdd\u5b58\u6642\u306e\u81ea\u52d5\u30d3\u30eb\u30c9<\/td><td>\u2713 \u30aa\u30f3<\/td><\/tr><tr><td>Organize Imports<\/td><td>\u30a4\u30f3\u30dd\u30fc\u30c8\u306e\u81ea\u52d5\u6574\u7406<\/td><td>\u2713 \u30aa\u30f3<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-90\">\n<h4 class=\"wp-block-heading\" id=\"i-28\">\u3088\u304f\u4f7f\u3046\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u30ad\u30fc<\/h4>\n<\/div>\n\n<div id=\"id-30ae553f-566a-40b1-9798-9b2693ea0c25\"><div id=\"sgb-css-id-91\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>Windows<\/th><th>Mac<\/th><\/tr><\/thead><tbody><tr><td>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30d3\u30eb\u30c9<\/td><td>Ctrl + B<\/td><td>Cmd + B<\/td><\/tr><tr><td>\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5b9f\u884c<\/td><td>Ctrl + F11<\/td><td>Cmd + F11<\/td><\/tr><tr><td>\u30a8\u30e9\u30fc\u306e\u5373\u6642\u4fee\u6b63<\/td><td>Ctrl + 1<\/td><td>Cmd + 1<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-92\">\n<h3 class=\"wp-block-heading\" id=\"i-29\">3.2 IntelliJ IDEA\u3092\u4f7f\u3063\u305f\u52b9\u7387\u7684\u306a\u30d3\u30eb\u30c9\u65b9\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-93\">\n<h4 class=\"wp-block-heading\" id=\"i-30\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u69cb\u6210\u306e\u6700\u9069\u5316<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-94\">\n<p><strong>1. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u69cb\u9020\u306e\u8a2d\u5b9a<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-95\">\n<p>\u3000\u25cf File \u2192 New \u2192 Java Project<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-96\">\n<p>\u3000\u25cf Modules, Libraries, SDKs\u306e\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-97\">\n<p><strong>2. \u30d3\u30eb\u30c9\u8a2d\u5b9a\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-98\">\n<p>\u3000\u25cf Settings \u2192 Build, Execution, Deployment<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-99\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30e9\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-100\">\n<h4 class=\"wp-block-heading\" id=\"i-31\">\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u306e\u7d71\u5408<\/h4>\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=\"\">&lt;!-- pom.xml \u306e\u4f8b --&gt;\n&lt;build&gt;\n    &lt;plugins&gt;\n        &lt;plugin&gt;\n            &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n            &lt;artifactId&gt;maven-compiler-plugin&lt;\/artifactId&gt;\n            &lt;version&gt;3.8.1&lt;\/version&gt;\n            &lt;configuration&gt;\n                &lt;source&gt;11&lt;\/source&gt;\n                &lt;target&gt;11&lt;\/target&gt;\n            &lt;\/configuration&gt;\n        &lt;\/plugin&gt;\n    &lt;\/plugins&gt;\n&lt;\/build&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-101\">\n<h4 class=\"wp-block-heading\" id=\"i-32\">\u30d1\u30ef\u30d5\u30eb\u306a\u6a5f\u80fd<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-102\">\n<p>\u3000\u25cf \u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb\u30b3\u30f3\u30d1\u30a4\u30eb<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-103\">\n<p>\u3000\u25cf \u30db\u30c3\u30c8\u30b9\u30ef\u30c3\u30d7\u5bfe\u5fdc<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-104\">\n<p>\u3000\u25cf \u30c7\u30d0\u30c3\u30b0\u30e2\u30fc\u30c9\u3067\u306e\u30b3\u30f3\u30d1\u30a4\u30eb<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-105\">\n<h3 class=\"wp-block-heading\" id=\"i-33\">3.3 VS Code\u3067Java\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u624b\u9806<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-106\">\n<h4 class=\"wp-block-heading\" id=\"i-34\">\u5fc5\u8981\u306a\u62e1\u5f35\u6a5f\u80fd<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-107\">\n<p>\u3000\u25cf Extension Pack for Java<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-108\">\n<p>\u3000\u25cf Spring Boot Extension Pack\uff08\u5fc5\u8981\u306b\u5fdc\u3058\u3066\uff09<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-109\">\n<p>\u3000\u25cf Maven for Java\uff08\u5fc5\u8981\u306b\u5fdc\u3058\u3066\uff09<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-110\">\n<h4 