{"id":16055,"date":"2017-02-27T21:26:37","date_gmt":"2017-02-27T12:26:37","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=16055"},"modified":"2024-05-06T11:40:34","modified_gmt":"2024-05-06T02:40:34","slug":"%e3%80%903%e5%88%86%e3%81%a7%e7%90%86%e8%a7%a3%e3%80%91java%e3%81%aemap%e3%81%a7%e5%80%a4%e3%82%92%e5%8f%96%e5%be%97%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95get","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/16055","title":{"rendered":"\u3010Java\u5165\u9580\u3011Map(\u9023\u60f3\u914d\u5217)\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n<p>Java\u3092\u4f7f\u3046\u4e0a\u3067\u3001List\u3084Map\u306a\u3069\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u6271\u3046\u51e6\u7406\u306f\u5fc5\u9808\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001Map\u306fList\u306b\u6bd4\u3079\u3066\u5024\u306e\u8a2d\u5b9a\u65b9\u6cd5\u304c\u3084\u3084\u8907\u96d1\u3067\u3001\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3082\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Map\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u4ee5\u4e0b\u306e\u5185\u5bb9\u3067\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n<div class=\"box01\">\n\n\n\n<ul class=\"wp-block-list\">\n<li><b>\u30ad\u30fc\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n\n\n\n<li><b>\u30ad\u30fc\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n\n\n\n<li><b>\u5024\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n\n\n\n<li><b>\u30ad\u30fc\u3068\u5024\u306e\u30da\u30a2(Entry)\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n\n\n\n<li><b>List\u306b\u5909\u63db\u3057\u3066\u8981\u7d20\u756a\u53f7\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n<\/ul>\n\n\n<\/div>\n\n\n\n<p>\u4eca\u56de\u306fMap\u306e\u30ad\u30fc\u3084\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\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\n\n\n<h2 class=\"wp-block-heading\">Map(\u9023\u60f3\u914d\u5217)\u3068\u306f<\/h2>\n\n\n\n<p>Map\u3068\u306f\u3001<b>\u30ad\u30fc\u3068\u5024\u3092\u30da\u30a2\u3067\u4fdd\u6301\u3059\u308b\u30b3\u30ec\u30af\u30b7\u30e7\u30f3<\/b>\u3067\u3059\u3002\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3068\u306f\u3001\u5f8c\u304b\u3089\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3067\u304d\u308b\u52d5\u7684\u914d\u5217\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u5024\u3092\u8ffd\u52a0\u3059\u308b\u6642\u306b\u306f\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3001\u30ad\u30fc\u3092\u4f7f\u3063\u3066\u5024\u3092\u691c\u7d22\u3057\u305f\u308a\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30ad\u30fc\u306e\u91cd\u8907\u306f\u8a31\u3055\u308c\u305a\u3001\u30ad\u30fc\u3068\u5024\u306f\u53c2\u7167\u578b\u306e\u307f\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Map\u306f\u9023\u60f3\u914d\u5217\u3068\u3082\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ad\u30fc\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>Map\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001get\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066Map\u306e\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3001\u30ad\u30fc\u306b\u7d10\u4ed8\u3044\u305f\u5024\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u5b9f\u969b\u306bMap\u3067\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3066\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u3001\u4ee5\u4e0b\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import java.util.HashMap;\nimport java.util.Map;\n \npublic class Main {\n \n    public static void main(String[] args) {\n        \/\/ Map\u306e\u5ba3\u8a00\n        Map&lt;String, String&gt; map = new HashMap&lt;&gt;();\n        \n        \/\/ Map\u306b\u30ad\u30fc\u3068\u5024\u3092\u683c\u7d0d\n        map.put(\"key1\", \"orange\");\n        map.put(\"key2\", \"apple\");\n        map.put(\"key3\", \"melon\");\n        \n        \/\/ Map\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\n        System.out.println(map.get(\"key1\"));\n        System.out.println(map.get(\"key2\"));\n        System.out.println(map.get(\"key3\"));\n    }\n}\n<\/pre>\n\n\n\n<p><strong>\u5b9f\u884c\u7d50\u679c\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">orange\napple\nmelon\n<\/pre>\n\n\n\n<p>\u7d39\u4ecb\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306f\u3001Map\u578b\u306e\u5909\u6570map\u3092\u5ba3\u8a00\u3057\u3001\u8a2d\u5b9a\u3059\u308b\u30ad\u30fc\u3068\u30c7\u30fc\u30bf\u3092String\u578b\u3067\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002put\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ad\u30fc\u540d\u3068\u305d\u308c\u306b\u7d10\u3065\u304f\u5024\u3092\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>put\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u683c\u7d0d\u3057\u305f\u3089\u3001get\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30ad\u30fc\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u683c\u7d0d\u3057\u305f\u5024\u3092\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ad\u30fc\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>Map\u306e\u30ad\u30fc\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001keySet\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002keySet\u30e1\u30bd\u30c3\u30c9\u306fMap\u306e\u30ad\u30fc\u3092Set\u578b\u3067\u8fd4\u3059\u306e\u3067\u3001\u62e1\u5f35for\u6587\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7e70\u308a\u8fd4\u3057\u3066\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import