{"id":904,"date":"2017-01-17T16:00:36","date_gmt":"2017-01-17T07:00:36","guid":{"rendered":"https:\/\/java-code.jp\/?p=904"},"modified":"2020-03-03T14:08:42","modified_gmt":"2020-03-03T05:08:42","slug":"toarray%e3%83%a1%e3%82%bd%e3%83%83%e3%83%89","status":"publish","type":"post","link":"https:\/\/java-code.jp\/904","title":{"rendered":"toArray\u30e1\u30bd\u30c3\u30c9"},"content":{"rendered":"<p><em class=\"ccenterContents01\">\u30ea\u30b9\u30c8\u304b\u3089\u914d\u5217\u306b\u5909\u63db\u3059\u308b &#8211; toArray\u30e1\u30bd\u30c3\u30c9<\/em><\/p>\n<dl class=\"comand_frame\">\n<dt class=\"comand_txt\">public <T> T[] toArray(T[] a)<\/dt>\n<dd class=\"comand_exp\">T\uff1a\u4efb\u610f\u306e\u578b<\/dd>\n<dd class=\"comand_exp\">a\uff1a\u5909\u63db\u5148\u306e\u914d\u5217<\/dd>\n<\/dl>\n<p>\u30ea\u30b9\u30c8\u304b\u3089\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3001toArray\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u5f15\u6570a\u306b\u30ea\u30b9\u30c8\u306e\u5185\u5bb9\u304c\u5165\u3089\u306a\u3044\u5834\u5408\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u8981\u7d20\u304c\u5165\u308b\u3088\u3046\u306a\u914d\u5217\u3092\u751f\u6210\u3057\u307e\u3059\u3002<br \/>\n  \u30ea\u30b9\u30c8\u306e\u8981\u7d20\u578b\u304c\u914d\u5217\u306e\u8981\u7d20\u578b\u3068\u5408\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u306f\u3001ArrayStoreException\u4f8b\u5916\u3092\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p class=\"list\">CollToArray.java<\/p>\n<div class=\"pre\">\n<pre class=\"brush:java;highlight:[9,19];\">\r\npackage com.example.mynavi.collection;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.Arrays;\r\nimport java.util.List;\r\n\r\npublic class CollToArray {\r\n  public static void main(String[] args) {\r\n    List&lt;String&gt; list = new ArrayList&lt;String&gt;() {\r\n      {\r\n        add(\"Windows\");\r\n        add(\"Linux\");\r\n        add(\"macOS\");\r\n      }\r\n    };\r\n    String[] str = new String[list.size()];\r\n    list.toArray(str);\r\n    System.out.println(Arrays.toString(str));\t\/\/ \u7d50\u679c\uff1a[Windows, Linux, macOS]\r\n    System.out.println(list);\t\/\/ \u7d50\u679c\uff1a[Windows, Linux, macOS]\r\n  }\r\n}\r\n<\/pre>\n<p><!-- \/ .pre --><\/div>\n<p>\u5f15\u6570a\u306f\u7701\u7565\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u304c\u3001\u305d\u306e\u5834\u5408\u3001\u623b\u308a\u5024\u306f\u30ea\u30b9\u30c8\u306e\u8981\u7d20\u578b\u306b\u95a2\u308f\u3089\u305a\u3001Object\u914d\u5217\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u307e\u305a\u306f\u578b\u3092\u5224\u5b9a\u3067\u304d\u308b\u3088\u3046\u3001\u5f15\u6570a\u306f\u7701\u7565\u3057\u306a\u3044\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ea\u30b9\u30c8\u304b\u3089\u914d\u5217\u306b\u5909\u63db\u3059\u308b &#8211; toArray\u30e1\u30bd\u30c3\u30c9 public T[] toArray(T[] a) T\uff1a\u4efb\u610f\u306e\u578b a\uff1a\u5909\u63db\u5148\u306e\u914d\u5217 \u30ea\u30b9\u30c8\u304b\u3089\u914d\u5217\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3001toArray\u30e1\u30bd\u30c3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u5f15\u6570 [&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-904","post","type-post","status-publish","format-standard","hentry","category-frame"],"_links":{"self":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/904"}],"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=904"}],"version-history":[{"count":2,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/904\/revisions"}],"predecessor-version":[{"id":1498,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/posts\/904\/revisions\/1498"}],"wp:attachment":[{"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/media?parent=904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/categories?post=904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/java-code.jp\/wp-json\/wp\/v2\/tags?post=904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}