class=\"wp-block-heading\" id=\"i-35\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u8a2d\u5b9a<\/h4>\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=\"\">\/\/ settings.json\n{\n    \"java.home\": \"C:\\\\Program Files\\\\Java\\\\jdk-11\",\n    \"java.project.sourcePaths\": [\"src\"],\n    \"java.project.outputPath\": \"bin\",\n    \"java.project.referencedLibraries\": [\n        \"lib\/**\/*.jar\"\n    ]\n}<\/pre>\n\n\n<div id=\"sgb-css-id-111\">\n<h4 class=\"wp-block-heading\" id=\"i-36\">\u30d3\u30eb\u30c9\u3068\u30c7\u30d0\u30c3\u30b0\u306e\u8a2d\u5b9a<\/h4>\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=\"\">\/\/ launch.json\n{\n    \"version\": \"0.2.0\",\n    \"configurations\": [\n        {\n            \"type\": \"java\",\n            \"name\": \"Debug (Launch)\",\n            \"request\": \"launch\",\n            \"mainClass\": \"com.example.Main\",\n            \"projectName\": \"MyProject\"\n        }\n    ]\n}<\/pre>\n\n\n<div id=\"sgb-css-id-112\">\n<h4 class=\"wp-block-heading\" id=\"i-37\">IDE\u5225\u306e\u7279\u5fb4\u6bd4\u8f03<\/h4>\n<\/div>\n\n<div id=\"id-79537eb2-e0d7-48de-bb34-e9f039abec1a\"><div id=\"sgb-css-id-113\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>Eclipse<\/th><th>IntelliJ IDEA<\/th><th>VS Code<\/th><\/tr><\/thead><tbody><tr><td>\u81ea\u52d5\u30b3\u30f3\u30d1\u30a4\u30eb<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><\/tr><tr><td>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30a8\u30e9\u30fc\u691c\u51fa<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><\/tr><tr><td>\u30c7\u30d0\u30c3\u30b0\u6a5f\u80fd<\/td><td>\u2713<\/td><td>\u2713<\/td><td>\u2713<\/td><\/tr><tr><td>\u30e1\u30e2\u30ea\u4f7f\u7528\u91cf<\/td><td>\u4e2d<\/td><td>\u9ad8<\/td><td>\u4f4e<\/td><\/tr><tr><td>\u8d77\u52d5\u901f\u5ea6<\/td><td>\u4e2d<\/td><td>\u9045\u3044<\/td><td>\u901f\u3044<\/td><\/tr><tr><td>\u62e1\u5f35\u6027<\/td><td>\u9ad8<\/td><td>\u9ad8<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-114\">\n<h4 class=\"wp-block-heading\" id=\"i-38\">IDE\u3067\u306e\u52b9\u7387\u7684\u306a\u958b\u767a\u306e\u305f\u3081\u306eTips<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-115\">\n<p>1. <strong>\u30b3\u30fc\u30c9\u88dc\u5b8c\u306e\u6d3b\u7528<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-116\">\n<p>\u3000\u25cf Eclipse\u306e\u5834\u5408\uff1aCtrl + Space<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-117\">\n<p>\u3000\u25cf IntelliJ\u306e\u5834\u5408\uff1aCtrl + Space<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-118\">\n<p>\u3000\u25cf VS Code\u306e\u5834\u5408\uff1aCtrl + Space<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-119\">\n<p>2. <strong>\u30a8\u30e9\u30fc\u89e3\u6c7a\u306e\u52b9\u7387\u5316<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-120\">\n<p>\u3000\u25cf \u30af\u30a4\u30c3\u30af\u30d5\u30a3\u30c3\u30af\u30b9\u6a5f\u80fd\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-121\">\n<p>\u3000\u25cf \u63d0\u6848\u3055\u308c\u305f\u4fee\u6b63\u306e\u9069\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-122\">\n<p>\u3000\u25cf \u30a8\u30e9\u30fc\u30de\u30fc\u30ab\u30fc\u306e\u78ba\u8a8d<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-123\">\n<p>3. <strong>\u30d3\u30eb\u30c9\u8a2d\u5b9a\u306e\u6700\u9069\u5316<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-124\">\n<p>\u3000\u25cf \u5fc5\u8981\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u8ffd\u52a0<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-125\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30e9\u8b66\u544a\u30ec\u30d9\u30eb\u306e\u8abf\u6574<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-126\">\n<p>\u3000\u25cf \u51fa\u529b\u30d1\u30b9\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-127\">\n<p>\u3053\u308c\u3089\u306eIDE\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306e\u624b\u52d5\u30b3\u30f3\u30d1\u30a4\u30eb\u3088\u308a\u3082\u52b9\u7387\u7684\u306a\u958b\u767a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001IDE\u306e\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u751f\u7523\u6027\u304c\u5927\u5e45\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-128\">\n<h2 