{"id":14067,"date":"2017-01-12T13:47:13","date_gmt":"2017-01-12T04:47:13","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=14067"},"modified":"2024-05-06T11:40:03","modified_gmt":"2024-05-06T02:40:03","slug":"%e3%80%903%e5%88%86%e3%81%a7%e3%82%8f%e3%81%8b%e3%82%8b%e3%80%91java%e8%a8%80%e8%aa%9e%e3%81%a7%e9%85%8d%e5%88%97%e3%82%92%e3%82%b3%e3%83%94%e3%83%bc%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%82%92","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/14067","title":{"rendered":"\u3010Java\u5165\u9580\u3011\u914d\u5217\u306e\u30b3\u30d4\u30fc(clone\u3001arraycopy\u3001Shallow\u3068Deep)"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u30aa\u30fc\u30bf\u30b1\u3067\u3059\u3002<\/p>\n<p>Java\u8a00\u8a9e\u3067\u306f<span style=\"color: #0000ff;\"><strong>\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5<\/strong><\/span>\u304c\u5e7e\u3064\u304b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30fc\u30c9\u306e\u9577\u3055\u3092\u6c17\u306b\u305b\u305a\u66f8\u304f\u65b9\u6cd5\u3068\u3057\u3066\u306f\u914d\u5217\u30922\u3064\u7528\u610f\u3057\u3066for\u6587\u3092\u4f7f\u3044\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u304b\u3089\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u306b\u4ee3\u5165\u3057\u3066\u3044\u304f\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u304c\u3001<\/p>\n<p><span style=\"color: #0000ff;\"><strong>\u3082\u3063\u3068\u7c21\u6f54\u306b\u66f8\u304f\u65b9\u6cd5<\/strong><\/span>\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\uff01<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u30fbclone\u3001arraycopy\u3092\u4f7f\u3063\u305f\u914d\u5217\u306e\u30b3\u30d4\u30fc<\/strong><\/span><\/p>\n<p>\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u30fbArrayList\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3068\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc<\/strong><\/span><\/p>\n<p>\u306a\u3069\u5177\u4f53\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u4f7f\u3044\u65b9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\uff01<\/p>\n<p>\u306a\u304a\u3001Java\u306e\u8a18\u4e8b\u306b\u3064\u3044\u3066\u306f\u3001<a href=\"https:\/\/www.sejuku.net\/blog\/148098\" target=\"_blank\" rel=\"noopener\">\u3053\u3061\u3089<\/a>\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>clone\u3001arraycopy\u3092\u4f7f\u3063\u305f\u914d\u5217\u306e\u30b3\u30d4\u30fc<\/h2>\n<p>\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff01<\/p>\n<p>\u5e7e\u3064\u304b\u65b9\u6cd5\u304c\u3042\u308b\u306e\u3067\u3054\u81ea\u8eab\u306e\u72b6\u6cc1\u306b\u3042\u3063\u305f\u4f7f\u3044\u65b9\u3092\u9078\u3093\u3067\u4e0b\u3055\u3044\u3002<\/p>\n<h3>clone\u3067\u306e\u30b3\u30d4\u30fc(DeepCopy)<\/h3>\n<p>\u3068\u3066\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #339966;\"><strong>clone<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3001\u6b21\u306e\u3088\u3046\u306b\u66f8\u3051\u3070\u914d\u5217\u306e\u30b3\u30d4\u30fc\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u30c7\u30fc\u30bf\u578b\u540d[] \u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d = new \u30c7\u30fc\u30bf\u578b[\u8981\u7d20\u6570];\r\n\u30c7\u30fc\u30bf\u578b\u540d[] \u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u540d = \u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d.close();<\/pre>\n<p>\u3067\u306f\u5b9f\u969b\u306b\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u306e\u5024\u304c\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u898b\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u4f8b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.Arrays;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        int[] foo = new int[10]; \/\/ \u5143\u306e\u914d\u5217\r\n         \r\n        for(int i = 0; i &lt; foo.length; i++) {\r\n            foo[i] = i + 1;\r\n        }\r\n         \r\n        int[] bar = foo.clone();\r\n        \r\n        