java.util.HashMap;\nimport java.util.Map;\n\npublic class Main {\n\n\tpublic static void main(String[] args) {\n\t\tMap&lt;String, String&gt; map = new HashMap&lt;&gt;();\n\t\tmap.put(\"samurai\", \"\u4f8d\");\n\t\tmap.put(\"engineer\", \"\u30a8\u30f3\u30b8\u30cb\u30a2\");\n\n\t\tfor (String key : map.keySet()) {\n\t\t\tSystem.out.println(key);\n\t\t}\n\t}\n\n}\n<\/pre>\n\n\n\n<p><strong>\u5b9f\u884c\u7d50\u679c\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">samurai\nengineer\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u5024\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>Map\u306e\u5024\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001values\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002values\u30e1\u30bd\u30c3\u30c9\u3082Map\u306e\u5024\u3092Set\u578b\u3067\u8fd4\u3059\u306e\u3067\u3001\u62e1\u5f35for\u6587\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7e70\u308a\u8fd4\u3057\u3066\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import java.util.HashMap;\nimport java.util.Map;\n\npublic class Main {\n\n\tpublic static void main(String[] args) {\n\t\tMap&lt;String, String&gt; map = new HashMap&lt;&gt;();\n\t\tmap.put(\"samurai\", \"\u4f8d\");\n\t\tmap.put(\"engineer\", \"\u30a8\u30f3\u30b8\u30cb\u30a2\");\n\n\t\tfor(String val : map.values()){\n\t\t    System.out.println(val);\n\t\t}\n\t}\n\n}\n<\/pre>\n\n\n\n<p><strong>\u5b9f\u884c\u7d50\u679c\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u4f8d\n\u30a8\u30f3\u30b8\u30cb\u30a2\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ad\u30fc\u3068\u5024\u306e\u30da\u30a2(Entry)\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>Map\u306e\u30ad\u30fc\u3068\u5024\u306e\u30da\u30a2\u306fMap.Entry\u30a4\u30f3\u30bf\u30d5\u30a7\u30fc\u30b9\u3067\u8868\u3055\u308c\u307e\u3059\u3002Map.Entry\u306fgetKey\u30e1\u30bd\u30c3\u30c9\u3067\u30ad\u30fc\u3092\u3001getValue\u30e1\u30bd\u30c3\u30c9\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Map\u306eEntry\u3092\u5168\u3066\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001entrySet\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>entrySet\u30e1\u30bd\u30c3\u30c9\u306fMap\u306eEntry\u3092Set\u578b\u3067\u8fd4\u3059\u306e\u3067\u3001\u62e1\u5f35for\u6587\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u7e70\u308a\u8fd4\u3057\u3066\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import java.util.HashMap;\nimport java.util.Map;\n\npublic class Main {\n\n\tpublic static void main(String[] args) {\n\t\tMap&lt;String, String&gt; map = new HashMap&lt;&gt;();\n\t\tmap.put(\"samurai\", \"\u4f8d\");\n\t\tmap.put(\"engineer\", \"\u30a8\u30f3\u30b8\u30cb\u30a2\");\n\n\t\tfor(Map.Entry&lt;String, String&gt; entry : map.entrySet()){\n\t\t    System.out.println(entry.getKey() + \":\" + entry.getValue());\n\t\t}\n\t}\n\n}\n<\/pre>\n\n\n\n<p><strong>\u5b9f\u884c\u7d50\u679c\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">samurai:\u4f8d\nengineer:\u30a8\u30f3\u30b8\u30cb\u30a2\n<\/pre>\n\n\n\n<p>Map\u306e\u30ad\u30fc\u3084\u5024\u3092\u7e70\u308a\u8fd4\u3057\u3066\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u3082\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\uff01<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/15767\" 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\/02\/mapfor-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011Map\u306bfor\u6587\u3084foreach\u306e\u30eb\u30fc\u30d7\u3092\u4f7f\u3044\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h2 class=\"wp-block-heading\">List\u306b\u5909\u63db\u3057\u3066\u8981\u7d20\u756a\u53f7\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u3053\u3053\u3067\u306fMap\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3068\u3057\u3066\u3001<b>\u8981\u7d20\u756a\u53f7\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5<\/b>\u3092\u8aac\u660e\u3057\u307e\u3059\u3002Map\u306f\u8aac\u660e\u3057\u305f\u3088\u3046\u306b\u3001\u6307\u5b9a\u3057\u305f\u30ad\u30fc\u306b\u7d10\u3065\u304f\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001Map\u3092\u540c\u3058\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306eList\u306b\u5909\u63db\u3059\u308c\u3070\u3001\u8981\u7d20\u756a\u53f7\u3092\u6307\u5b9a\u3057\u3066\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002Map\u3092List\u306b\u5909\u63db\u3059\u308b\u306b\u306f\u3001values\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u66f8\u304d\u65b9\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">List&lt;\u5024\u306e\u30c7\u30fc\u30bf\u578b&gt; \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d = new ArrayList&lt;\u5024\u306e\u30c7\u30fc\u30bf\u578b&gt;(Map\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u540d.values());\n<\/pre>\n\n\n\n<p>values\u30e1\u30bd\u30c3\u30c9\u306fMap\u306b\u683c\u7d0d\u3055\u308c\u305f\u5168\u3066\u306e\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002Map\u306b\u683c\u7d0d\u3057\u305f\u5024\u3092List\u306b\u5909\u63db\u3057\u3066\u3001\u8981\u7d20\u756a\u53f7\u3067\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u4ee5\u4e0b\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">import