class=\"wp-block-heading\" id=\"i-39\">\uff14\uff0e\u3088\u304f\u3042\u308b\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3068\u305d\u306e\u89e3\u6c7a\u6cd5<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-129\">\n<h3 class=\"wp-block-heading\" id=\"i-40\">4.1 \u69cb\u6587\u30a8\u30e9\u30fc\uff1a\u898b\u843d\u3068\u3057\u304c\u3061\u306a\u6587\u6cd5\u30df\u30b9\u306e\u5bfe\u51e6\u6cd5<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-130\">\n<h4 class=\"wp-block-heading\" id=\"i-41\">1. \u30bb\u30df\u30b3\u30ed\u30f3\u306e\u6b20\u843d<\/h4>\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=\"\">\/\/ \u30a8\u30e9\u30fc\u306e\u4f8b\npublic class Example {\n    public void method() {\n        System.out.println(\"Hello\")    \/\/ \u30bb\u30df\u30b3\u30ed\u30f3\u304c missing\n    }\n}\n\n\/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\n\/\/ ';' expected<\/pre>\n\n\n<div id=\"sgb-css-id-131\">\n<h4 class=\"wp-block-heading\" id=\"i-42\">2. \u62ec\u5f27\u306e\u4e0d\u4e00\u81f4<\/h4>\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=\"\">\/\/ \u30a8\u30e9\u30fc\u306e\u4f8b\npublic class Example {\n    public void method() {\n        if (condition {    \/\/ \u62ec\u5f27\u304c\u4e0d\u5b8c\u5168\n            \/\/ \u51e6\u7406\n        }\n}\n\n\/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\n\/\/ ')' expected<\/pre>\n\n\n<div id=\"sgb-css-id-132\">\n<h4 class=\"wp-block-heading\" id=\"i-43\">3. \u30e1\u30bd\u30c3\u30c9\u5ba3\u8a00\u306e\u8aa4\u308a<\/h4>\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=\"\">\/\/ \u30a8\u30e9\u30fc\u306e\u4f8b\npublic void method {    \/\/ \u62ec\u5f27\u304c\u6b20\u843d\n    \/\/ \u51e6\u7406\n}\n\n\/\/ \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\n\/\/ '(' expected<\/pre>\n\n\n<div id=\"sgb-css-id-133\">\n<h4 class=\"wp-block-heading\" id=\"i-44\">\u3088\u304f\u3042\u308b\u69cb\u6587\u30a8\u30e9\u30fc\u3068\u89e3\u6c7a\u7b56<\/h4>\n<\/div>\n\n<div id=\"id-ce59b237-798c-43cc-b469-68248f5105b9\"><div id=\"sgb-css-id-134\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30a8\u30e9\u30fc\u306e\u7a2e\u985e<\/th><th>\u4f8b<\/th><th>\u89e3\u6c7a\u7b56<\/th><\/tr><\/thead><tbody><tr><td>\u30bb\u30df\u30b3\u30ed\u30f3\u306e\u6b20\u843d<\/td><td><code>int x = 5<\/code><\/td><td>\u6587\u672b\u306b\u30bb\u30df\u30b3\u30ed\u30f3\u3092\u8ffd\u52a0<\/td><\/tr><tr><td>\u62ec\u5f27\u306e\u4e0d\u4e00\u81f4<\/td><td><code>if (x &gt; 0 {<\/code><\/td><td>\u958b\u304d\u62ec\u5f27\u3068\u9589\u3058\u62ec\u5f27\u3092\u5bfe\u5fdc\u3055\u305b\u308b<\/td><\/tr><tr><td>\u30a2\u30af\u30bb\u30b9\u4fee\u98fe\u5b50\u306e\u8aa4\u308a<\/td><td><code>void public method()<\/code><\/td><td>\u4fee\u98fe\u5b50\u306e\u9806\u5e8f\u3092\u6b63\u3057\u304f\u4fee\u6b63<\/td><\/tr><tr><td>\u5909\u6570\u5ba3\u8a00\u306e\u91cd\u8907<\/td><td>\u540c\u3058\u30b9\u30b3\u30fc\u30d7\u3067\u540c\u540d\u306e\u5909\u6570\u3092\u5ba3\u8a00<\/td><td>\u5909\u6570\u540d\u3092\u5909\u66f4\u3059\u308b\u304b\u3001\u30b9\u30b3\u30fc\u30d7\u3092\u8abf\u6574<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-135\">\n<h3 class=\"wp-block-heading\" id=\"i-45\">4.2 \u30af\u30e9\u30b9\u304c\u898b\u3064\u304b\u3089\u306a\u3044\uff1a\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u95a2\u4fc2<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-136\">\n<h4 class=\"wp-block-heading\" id=\"i-46\">1. \u30af\u30e9\u30b9\u30d1\u30b9\u306e\u554f\u984c<\/h4>\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=\"\">\/\/ Main.java\u304csrc\/com\/example\/\u306b\u3042\u308b\u5834\u5408\npackage com.example;\n\npublic class Main {\n    public static void main(String[] args) {\n        Helper helper = new Helper();  \/\/ Helper.java\u304c\u898b\u3064\u304b\u3089\u306a\u3044\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-137\">\n<p>\u89e3\u6c7a\u7b56\uff1a<\/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=\"\"># \u6b63\u3057\u3044\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a\njavac -cp src src\/com\/example\/*.java<\/pre>\n\n\n<div id=\"sgb-css-id-138\">\n<h4 class=\"wp-block-heading\" id=\"i-47\">2. \u30d1\u30c3\u30b1\u30fc\u30b8\u5ba3\u8a00\u306e\u554f\u984c<\/h4>\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=\"\">\/\/ \u8aa4\u3063\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u69cb\u9020\n\/\/ \u30d5\u30a1\u30a4\u30eb\u5834\u6240: src\/com\/example\/Main.java\npackage com.test;  \/\/ \u8aa4\u3063\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u5ba3\u8a00\n\npublic class Main {\n    \/\/ ...