System.out.println(Arrays.toString(foo));\r\n        System.out.println(Arrays.toString(bar));\r\n    }\r\n\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\r\n[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001\u914d\u5217foo\u306b1\uff5e10\u306e\u6570\u5024\u3092\u4ee3\u5165\u3057\u3001\u914d\u5217bar\u306b\u30b3\u30d4\u30fc\u3057\u305f\u5f8c\u306bbar\u306e\u4e2d\u8eab\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3057\u3063\u304b\u308a\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u307e\u3059\u306d\uff01<\/p>\n<h3>arraycopy\u3067\u306e\u30b3\u30d4\u30fc<\/h3>\n<p>\u3082\u3046\u4e00\u3064\u306e\u30b3\u30d4\u30fc\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><span style=\"color: #339966;\"><strong>arraycopy<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">System.arraycopy(\u30b3\u30d4\u30fc\u5143\u914d\u5217, \u30b3\u30d4\u30fc\u5143\u914d\u5217\u306e\u30b3\u30d4\u30fc\u958b\u59cb\u4f4d\u7f6e, \u30b3\u30d4\u30fc\u5148\u914d\u5217, \u30b3\u30d4\u30fc\u5148\u914d\u5217\u306e\u958b\u59cb\u4f4d\u7f6e, \u30b3\u30d4\u30fc\u306e\u500b\u6570)<\/pre>\n<p>\u306a\u304aarraycopy\u3092\u4f7f\u3046\u5834\u5408\u3001<span style=\"color: #ff0000;\"><strong>\u30b3\u30d4\u30fc\u5148\u306e\u5024\u304c\u30b3\u30d4\u30fc\u5143\u306e\u5024\u3067\u4e0a\u66f8\u304d<\/strong><\/span>\u3055\u308c\u307e\u3059\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.Arrays;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        int[] foo = new int[10]; \/\/ \u5143\u306e\u914d\u5217\r\n        int[] bar = new int[10]; \/\/ \u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\r\n         \r\n        for(int i = 0; i &lt; foo.length; i++) {\r\n            foo[i] = i + 1;\r\n        }\r\n        \r\n        System.arraycopy(foo, 0, bar, 0, 10);\r\n        \r\n        System.out.println(Arrays.toString(foo));\r\n        System.out.println(Arrays.toString(bar));\r\n    }\r\n\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\r\n[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]<\/pre>\n<h2>ArrayList\u306e\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3068\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc<\/h2>\n<p>\u4eca\u5ea6\u306fArrayList\u3092\u7528\u3044\u305f\u30b3\u30d4\u30fc\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>ArrayList\u306e\u30b3\u30d4\u30fc\u306b\u306f\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc(ShallowCopy)\u3068\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc(DeepCopy)\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u8a00\u8449\u306e\u610f\u5473\u3068\u3057\u3066\u306f<\/p>\n<ul>\n<li>Shallow(\u6d45\u3044)<\/li>\n<li>Deep(\u6df1\u3044)<\/li>\n<\/ul>\n<p>\u306b\u306a\u308a\u3001\u914d\u5217\u306e\u5404\u8981\u7d20\u306b\u3042\u308b\u4e2d\u8eab\u3092\u53b3\u5bc6\u306b\u30b3\u30d4\u30fc\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306e\u5834\u5408\u306f\u53c2\u7167\u306e\u307f\u30b3\u30d4\u30fc\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u306e\u5834\u5408\u306f\u5225\u306e\u53c2\u7167\u5148\u306b\u69cb\u9020\u3068\u5024\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u306e\u30b3\u30d4\u30fc\u65b9\u6cd5\u306f\u7528\u9014\u306b\u3088\u3063\u3066\u4f7f\u3044\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u3053\u306e\u3042\u305f\u308a\u3092\u3088\u304f\u7406\u89e3\u3057\u306a\u3044\u3067\u4f7f\u3063\u3066\u3057\u307e\u3046\u3068\u601d\u308f\u306c\u4e0d\u5177\u5408\u3092\u751f\u307f\u51fa\u3059\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\uff12\u3064\u306e\u9055\u3044\u3092\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc(ShallowCopy)<\/h3>\n<p>\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u6642\u306b\u4ee3\u5165\u3059\u308b\u5f62\u3067\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">ArrayList&lt;Object\u540d&gt; \u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d = new ArrayList&lt;&gt;();\r\nArrayList&lt;Object\u540d&gt; \u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u540d = \u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d;<\/pre>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.ArrayList;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        \/\/ \u30b3\u30d4\u30fc\u5143\u306eArrayList\r\n        ArrayList&lt;String&gt; src_list = new ArrayList&lt;&gt;();\r\n \r\n        for(int i = 0; i &lt; 10; i++) {\r\n            src_list.add(\"AAA\");\r\n        }\r\n        \r\n        \/\/ \u30b3\u30d4\u30fc\u5148\u306eArrayList\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u4ee3\u5165\u3057\u3066\u30b3\u30d4\u30fc(ShallowCopy)\r\n        ArrayList&lt;String&gt; dst_list = src_list;\r\n        \r\n        \/\/ \u30b3\u30d4\u30fc\u5148\u3092\u5909\u66f4\r\n        for(int i = 0; i &lt; dst_list.size(); i++) {\r\n            dst_list.set(i, \"BBB\");\r\n        }\r\n         \r\n        \/\/ \u30b3\u30d4\u30fc\u5143\u3068\u30b3\u30d4\u30fc\u5148\u3092\u51fa\u529b\u8868\u793a\r\n        System.out.println(src_list);\r\n        System.out.println(dst_list);\r\n    }\r\n\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">[BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB]\r\n[BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB]<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001src_list\u3068dst_list\u306e\u4e21\u65b9\u306e\u5024\u304cBBB\u3068\u66f8\u304d\u63db\u308f\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u610f\u56f3\u305b\u305a\u66f8\u304d\u63db\u3048\u3066\u3057\u307e\u3063\u3066\u4e0d\u5177\u5408\u3092\u751f\u3080\u53ef\u80fd\u6027<\/strong><\/span>\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc(DeepCopy)<\/h3>\n<p>\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u306e\u5834\u5408\u306f<span style=\"color: #339966;\"><strong>new<\/strong><\/span>\u53e5\u3092\u4f7f\u3044\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001\u305d\u306e<span style=\"color: #0000ff;\"><strong>\u5f15\u6570\u306b\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u3092\u6e21\u3057\u3066\u8a18\u8ff0<\/strong><\/span>\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">ArrayList&lt;Object\u540d&gt; \u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d = new ArrayList&lt;&gt;();\r\nArrayList&lt;Object\u540d&gt; \u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u540d = new ArrayList&lt;&gt;(\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u540d);<\/pre>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:java decode:true \">import java.util.ArrayList;\r\n\r\npublic class Main {\r\n \r\n    public static void main(String[] args) {\r\n        \/\/ \u30b3\u30d4\u30fc\u5143\u306eArrayList\r\n        ArrayList&lt;String&gt; src_list = new ArrayList&lt;&gt;();\r\n \r\n        for(int i = 0; i &lt; 10; i++) {\r\n            src_list.add(\"AAA\");\r\n        }\r\n        \r\n        \/\/ ArrayList\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u6642\u306b\u30b3\u30d4\u30fc\u5143\u3092\u5f15\u6570\u3067\u6e21\u3057\u3066\u30b3\u30d4\u30fc(DeepCopy)\r\n        ArrayList&lt;String&gt; dst_list = new ArrayList&lt;&gt;(src_list);\r\n        \r\n        \/\/ \u30b3\u30d4\u30fc\u5148\u3092\u5909\u66f4\r\n        for(int i = 0; i &lt; dst_list.size(); i++) {\r\n            dst_list.set(i, \"BBB\");\r\n        }\r\n         \r\n        \/\/ \u30b3\u30d4\u30fc\u5143\u3068\u30b3\u30d4\u30fc\u5148\u3092\u51fa\u529b\u8868\u793a\r\n        System.out.println(src_list);\r\n        System.out.println(dst_list);\r\n    }\r\n\r\n}<\/pre>\n<p>\u5b9f\u884c\u7d50\u679c\uff1a<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">[AAA, AAA, AAA, AAA, AAA, AAA, AAA, AAA, AAA, AAA]\r\n[BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB, BBB]<\/pre>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001ArrayList\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u751f\u6210\u6642\u306b\u30b3\u30d4\u30fc\u5143\u3092\u5f15\u6570\u3067\u6e21\u3057\u3066\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u3067\u306f<span