{"id":156,"date":"2017-01-17T16:00:00","date_gmt":"2017-01-17T07:00:00","guid":{"rendered":"https:\/\/java-code.jp\/?p=156"},"modified":"2020-02-14T16:33:22","modified_gmt":"2020-02-14T07:33:22","slug":"%e3%82%b8%e3%82%a7%e3%83%8d%e3%83%aa%e3%83%83%e3%82%af%e3%82%b9%e3%81%ae%e5%9f%ba%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/java-code.jp\/156","title":{"rendered":"\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u306e\u57fa\u672c"},"content":{"rendered":"<p>\u305f\u3068\u3048\u3070\u3001List&lt;String&gt;\u306e\u3088\u3046\u306b\u3001&lt;&#8230;&gt;\u306e\u5f62\u5f0f\u3067\u578b\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u3001String\u578b\u5c02\u7528\u306e\u30ea\u30b9\u30c8\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"pre\">\n<pre class=\"brush:java;\">\r\nList&lt;String> l = new ArrayList&lt;String>();\r\nl.add(\"Java\");\r\nl.add(\"Scala\");\r\nl.add(\"Ruby\");\r\nString str = l.get(0);\r\n<\/pre>\n<p><!-- \/ .pre --><\/div>\n<p>\u540c\u3058\u30b3\u30fc\u30c9\u3092\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u3092\u5229\u7528\u3057\u306a\u3044\u3067\u8a18\u8ff0\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"pre\">\n<pre class=\"brush:java;highlight:[5];\">\r\nList l = new ArrayList();\r\nl.add(\"Java\");\r\nl.add(\"Scala\");\r\nl.add(\"Ruby\");\r\nString str = (String)l.get(0);\r\n<\/pre>\n<p><!-- \/ .pre --><\/div>\n<p>\u30ea\u30b9\u30c8\u304b\u3089\u53d6\u308a\u51fa\u3057\u305f\u8981\u7d20\u306f\u3059\u3079\u3066Object\u578b\u3068\u898b\u306a\u3055\u308c\u307e\u3059\u306e\u3067\u3001\u3044\u3061\u3044\u3061\u578b\u30ad\u30e3\u30b9\u30c8\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u3067\u3059\u3002\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u3046\u3057\u305f\u624b\u9593\u3084\u3001\u30ad\u30e3\u30b9\u30c8\u30df\u30b9\u306b\u3088\u308b\u4f8b\u5916\u306e\u767a\u751f\u306a\u3069\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n  \u307e\u305f\u3001\u30ea\u30b9\u30c8\u306b\u8981\u7d20\u3092\u30bb\u30c3\u30c8\u3059\u308b\u969b\u3082\u3001\u60f3\u5b9a\u5916\u306e\u578b\u304c\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n<div class=\"pre\">\n<pre class=\"brush:java;\">\r\nList&lt;String> l = new ArrayList&lt;String>();\r\nl.add(10.1);\t\/\/ String\u578b\u3067\u306a\u3044\u306e\u3067\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\r\n<\/pre>\n<p><!-- \/ .pre --><\/div>\n<p><em class=\"note\"><img loading=\"lazy\" decoding=\"async\" src=\"wp-content\/themes\/Javacord\/images\/common\/image07.gif\" alt=\"note\" width=\"118\" height=\"32\"><\/em><\/p>\n<p class=\"ccenterNote\"><strong>\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u306e\u8981\u7d20\u578b<\/strong><br \/>\n\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30b9\u306e&lt;&#8230;&gt;\u306b\u306f\u3001\u4efb\u610f\u306e\u578b\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300cList&lt;<span>List&lt;String&gt;<\/span>&gt;\u300d\u3068\u3059\u308b\u3053\u3068\u3067\u3001String\u578b\u306e\u30ea\u30b9\u30c8\u3092\u8981\u7d20\u306b\u6301\u3064\u30ea\u30b9\u30c8\u3001\u3064\u307e\u308a\u4e8c\u6b21\u5143\u306e\u30ea\u30b9\u30c8\u3092\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<br \/>\n  \u307e\u305f\u3001\u300cMap&lt;String, String&gt;\u300d\u306e\u3088\u3046\u306b\u578b\u3092\u8907\u6570\u53d7\u3051\u53d6\u308b\u30af\u30e9\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u578b\u306f\u30ab\u30f3\u30de\u533a\u5207\u308a\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u305f\u3068\u3048\u3070\u3001List&lt;String&gt;\u306e\u3088\u3046\u306b\u3001&lt;&#8230;&gt;\u306e\u5f62\u5f0f\u3067\u578b\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u3001String\u578b\u5c02\u7528\u306e\u30ea\u30b9\u30c8\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002 List&lt;String> l = new ArrayLi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-156","post","type-post","status-publish","format-standard","hentry","category-generics"],"_links":{"self":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/156"}],"collection":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/comments?post=156"}],"version-history":[{"count":8,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/156\/revisions"}],"predecessor-version":[{"id":1374,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/156\/revisions\/1374"}],"wp:attachment":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/media?parent=156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/categories?post=156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/tags?post=156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}