\n}<\/pre>\n\n\n<div id=\"sgb-css-id-139\">\n<h4 class=\"wp-block-heading\" id=\"i-48\">\u30d1\u30c3\u30b1\u30fc\u30b8\u3068\u30af\u30e9\u30b9\u30d1\u30b9\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-140\">\n<p><strong>1. \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u306e\u78ba\u8a8d<\/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=\"\">   src\/\n   \u251c\u2500\u2500 com\/\n   \u2502   \u2514\u2500\u2500 example\/\n   \u2502       \u251c\u2500\u2500 Main.java\n   \u2502       \u2514\u2500\u2500 Helper.java<\/pre>\n\n\n<div id=\"sgb-css-id-141\">\n<p><strong>2. \u30d1\u30c3\u30b1\u30fc\u30b8\u5ba3\u8a00\u306e\u78ba\u8a8d<\/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=\"\">   package com.example;  \/\/ \u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020\u3068\u4e00\u81f4\u3055\u305b\u308b<\/pre>\n\n\n<div id=\"sgb-css-id-142\">\n<p><strong>3. \u30af\u30e9\u30b9\u30d1\u30b9\u306e\u8a2d\u5b9a<\/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=\"\">   export CLASSPATH=.\/src  # Unix\/Linux\n   set CLASSPATH=.\\src     # Windows<\/pre>\n\n\n<div id=\"sgb-css-id-143\">\n<h3 class=\"wp-block-heading\" id=\"i-49\">4.3 \u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\uff1a\u7570\u306a\u308bJava\u30d0\u30fc\u30b8\u30e7\u30f3\u9593\u306e\u554f\u984c\u89e3\u6c7a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-144\">\n<h4 class=\"wp-block-heading\" id=\"i-50\">1. \u30bd\u30fc\u30b9\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u30bf\u30fc\u30b2\u30c3\u30c8\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e0d\u4e00\u81f4<\/h4>\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=\"\">\/\/ Java 14\u306e\u6a5f\u80fd\u3092\u4f7f\u7528\npublic class VersionTest {\n    record Point(int x, int y) {}  \/\/ Java 14\u4ee5\u964d\u306e\u6a5f\u80fd\n}<\/pre>\n\n\n<div id=\"sgb-css-id-145\">\n<p>\u89e3\u6c7a\u7b56\uff1a<\/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=\"\"># \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6307\u5b9a\njavac --source 14 --target 14 VersionTest.java<\/pre>\n\n\n<div id=\"sgb-css-id-146\">\n<h4 class=\"wp-block-heading\" id=\"i-51\">2. \u975e\u4e92\u63db\u6a5f\u80fd\u306e\u4f7f\u7528<\/h4>\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=\"\">\/\/ Java 8\u3067var\u4f7f\u7528\uff08Java 10\u4ee5\u964d\u306e\u6a5f\u80fd\uff09\npublic class TypeInference {\n    public void method() {\n        var x = 10;  \/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\n    }\n}<\/pre>\n\n\n<div id=\"sgb-css-id-147\">\n<h4 class=\"wp-block-heading\" id=\"i-52\">\u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\u306e\u5bfe\u51e6\u65b9\u6cd5<\/h4>\n<\/div>\n\n<div id=\"id-08c29e01-0e6b-4fc0-8408-33e4804ccf4d\"><div id=\"sgb-css-id-148\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u554f\u984c<\/th><th>\u75c7\u72b6<\/th><th>\u89e3\u6c7a\u7b56<\/th><\/tr><\/thead><tbody><tr><td>\u4e0a\u4f4d\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u6a5f\u80fd\u4f7f\u7528<\/td><td>invalid source release<\/td><td>\u9069\u5207\u306aJDK\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u4f7f\u7528<\/td><\/tr><tr><td>API\u975e\u4e92\u63db<\/td><td>cannot find symbol<\/td><td>\u4e92\u63db\u6027\u306e\u3042\u308bAPI\u3092\u4f7f\u7528<\/td><\/tr><tr><td>\u30e2\u30b8\u30e5\u30fc\u30eb\u95a2\u9023<\/td><td>module not found<\/td><td>module-info.java\u306e\u8ffd\u52a0\u30fb\u4fee\u6b63<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-149\">\n<h4 class=\"wp-block-heading\" id=\"i-53\">\u30d0\u30fc\u30b8\u30e7\u30f3\u9593\u306e\u79fb\u884c\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-150\">\n<p><strong>1. \u6bb5\u968e\u7684\u306a\u79fb\u884c<\/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=\"\">   &lt;!