{"id":3224,"date":"2025-12-16T10:47:09","date_gmt":"2025-12-16T01:47:09","guid":{"rendered":"https:\/\/www.agile-software.site\/?p=3224"},"modified":"2025-12-16T10:53:27","modified_gmt":"2025-12-16T01:53:27","slug":"jdk%e3%81%a8%e3%81%af%e4%bd%95%e3%81%8b%ef%bc%9f-java%e9%96%8b%e7%99%ba%e3%81%ae%e5%bf%85%e9%a0%88%e3%83%84%e3%83%bc%e3%83%ab%e3%82%ad%e3%83%83%e3%83%88%e3%82%92%e5%be%b9%e5%ba%95%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/agile-software.net\/?p=3224","title":{"rendered":"☕ JDK\u3068\u306f\u4f55\u304b\uff1f Java\u958b\u767a\u306e\u5fc5\u9808\u30c4\u30fc\u30eb\u30ad\u30c3\u30c8\u3092\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n

💡 JDK\u306e\u6982\u8981\uff1aJava\u958b\u767a\u306e\u5fc3\u81d3\u90e8<\/h2>\n\n\n\n

Java\u306f\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b7\u30b9\u30c6\u30e0\u304b\u3089Android\u30a2\u30d7\u30ea\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u307e\u3067\u3001\u4e16\u754c\u4e2d\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002\u3053\u306eJava\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3057\u3001\u5b9f\u884c\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u306a\u30c4\u30fc\u30eb\u30bb\u30c3\u30c8\u304c JDK (Java Development Kit)<\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n

JDK\u306f\u3001\u5358\u306a\u308b\u958b\u767a\u30c4\u30fc\u30eb\u3068\u3044\u3046\u3060\u3051\u3067\u306a\u304f\u3001Java\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u4f5c\u3055\u305b\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u5b9f\u884c\u74b0\u5883<\/strong>\u3068\u3001\u30b3\u30fc\u30c9\u3092\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308b\u305f\u3081\u306e\u958b\u767a\u30c4\u30fc\u30eb<\/strong>\u304c\u3059\u3079\u3066\u542b\u307e\u308c\u305f\u3001\u30aa\u30fc\u30eb\u30a4\u30f3\u30ef\u30f3\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n\n\n\n

📌 JDK\u306e\u4e09\u4f4d\u4e00\u4f53<\/h3>\n\n\n\n

JDK\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u3088\u304f\u4f3c\u305f\u7528\u8a9e\u3067\u3042\u308b\u300cJRE\u300d\u3068\u300cJVM\u300d\u3068\u306e\u95a2\u4fc2\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n

\u7528\u8a9e<\/strong><\/td>\u7565\u79f0<\/strong><\/td>\u5f79\u5272<\/strong><\/td>\u542b\u307e\u308c\u308b\u3082\u306e<\/strong><\/td><\/tr><\/thead>
JDK<\/strong><\/td>Java Development Kit<\/td>\u958b\u767a<\/strong>\u3068\u5b9f\u884c<\/strong>\u306e\u4e21\u65b9\u3092\u53ef\u80fd\u306b\u3059\u308b\u30c4\u30fc\u30eb\u30ad\u30c3\u30c8\u3002<\/td>JRE + \u958b\u767a\u30c4\u30fc\u30eb<\/td><\/tr>
JRE<\/strong><\/td>Java Runtime Environment<\/td>Java\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c<\/strong>\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u3002<\/td>JVM + \u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea<\/td><\/tr>
JVM<\/strong><\/td>Java Virtual Machine<\/td>Java\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092OS\u4e0a\u3067\u5b9f\u969b\u306b\u52d5\u4f5c<\/strong>\u3055\u305b\u308b\u4eee\u60f3\u30de\u30b7\u30f3\u3002<\/td>–<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u3064\u307e\u308a\u3001JDK<\/strong>\u304c\u3042\u308c\u3070\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4f5c\u6210\u30fb\u30b3\u30f3\u30d1\u30a4\u30eb\u30fb\u5b9f\u884c<\/strong>\u306e\u3059\u3079\u3066\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

\n\n\n\n

🛠️ JDK\u306e\u4e3b\u306a\u69cb\u6210\u8981\u7d20<\/h2>\n\n\n\n

JDK\u306f\u3001Java\u958b\u767a\u8005\u304c\u65e5\u5e38\u7684\u306b\u4f7f\u7528\u3059\u308b\u8907\u6570\u306e\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

1. JRE (Java Runtime Environment)<\/h3>\n\n\n\n

\u958b\u767a\u3057\u305fJava\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u969b\u306b\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u74b0\u5883\u3067\u3059\u3002JRE\u306b\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

    \n
  • JVM (Java Virtual Machine):<\/strong> Java\u306e\u7279\u5fb4\u3067\u3042\u308b\u300cWrite Once, Run Anywhere\uff08\u4e00\u5ea6\u66f8\u3051\u3070\u3001\u3069\u3053\u3067\u3082\u5b9f\u884c\u3067\u304d\u308b\uff09\u300d\u3092\u5b9f\u73fe\u3059\u308b\u4e2d\u6838\u6280\u8853\u3002OS\u306b\u4f9d\u5b58\u305b\u305a\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n\n\n\n
  • Java\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea (API):<\/strong> Java\u306e\u57fa\u672c\u7684\u306a\u6a5f\u80fd\uff08\u5165\u51fa\u529b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u306a\u3069\uff09\u3092\u63d0\u4f9b\u3059\u308b\u30af\u30e9\u30b9\u7fa4\u3002<\/li>\n<\/ul>\n\n\n\n

    2. \u958b\u767a\u30c4\u30fc\u30eb<\/h3>\n\n\n\n

    \u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f5c\u6210\u3057\u3001\u30c7\u30d0\u30c3\u30b0\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n

