{"id":223,"date":"2013-07-25T20:03:39","date_gmt":"2013-07-25T11:03:39","guid":{"rendered":"http:\/\/www.rocher.kyoto.jp\/araburu\/?p=223"},"modified":"2013-07-25T23:50:07","modified_gmt":"2013-07-25T14:50:07","slug":"effectively-final","status":"publish","type":"post","link":"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=223","title":{"rendered":"Effectively final"},"content":{"rendered":"<p>\u5148\u65e5\u306eJJUG\u30ca\u30a4\u30c8\u30bb\u30df\u30ca\u30fc(<a href=\"http:\/\/www.slideshare.net\/skrb\/project-lambda-24531410\">\u524d\u534a\u8cc7\u6599<\/a>\/<a href=\"http:\/\/www.slideshare.net\/miyakawataku\/lambda-meets-invokedynamic\">\u5f8c\u534a\u8cc7\u6599<\/a>)\u3067fianl\u3064\u3051\u3066\u3044\u306a\u304f\u3066\u3082final\u3068\u307f\u306a\u3055\u308c\u308bEffectively final\u3068\u3044\u3046\u3082\u306e\u304cJava 8\u304b\u3089\u5c0e\u5165\u3055\u308c\u308b\u3068\u3044\u3046\u8a71\u3092\u805e\u3044\u305f\u3002\uff08\u524d\u534a\u8cc7\u659916p\u306b\u51fa\u3066\u304f\u308b\u300c\u5b9f\u8cea\u7684final\u300d\uff09<\/p>\n<pre>public class JavaApplication1 {\r\n\u00a0\u00a0\u00a0 public static void main(String[] args) {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span style=\"color: #ff0000;\">String hoge<\/span> = \"\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\u3002\";\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Runnable r1 = new Runnable() {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void run() {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(hoge);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 };\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 r1.run();\r\n\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Runnable r2 = () -&gt; {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(<span style=\"color: #ff0000;\">hoge<\/span>);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 };\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 r2.run();\r\n\u00a0\u00a0\u00a0 }\r\n}<\/pre>\n<p>\u4e0a\u307f\u305f\u3044\u306afinal\u306e\u4ed8\u3044\u3066\u3044\u306a\u3044\u5909\u6570(String hoge)\u3082\u4ee3\u5165\u3057\u3066\u3044\u306a\u3051\u308c\u3070final\u3068\u307f\u306a\u3057\u3066\u533f\u540d\u30af\u30e9\u30b9\u3001\u30e9\u30e0\u30c0\u5f0f\u306e\u4e2d\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3068\u306e\u3053\u3068\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u3061\u306a\u307f\u306bJava 7\u307e\u3067\u3060\u3068\u4e0b\u307f\u305f\u3044\u306b\u30a8\u30e9\u30fc\u3002<\/p>\n<p><a href=\"https:\/\/www.rocher.kyoto.jp\/araburu\/wp-content\/uploads\/2013\/07\/a10.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-224\" alt=\"a\" src=\"https:\/\/www.rocher.kyoto.jp\/araburu\/wp-content\/uploads\/2013\/07\/a10-300x69.png\" width=\"427\" height=\"98\" srcset=\"https:\/\/www.rocher.kyoto.jp\/arbr\/wp-content\/uploads\/2013\/07\/a10-300x69.png 300w, https:\/\/www.rocher.kyoto.jp\/arbr\/wp-content\/uploads\/2013\/07\/a10.png 442w\" sizes=\"auto, (max-width: 427px) 100vw, 427px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>final\u4ed8\u3044\u3066\u3044\u306a\u3044\u3051\u3069final\u6271\u3044\u306a\u306e\u3067\u518d\u4ee3\u5165\u3057\u305f\u3089\u3060\u3081\u3002<\/p>\n<pre>String hoge = \"\u3053\u3093\u306b\u3061\u306f\u4e16\u754c\u3002\";\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span style=\"color: #ff0000;\">hoge =\"\u3053\u3093\u3070\u3093\u308f\";<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Runnable r1 = new Runnable() {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 @Override<\/pre>\n<p>\u3068\u304b<\/p>\n<pre>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 public void run() {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span style=\"color: #ff0000;\">hoge =\"\u3053\u3093\u3070\u3093\u308f\";<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(hoge);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }<\/pre>\n<p>\u3068\u304b<\/p>\n<pre>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Runnable r2 = () -&gt; {\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <span style=\"color: #ff0000;\">hoge =\"\u3053\u3093\u3070\u3093\u308f\";<\/span>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println(hoge);\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 };<\/pre>\n<p>\u3068\u304b\u3002<\/p>\n<p>\u30a8\u30e9\u30fc\u304c\u3042\u308b\u72b6\u614b\u3067(Netbeans\u304b\u3089?\uff09\u5b9f\u884c\u3059\u308b\u3068<\/p>\n<pre>Exception in thread \"main\" java.lang.RuntimeException: Uncompilable source code - \u5185\u90e8\u30af\u30e9\u30b9\u304b\u3089\u53c2\u7167\u3055\u308c\u308b\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306f\u3001final\u307e\u305f\u306f\u4e8b\u5b9f\u4e0a\u306efinal\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/pre>\n<p>\u3068\u304b<\/p>\n<pre>Exception in thread \"main\" java.lang.RuntimeException: Uncompilable source code - \u30e9\u30e0\u30c0\u5f0f\u304b\u3089\u53c2\u7167\u3055\u308c\u308b\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306f\u3001final\u307e\u305f\u306f\u4e8b\u5b9f\u4e0a\u306efinal\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/pre>\n<p>\u308f\u304b\u308a\u3084\u3059\u3044\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n<p>\u8efd\u304f\u89e6\u3063\u305f\u611f\u3058\u3060\u3068\u304d\u308c\u3044\u306b\u52d5\u3044\u3066\u3044\u308b\u3002<\/p>\n<p>\uff08\u8b1b\u6f14\u3057\u3066\u304f\u308c\u305f\u65b9\u304c\u3053\u306efinal\u307e\u308f\u308a\u3067\u3088\u304f\u306f\u307e\u3063\u305f\u3068\u3044\u3063\u3066\u3044\u305f\u306e\u3067\u3001\u307e\u3060\u30c8\u30e9\u30c3\u30d7\u3042\u308a\u305d\u3046\u306a\u6c17\u304c\u3059\u308b\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u65e5\u306eJJUG\u30ca\u30a4\u30c8\u30bb\u30df\u30ca\u30fc(\u524d\u534a\u8cc7\u6599\/\u5f8c\u534a\u8cc7\u6599)\u3067fianl\u3064\u3051\u3066\u3044\u306a\u304f\u3066\u3082final\u3068\u307f\u306a\u3055\u308c\u308bEffectively final\u3068\u3044\u3046\u3082\u306e\u304cJava 8\u304b\u3089\u5c0e\u5165\u3055\u308c\u308b\u3068\u3044\u3046\u8a71\u3092\u805e\u3044\u305f\u3002\uff08\u524d\u534a\u8cc7\u659916p\u306b\u51fa\u3066\u304f\u308b\u300c\u5b9f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-223","post","type-post","status-publish","format-standard","hentry","category-jdk-8"],"_links":{"self":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=223"}],"version-history":[{"count":3,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/223\/revisions"}],"predecessor-version":[{"id":226,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/223\/revisions\/226"}],"wp:attachment":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}