-- pom.xml\u3067\u306e\u8a2d\u5b9a\u4f8b --&gt;\n   &lt;properties&gt;\n       &lt;maven.compiler.source&gt;11&lt;\/maven.compiler.source&gt;\n       &lt;maven.compiler.target&gt;11&lt;\/maven.compiler.target&gt;\n   &lt;\/properties&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-151\">\n<p><strong>2. \u4e92\u63db\u6027\u30c1\u30a7\u30c3\u30af<\/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=\"\">   # \u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\u306e\u30c1\u30a7\u30c3\u30af\n   javac -Xlint:deprecation -Xlint:unchecked Main.java<\/pre>\n\n\n<div id=\"sgb-css-id-152\">\n<p><strong>3. \u975e\u63a8\u5968API\u5bfe\u7b56<\/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=\"\">   @SuppressWarnings(\"deprecation\")  \/\/ \u5fc5\u8981\u306a\u5834\u5408\u306e\u307f\u4f7f\u7528\n   public class LegacyCode {\n       \/\/ \u975e\u63a8\u5968API\u3092\u4f7f\u7528\u3059\u308b\u30b3\u30fc\u30c9\n   }<\/pre>\n\n\n<div id=\"sgb-css-id-153\">\n<p>\u3053\u308c\u3089\u306e\u30a8\u30e9\u30fc\u306b\u906d\u9047\u3057\u305f\u5834\u5408\u306f\u3001\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6ce8\u610f\u6df1\u304f\u8aad\u307f\u3001\u4e0a\u8a18\u306e\u89e3\u6c7a\u7b56\u3092\u53c2\u8003\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u591a\u304f\u306e\u554f\u984c\u3092\u52b9\u7387\u7684\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u4e88\u9632\u7684\u306a\u5bfe\u7b56\u3068\u3057\u3066\u3001IDE\u306e\u8b66\u544a\u6a5f\u80fd\u3092\u6d3b\u7528\u3057\u3001\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-154\">\n<h2 class=\"wp-block-heading\" id=\"i-54\">\uff15\uff0e\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u6700\u9069\u5316\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-155\">\n<h3 class=\"wp-block-heading\" id=\"i-55\">5.1 \u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u305f\u81ea\u52d5\u5316\uff1aMaven\/Gradle\u306e\u6d3b\u7528<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-156\">\n<h4 class=\"wp-block-heading\" id=\"i-56\">Maven\u306b\u3088\u308b\u30d3\u30eb\u30c9\u81ea\u52d5\u5316<\/h4>\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=\"\">&lt;!-- pom.xml \u306e\u57fa\u672c\u8a2d\u5b9a --&gt;\n&lt;project&gt;\n    &lt;modelVersion&gt;4.0.0&lt;\/modelVersion&gt;\n    &lt;groupId&gt;com.example&lt;\/groupId&gt;\n    &lt;artifactId&gt;my-project&lt;\/artifactId&gt;\n    &lt;version&gt;1.0-SNAPSHOT&lt;\/version&gt;\n\n    &lt;properties&gt;\n        &lt;maven.compiler.source&gt;11&lt;\/maven.compiler.source&gt;\n        &lt;maven.compiler.target&gt;11&lt;\/maven.compiler.target&gt;\n        &lt;project.build.sourceEncoding&gt;UTF-8&lt;\/project.build.sourceEncoding&gt;\n    &lt;\/properties&gt;\n\n    &lt;dependencies&gt;\n        &lt;!-- \u4f9d\u5b58\u95a2\u4fc2\u306e\u5b9a\u7fa9 --&gt;\n    &lt;\/dependencies&gt;\n\n    &lt;build&gt;\n        &lt;plugins&gt;\n            &lt;plugin&gt;\n                &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n                &lt;artifactId&gt;maven-compiler-plugin&lt;\/artifactId&gt;\n                &lt;version&gt;3.8.1&lt;\/version&gt;\n                &lt;configuration&gt;\n                    &lt;source&gt;11&lt;\/source&gt;\n                    &lt;target&gt;11&lt;\/target&gt;\n                    &lt;compilerArgs&gt;\n                        &lt;arg&gt;-Xlint:all&lt;\/arg&gt;\n                    &lt;\/compilerArgs&gt;\n                &lt;\/configuration&gt;\n            &lt;\/plugin&gt;\n        &lt;\/plugins&gt;\n    &lt;\/build&gt;\n&lt;\/project&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-157\">\n<h4 class=\"wp-block-heading\" id=\"i-57\">Gradle\u306b\u3088\u308b\u30d3\u30eb\u30c9\u81ea\u52d5\u5316<\/h4>\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=\"\">\/\/ build.gradle\nplugins {\n    id 'java'\n}\n\nsourceCompatibility = '11'\ntargetCompatibility = '11'\n\nrepositories {\n    mavenCentral()\n}\n\ndependencies {\n    \/\/ \u4f9d\u5b58\u95a2\u4fc2\u306e\u5b9a\u7fa9\n}\n\ntasks.withType(JavaCompile) {\n    options.encoding = 'UTF-8'\n    options.compilerArgs += ['-Xlint:all']\n}<\/pre>\n\n\n<div id=\"sgb-css-id-158\">\n<h4 class=\"wp-block-heading\" id=\"i-58\">\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u6bd4\u8f03\u8868<\/h4>\n<\/div>\n\n<div id=\"id-a4e9d973-0224-4f72-bdfa-d1bfda3abe54\"><div