      \n
    • javac<\/code> (Java Compiler):<\/strong> \u958b\u767a\u8005\u304c\u8a18\u8ff0\u3057\u305fJava\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\uff08.java<\/code> \u30d5\u30a1\u30a4\u30eb\uff09\u3092\u3001JVM\u304c\u7406\u89e3\u3067\u304d\u308b\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9<\/strong>\uff08.class<\/code> \u30d5\u30a1\u30a4\u30eb\uff09\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/li>\n\n\n\n
    • java<\/code> (Java Launcher):<\/strong> \u30b3\u30f3\u30d1\u30a4\u30eb\u3055\u308c\u305f\u30d0\u30a4\u30c8\u30b3\u30fc\u30c9\u3092JVM\u306b\u6e21\u3057\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/li>\n\n\n\n
    • javadoc<\/code>:<\/strong> \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u5185\u306e\u30b3\u30e1\u30f3\u30c8\u304b\u3089\u3001\u81ea\u52d5\u3067API\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff08HTML\u5f62\u5f0f\uff09\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n\n\n\n
    • jar<\/code>:<\/strong> \u8907\u6570\u306e.class<\/code>\u30d5\u30a1\u30a4\u30eb\u3084\u30ea\u30bd\u30fc\u30b9\u30d5\u30a1\u30a4\u30eb\u3092\u4e00\u3064\u306b\u307e\u3068\u3081\u3001\u914d\u5e03\u53ef\u80fd\u306b\u3059\u308b\u30a2\u30fc\u30ab\u30a4\u30d6\u30c4\u30fc\u30eb\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n

      📈 Java\u958b\u767a\u306b\u304a\u3051\u308bJDK\u306e\u91cd\u8981\u6027<\/h2>\n\n\n\n

      JDK\u306f\u3001\u5358\u306b\u30b3\u30fc\u30c9\u3092\u52d5\u304b\u3059\u3060\u3051\u3067\u306a\u304f\u3001\u958b\u767a\u306e\u52b9\u7387\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u6027\u80fd\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

      1. \u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406<\/h3>\n\n\n\n

      JDK\u306f\u5b9a\u671f\u7684\u306b\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\uff08\u4f8b\uff1aJava 17, Java 21\u306a\u3069\uff09\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u307e\u3059\u3002\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u306f\u3001\u8a00\u8a9e\u6a5f\u80fd\u306e\u8ffd\u52a0\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u6539\u5584\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5f37\u5316\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

        \n
      • \u30e2\u30c0\u30ca\u30a4\u30ba\u306e\u57fa\u76e4:<\/strong> \u53e4\u3044Java\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6700\u65b0\u306eJDK\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\uff08\u30e2\u30c0\u30ca\u30a4\u30ba\uff09\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4fdd\u3061\u3064\u3064\u3001\u6700\u65b0\u306eJVM\u304c\u63d0\u4f9b\u3059\u308b\u9ad8\u901f\u306a\u5b9f\u884c\u30a8\u30f3\u30b8\u30f3\uff08\u4f8b\uff1aGarbage Collector\u306e\u6539\u5584\uff09\u306e\u6069\u6075\u3092\u53d7\u3051\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n

        2. \u4e92\u63db\u6027\u306e\u78ba\u4fdd<\/h3>\n\n\n\n

        JDK\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u8005\u306f\u5bfe\u8c61\u3068\u3059\u308bJava\u30d0\u30fc\u30b8\u30e7\u30f3\uff08\u4f8b\uff1aJava 8\u4e92\u63db\u3001Java 17\u4e92\u63db\uff09\u306b\u5408\u308f\u305b\u305f\u74b0\u5883\u3092\u624b\u5143\u306b\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30d7\u30ed\u30a4\u5148\u306e\u30b5\u30fc\u30d0\u30fc\u3068\u958b\u767a\u74b0\u5883\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u5dee\u7570\u306b\u3088\u308b\u30c8\u30e9\u30d6\u30eb\u3092\u9632\u304e\u307e\u3059\u3002<\/p>\n\n\n\n

        3. \u30e9\u30a4\u30bb\u30f3\u30b9\u3068\u63d0\u4f9b\u5143<\/h3>\n\n\n\n

        \u4ee5\u524d\u306fOracle\u304c\u63d0\u4f9b\u3059\u308bOracle JDK\u304c\u4e3b\u6d41\u3067\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u591a\u304f\u306e\u30d9\u30f3\u30c0\u30fc\u304b\u3089OpenJDK\uff08\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\uff09\u30d9\u30fc\u30b9\u306e\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\uff08\u4f8b\uff1aAdoptium Temurin\u3001Amazon Corretto\u306a\u3069\uff09\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u958b\u767a\u8005\u306f\u81ea\u8eab\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3084\u4f01\u696d\u306e\u30dd\u30ea\u30b7\u30fc\u306b\u5408\u3063\u305fJDK\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

        #x1f4a1; JDK\u306e\u6982\u8981\uff1aJava\u958b\u767a\u306e\u5fc3\u81d3\u90e8 Java\u306f\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30b7\u30b9\u30c6\u30e0\u304b\u3089Android\u30a2\u30d7\u30ea\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u307e\u3067\u3001\u4e16\u754c\u4e2d\u3067\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3059\u3002\u3053\u306eJav<\/p>\n","protected":false},"author":1,"featured_media":3239,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jin_ogp_image_url":"","_jin_last_featured_id":0,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3224","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/3224","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3224"}],"version-history":[{"count":1,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/3224\/revisions"}],"predecessor-version":[{"id":3237,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/posts\/3224\/revisions\/3237"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=\/wp\/v2\/media\/3239"}],"wp:attachment":[{"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agile-software.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}