style=\"color: #0000ff;\"><strong>\u914d\u5217\u306e\u69cb\u9020\u3060\u3051\u3067\u306a\u304f\u4e2d\u306b\u5165\u3063\u3066\u3044\u308b\u6587\u5b57\u5217\u81ea\u4f53\u3082\u30b3\u30d4\u30fc<\/strong><\/span>\u3055\u308c\u308b\u305f\u3081\u3001dst_list\u306e\u6587\u5b57\u5217\u3092\u5909\u66f4\u3057\u3066\u3082src_list\u306b\u306f\u5f71\u97ff\u304c\u306a\u304f<span style=\"color: #0000ff;\"><strong>\u5225\u7269\u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3044\u308b<\/strong><\/span>\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2>\u914d\u5217\u306e\u5ba3\u8a00\u3001\u521d\u671f\u5316\u3001\u5024\u306e\u8ffd\u52a0\u306a\u3069\u77e5\u308a\u305f\u3044\uff01<\/h2>\n<p>\u914d\u5217\u306e\u5ba3\u8a00\u3001\u521d\u671f\u5316\u3001\u5024\u306e\u8ffd\u52a0\u3001\u8981\u7d20\u6570\u306e\u53d6\u5f97\u3001\u5024\u306e\u30bd\u30fc\u30c8\u3084\u7d50\u5408\u306b\u3064\u3044\u3066\u306a\u3069\u3001\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u3053\u3061\u3089\u3082\u3054\u89a7\u304f\u3060\u3055\u3044\uff01<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/14461\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/01\/JAVA-144611-150x85.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011\u914d\u5217\u306e\u4f7f\u3044\u65b9\u7dcf\u307e\u3068\u3081(\u5ba3\u8a00\u3001\u521d\u671f\u5316\u3001\u8ffd\u52a0\u3001\u8981\u7d20\u6570)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u670810\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u304b\uff1f<\/p>\n<p>\u914d\u5217\u30b3\u30d4\u30fc\u306e\u65b9\u6cd5\u304b\u3089ArrayList\u3092\u7528\u3044\u305f\u30b3\u30d4\u30fc\u306e\u65b9\u6cd5\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u4f7f\u3044\u65b9\u304c\u3084\u3084\u9055\u3063\u305f\u308a\u3001\u30b7\u30e3\u30ed\u30fc\u30b3\u30d4\u30fc\u3084\u30c7\u30a3\u30fc\u30d7\u30b3\u30d4\u30fc\u306e\u8003\u3048\u65b9\u3067\u5c11\u3057\u6df7\u4e71\u3057\u3066\u3057\u307e\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u8a18\u8f09\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u5143\u306b\u3001\u3044\u308d\u3044\u308d\u8a66\u3057\u3066\u307f\u308b\u306e\u3082\u3044\u3044\u304b\u3068\u601d\u3044\u307e\u3059\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u30aa\u30fc\u30bf\u30b1\u3067\u3059\u3002 Java\u8a00\u8a9e\u3067\u306f\u914d\u5217\u3092\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5\u304c\u5e7e\u3064\u304b\u3042\u308a\u307e\u3059\u3002 \u30b3\u30fc\u30c9\u306e\u9577\u3055\u3092\u6c17\u306b\u305b\u305a\u66f8\u304f\u65b9\u6cd5\u3068\u3057\u3066\u306f\u914d\u5217\u30922\u3064\u7528\u610f\u3057\u3066for\u6587\u3092\u4f7f\u3044\u30b3\u30d4\u30fc\u5143\u306e\u914d\u5217\u304b\u3089\u30b3\u30d4\u30fc\u5148\u306e\u914d\u5217\u306b\u4ee3\u5165\u3057\u3066\u3044\u304f\u65b9\u6cd5\u304c [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":31930,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2344],"tags":[67],"class_list":["post-14067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-study","tag-java"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast 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\u300d\u306b\u3064\u3044\u3066\u3001\u8ab0\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u3042\u306a\u305f\u306e\u60a9\u307f\u304c\u89e3\u6c7a\u3059\u308b\u3060\u3051\u3058\u3083\u306a\u304f\u3001\u65b0\u305f\u306a\u6c17\u4ed8\u304d\u3082\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u304a\u60a9\u307f\u306e\u65b9\u306f\u305c\u3072\u3054\u4e00\u8aad\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sejuku.net\/blog\/14067\" \/>\n<meta property=\"og:site_name\" content=\"\u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/sejuku2013\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/sejuku2013\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-01-12T04:47:13+00:00\" \/>\n<meta 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