id=\"sgb-css-id-159\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6a5f\u80fd<\/th><th>Maven<\/th><th>Gradle<\/th><\/tr><\/thead><tbody><tr><td>\u30d3\u30eb\u30c9\u5b9a\u7fa9<\/td><td>XML<\/td><td>Groovy\/Kotlin<\/td><\/tr><tr><td>\u30d3\u30eb\u30c9\u901f\u5ea6<\/td><td>\u666e\u901a<\/td><td>\u9ad8\u901f<\/td><\/tr><tr><td>\u30ad\u30e3\u30c3\u30b7\u30e5\u6a5f\u80fd<\/td><td>\u57fa\u672c\u7684<\/td><td>\u9ad8\u5ea6<\/td><\/tr><tr><td>\u30d7\u30e9\u30b0\u30a4\u30f3<\/td><td>\u8c4a\u5bcc<\/td><td>\u8c4a\u5bcc<\/td><\/tr><tr><td>\u5b66\u7fd2\u66f2\u7dda<\/td><td>\u7de9\u3084\u304b<\/td><td>\u3084\u3084\u6025<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-160\">\n<h3 class=\"wp-block-heading\" id=\"i-59\">5.2 \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593\u3092\u77ed\u7e2e\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-161\">\n<h4 class=\"wp-block-heading\" id=\"i-60\">1. \u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u6d3b\u7528<\/h4>\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=\"\">\/\/ Gradle\u3067\u306e\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30bf\u30eb\u30b3\u30f3\u30d1\u30a4\u30eb\u8a2d\u5b9a\ntasks.withType(JavaCompile) {\n    options.incremental = true\n}<\/pre>\n\n\n<div id=\"sgb-css-id-162\">\n<h4 class=\"wp-block-heading\" id=\"i-61\">2. \u30d1\u30e9\u30ec\u30eb\u30d3\u30eb\u30c9\u306e\u8a2d\u5b9a<\/h4>\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=\"\"># Maven\u3067\u306e\u30d1\u30e9\u30ec\u30eb\u30d3\u30eb\u30c9\nmvn -T 4 clean install  # 4\u30b9\u30ec\u30c3\u30c9\u3067\u5b9f\u884c\n\n# Gradle\u3067\u306e\u30d1\u30e9\u30ec\u30eb\u30d3\u30eb\u30c9\ngradle build --parallel<\/pre>\n\n\n<div id=\"sgb-css-id-163\">\n<h4 class=\"wp-block-heading\" id=\"i-62\">3. \u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6700\u9069\u5316<\/h4>\n<\/div>\n\n<div id=\"id-e4bbe049-81aa-4dff-982d-e5018eb64395\"><div id=\"sgb-css-id-164\">\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6700\u9069\u5316\u30dd\u30a4\u30f3\u30c8<\/th><th>\u8aac\u660e<\/th><th>\u5b9f\u88c5\u65b9\u6cd5<\/th><\/tr><\/thead><tbody><tr><td>\u30ed\u30fc\u30ab\u30eb\u30ad\u30e3\u30c3\u30b7\u30e5<\/td><td>\u30d3\u30eb\u30c9\u7d50\u679c\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/td><td><code>gradle --build-cache<\/code><\/td><\/tr><tr><td>\u4f9d\u5b58\u95a2\u4fc2\u30ad\u30e3\u30c3\u30b7\u30e5<\/td><td>\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30ad\u30e3\u30c3\u30b7\u30e5<\/td><td>\u30ea\u30dd\u30b8\u30c8\u30ea\u30df\u30e9\u30fc\u306e\u4f7f\u7528<\/td><\/tr><tr><td>\u30b3\u30f3\u30d1\u30a4\u30e9\u30c7\u30fc\u30e2\u30f3<\/td><td>JVM\u306e\u518d\u8d77\u52d5\u3092\u9632\u3050<\/td><td><code>gradle --daemon<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div><\/div>\n\n<div id=\"sgb-css-id-165\">\n<h3 class=\"wp-block-heading\" id=\"i-63\">5.3 \u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u74b0\u5883\u306b\u5411\u3051\u305f\u30b3\u30f3\u30d1\u30a4\u30eb\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-166\">\n<h4 class=\"wp-block-heading\" id=\"i-64\">1. \u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3<\/h4>\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=\"\">&lt;!-- Maven\u3067\u306e\u6700\u9069\u5316\u8a2d\u5b9a --&gt;\n&lt;plugin&gt;\n    &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n    &lt;artifactId&gt;maven-compiler-plugin&lt;\/artifactId&gt;\n    &lt;configuration&gt;\n        &lt;optimize&gt;true&lt;\/optimize&gt;\n        &lt;debug&gt;false&lt;\/debug&gt;\n        &lt;compilerArgs&gt;\n            &lt;arg&gt;-Xlint:all&lt;\/arg&gt;\n            &lt;arg&gt;-Xmx2g&lt;\/arg&gt;\n        &lt;\/compilerArgs&gt;\n    &lt;\/configuration&gt;\n&lt;\/plugin&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-167\">\n<h4 class=\"wp-block-heading\" id=\"i-65\">2. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u30aa\u30d7\u30b7\u30e7\u30f3<\/h4>\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=\"\"># \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30c1\u30a7\u30c3\u30af\u306e\u6709\u52b9\u5316\njavac -Xlint:all -Werror Main.java<\/pre>\n\n\n<div id=\"sgb-css-id-168\">\n<h4 class=\"wp-block-heading\" id=\"i-66\">3. \u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u5411\u3051\u30d3\u30eb\u30c9\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb<\/h4>\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=\"\">&lt;!