java.util.ArrayList;\nimport java.util.HashMap;\nimport java.util.List;\nimport java.util.Map;\n \npublic class Main {\n \n    public static void main(String[] args) {\n        \/\/ Map\u306e\u5ba3\u8a00\n        Map&lt;String, String&gt; map = new HashMap&lt;&gt;();\n        \n        \/\/ MAP\u306b\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\n        map.put(\"key1\", \"apple\");\n        map.put(\"key2\", \"orange\");\n        map.put(\"key3\", \"melon\");\n        \n        \/\/ List\u3092\u5ba3\u8a00\u3057\u3001values\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066Map\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\n        List&lt;String&gt; list = new ArrayList&lt;&gt;(map.values());\n        \n        \/\/ \u8981\u7d20\u756a\u53f7\u3092\u6307\u5b9a\u3057\u3066List\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\n        System.out.println(list.get(0));\n        System.out.println(list.get(1));\n        System.out.println(list.get(2));\n    }\n}\n<\/pre>\n\n\n\n<p><strong>\u5b9f\u884c\u7d50\u679c\uff1a<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">orange\napple\nmelon\n<\/pre>\n\n\n\n<p>\u7d39\u4ecb\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u5148\u307b\u3069\u3068\u540c\u3058\u304fMap\u578b\u306e\u5909\u6570map\u3092\u5ba3\u8a00\u3057\u3001\u683c\u7d0d\u3059\u308b\u30ad\u30fc\u3068\u5024\u3092String\u578b\u3067\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002put\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ad\u30fc\u540d\u79f0\u3068\u305d\u308c\u306b\u7d10\u3065\u304f\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306b\u3001ArrayList\u30af\u30e9\u30b9\u306eList\u578b\u306e\u5909\u6570list\u3092\u5ba3\u8a00\u3057\u3001values\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066Map\u3092List\u306b\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002List\u306eget\u30e1\u30bd\u30c3\u30c9\u3067\u8981\u7d20\u6570\u3092\u6307\u5b9a\u3057\u3001\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8981\u7d20\u306e\u8ffd\u52a0\u306a\u3069Map(\u9023\u60f3\u914d\u5217)\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p>\u8981\u7d20\u306e\u8ffd\u52a0\u3084\u30bd\u30fc\u30c8\u306a\u3069Map(\u9023\u60f3\u914d\u5217)\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u306b\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u306e\u3067\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n\n\n            <a href=\"https:\/\/www.sejuku.net\/blog\/19796\" 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\/03\/hashmap-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Java\u5165\u9580\u3011Map\u306e\u4f7f\u3044\u65b9\u7dcf\u307e\u3068\u3081(HashMap\u3067\u521d\u671f\u5316\u3001\u5024\u306e\u30bd\u30fc\u30c8)<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u304b\uff1fMap\u306e\u30ad\u30fc\u3084\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3084\u3001Map\u3092List\u306b\u5909\u63db\u3057\u3066\u8981\u7d20\u756a\u53f7\u3092\u6307\u5b9a\u3057\u3066\u5024\u3092\u53d6\u5f97\u3067\u304d\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3057\u305f\u3002\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3092\u3059\u308c\u3070\u3001List\u3084Map\u306f\u66f4\u306b\u4fbf\u5229\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3082\u3057Map\u304b\u3089\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3092\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3001\u3053\u306e\u8a18\u4e8b\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u3092\u4f7f\u3046\u4e0a\u3067\u3001List\u3084Map\u306a\u3069\u306e\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u6271\u3046\u51e6\u7406\u306f\u5fc5\u9808\u3068\u8a00\u3048\u307e\u3059\u3002 \u3057\u304b\u3057\u3001Map\u306fList\u306b\u6bd4\u3079\u3066\u5024\u306e\u8a2d\u5b9a\u65b9\u6cd5\u304c\u3084\u3084\u8907\u96d1\u3067\u3001\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u3082\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Map\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":39715,"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-16055","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 SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010Java\u5165\u9580\u3011Map(\u9023\u60f3\u914d\u5217)\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011Map(\u9023\u60f3\u914d\u5217)\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 \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 name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sejuku.net\/blog\/16055\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u5165\u9580\u3011Map(\u9023\u60f3\u914d\u5217)\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0\" \/>\n<meta property=\"og:description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c \u3010Java\u5165\u9580\u3011Map(\u9023\u60f3\u914d\u5217)\u306e\u30ad\u30fc\u3068\u5024\u3092\u53d6\u5f97\u3059\u308b\u65b9\u6cd5 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