-- Maven \u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u8a2d\u5b9a --&gt;\n&lt;profiles&gt;\n    &lt;profile&gt;\n        &lt;id&gt;production&lt;\/id&gt;\n        &lt;properties&gt;\n            &lt;maven.compiler.debug&gt;false&lt;\/maven.compiler.debug&gt;\n            &lt;maven.compiler.optimize&gt;true&lt;\/maven.compiler.optimize&gt;\n        &lt;\/properties&gt;\n    &lt;\/profile&gt;\n&lt;\/profiles&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-169\">\n<h4 class=\"wp-block-heading\" id=\"i-67\">\u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u5411\u3051\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-170\">\n<p><strong>1. \u30b3\u30fc\u30c9\u54c1\u8cea\u30c1\u30a7\u30c3\u30af<\/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=\"\">   &lt;plugin&gt;\n       &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n       &lt;artifactId&gt;maven-checkstyle-plugin&lt;\/artifactId&gt;\n       &lt;version&gt;3.1.2&lt;\/version&gt;\n   &lt;\/plugin&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-171\">\n<p><strong>2. \u30c6\u30b9\u30c8\u81ea\u52d5\u5316<\/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=\"\">   &lt;plugin&gt;\n       &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n       &lt;artifactId&gt;maven-surefire-plugin&lt;\/artifactId&gt;\n       &lt;version&gt;3.0.0-M5&lt;\/version&gt;\n   &lt;\/plugin&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-172\">\n<p><strong>3. \u4f9d\u5b58\u95a2\u4fc2\u306e\u6700\u9069\u5316<\/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=\"\">   &lt;plugin&gt;\n       &lt;groupId&gt;org.apache.maven.plugins&lt;\/groupId&gt;\n       &lt;artifactId&gt;maven-dependency-plugin&lt;\/artifactId&gt;\n       &lt;executions&gt;\n           &lt;execution&gt;\n               &lt;id&gt;analyze&lt;\/id&gt;\n               &lt;goals&gt;\n                   &lt;goal&gt;analyze-only&lt;\/goal&gt;\n               &lt;\/goals&gt;\n           &lt;\/execution&gt;\n       &lt;\/executions&gt;\n   &lt;\/plugin&gt;<\/pre>\n\n\n<div id=\"sgb-css-id-173\">\n<h4 class=\"wp-block-heading\" id=\"i-68\">CI\/CD\u74b0\u5883\u3067\u306e\u6700\u9069\u5316<\/h4>\n<\/div>\n\n<div id=\"sgb-css-id-174\">\n<p><strong>1. \u30d3\u30eb\u30c9\u30b9\u30c6\u30fc\u30b8\u306e\u6700\u9069\u5316<\/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=\"\">   # .gitlab-ci.yml \u306e\u4f8b\n   build:\n     script:\n       - mvn clean package -DskipTests\n       - mvn test<\/pre>\n\n\n<div id=\"sgb-css-id-175\">\n<p><strong>2. \u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565<\/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=\"\">   cache:\n     paths:\n       - .m2\/repository\/\n       - .gradle\/<\/pre>\n\n\n<div id=\"sgb-css-id-176\">\n<p>\u3053\u308c\u3089\u306e\u6700\u9069\u5316\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u3067\u5b89\u5b9a\u3057\u305f\u30d3\u30eb\u30c9\u30d7\u30ed\u30bb\u30b9\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u7279\u306b\u5927\u898f\u6a21\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u8a2d\u5b9a\u304c\u958b\u767a\u52b9\u7387\u3068\u30b3\u30fc\u30c9\u54c1\u8cea\u306b\u5927\u304d\u304f\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-177\">\n<h2 class=\"wp-block-heading\" id=\"i-69\">\u307e\u3068\u3081\uff1aJava\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u304b\u3089\u5b9f\u8df5\u307e\u3067<\/h2>\n<\/div>\n\n<div id=\"sgb-css-id-178\">\n<h3 class=\"wp-block-heading\" id=\"i-70\">\u3053\u306e\u8a18\u4e8b\u306e\u304a\u3055\u3089\u3044<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-179\">\n<p>\u3053\u3053\u307e\u3067\u3001Java\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-180\">\n<p>1. <strong>\u57fa\u790e\u77e5\u8b58<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-181\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u4ed5\u7d44\u307f\u3068\u91cd\u8981\u6027<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-182\">\n<p>\u3000\u25cf JDK\u3068JRE\u306e\u9055\u3044\u3068\u9069\u5207\u306a\u4f7f\u3044\u5206\u3051<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-183\">\n<p>\u3000\u25cf \u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u306e\u5f79\u5272\u3068\u7279\u5fb4<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-184\">\n<p>2. <strong>\u5b9f\u8df5\u7684\u306a\u30c6\u30af\u30cb\u30c3\u30af<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-185\">\n<p>\u3000\u25cf \u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u306e\u30b3\u30f3\u30d1\u30a4\u30eb\u65b9\u6cd5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-186\">\n<p>\u3000\u25cf \u8907\u6570\u30d5\u30a1\u30a4\u30eb\u306e\u52b9\u7387\u7684\u306a\u7ba1\u7406<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-187\">\n<p>\u3000\u25cf \u30af\u30e9\u30b9\u30d1\u30b9\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-188\">\n<p>3. <strong>IDE\u6d3b\u7528\u306e\u30dd\u30a4\u30f3\u30c8<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-189\">\n<p>\u3000\u25cf Eclipse\u3001IntelliJ IDEA\u3001VS Code\u306e\u7279\u5fb4\u3068\u4f7f\u3044\u65b9<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-190\">\n<p>\u3000\u25cf \u81ea\u52d5\u30b3\u30f3\u30d1\u30a4\u30eb\u6a5f\u80fd\u306e\u6d3b\u7528<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-191\">\n<p>\u3000\u25cf \u52b9\u7387\u7684\u306a\u958b\u767a\u74b0\u5883\u306e\u69cb\u7bc9<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-192\">\n<p>4. <strong>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-193\">\n<p>\u3000\u25cf \u4e00\u822c\u7684\u306a\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u306e\u89e3\u6c7a\u6cd5<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-194\">\n<p>\u3000\u25cf \u30d0\u30fc\u30b8\u30e7\u30f3\u4e92\u63db\u6027\u306e\u554f\u984c\u3078\u306e\u5bfe\u51e6<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-195\">\n<p>\u3000\u25cf \u30c7\u30d0\u30c3\u30b0\u306e\u52b9\u679c\u7684\u306a\u9032\u3081\u65b9<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-196\">\n<p>5. <strong><strong>\u6700\u9069\u5316\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-197\">\n<p>\u3000\u25cf Maven\/Gradle\u306b\u3088\u308b\u30d3\u30eb\u30c9\u81ea\u52d5\u5316<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-198\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u9593\u306e\u77ed\u7e2e\u30c6\u30af\u30cb\u30c3\u30af<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-199\">\n<p>\u3000\u25cf \u672c\u756a\u74b0\u5883\u306b\u5411\u3051\u305f\u8a2d\u5b9a\u6700\u9069\u5316<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-200\">\n<h3 class=\"wp-block-heading\" id=\"i-71\">\u6b21\u306e\u30b9\u30c6\u30c3\u30d7<\/h3>\n<\/div>\n\n<div id=\"sgb-css-id-201\">\n<p>Java\u30b3\u30f3\u30d1\u30a4\u30eb\u306e\u57fa\u790e\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u4ee5\u4e0b\u306e\u9805\u76ee\u306b\u3082\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-202\">\n<p>1. <strong><strong>\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u306e\u672c\u683c\u6d3b\u7528<\/strong><\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-203\">\n<p>\u3000\u25cf Maven\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u4f5c\u6210\u3068\u7ba1\u7406<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-204\">\n<p>\u3000\u25cf Gradle\u306b\u3088\u308b\u9ad8\u5ea6\u306a\u30d3\u30eb\u30c9\u8a2d\u5b9a<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-205\">\n<p>\u3000\u25cf CI\/CD\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u69cb\u7bc9<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-206\">\n<p>2. <strong><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/strong><\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-207\">\n<p>\u3000\u25cf \u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306e\u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-208\">\n<p>\u3000\u25cf \u30e1\u30e2\u30ea\u4f7f\u7528\u91cf\u306e\u6700\u9069\u5316<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-209\">\n<p>\u3000\u25cf \u30d3\u30eb\u30c9\u6642\u9593\u306e\u77ed\u7e2e<\/p>\n<\/div>\n\n<div id=\"sgb-css-id-210\">\n<p>3. <strong>\u30c1\u30fc\u30e0\u958b\u767a\u3067\u306e\u5b9f\u8df5<\/strong><\/p>\n<\/div>\n\n<div id=\"sgb-css-id-211\">\n<p>\u3000\u25cf 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