{"id":31155,"date":"2023-07-27T11:09:27","date_gmt":"2023-01-12T16:37:27","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91java-util-%e9%9b%86%e5%90%88%e6%a1%86%e6%9e%b6%ef%bc%88map%ef%bc%89\/"},"modified":"2025-08-12T22:36:18","modified_gmt":"2025-08-12T14:36:18","slug":"%e3%80%90java%e3%80%91java-util-%e9%9b%86%e5%90%88%e6%a1%86%e6%9e%b6%ef%bc%88map%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91java-util-%e9%9b%86%e5%90%88%e6%a1%86%e6%9e%b6%ef%bc%88map%ef%bc%89\/","title":{"rendered":"\u3010Java\u3011java.util \u96c6\u5408\u6846\u67b6\uff08Map\uff09"},"content":{"rendered":"

\u3010\u5730\u56fe\u3011\u4fdd\u6301\u952e\u548c\u503c\u7684\u6620\u5c04\u5173\u7cfb\u5728\u5904\u7406\u5173\u8054\u6570\u7ec4\u65f6\uff0c\u6709\u4e00\u4e2a\u79f0\u4e3a Map \u7684\u96c6\u5408\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n

\u5730\u56fe\u662f\u4ec0\u4e48\uff1f\u5730\u56fe\u7531\u4e24\u4e2a\u5143\u7d20\u7ec4\u6210\uff0c\u5206\u522b\u662f\u201c\u952e\u201d\u548c\u201c\u503c\u201d\u3002<\/p>\n

Map \u7684\u7279\u70b9\u662f\u5728\u300c\u952e\u300d\u4e0e\u300c\u503c\u300d\u4e4b\u95f4\u5f62\u6210\u4e00\u5bf9\u5bf9\u7684\u5173\u7cfb\uff0c\u5176\u4e2d\u952e\u7684\u4f5c\u7528\u7c7b\u4f3c\u4e8e\u7ed9\u503c\u547d\u540d\u3002\u6bcf\u4e2a\u503c\u90fd\u6709\u4e00\u4e2a\u5bf9\u5e94\u7684\u952e\u5b58\u5728\uff0c\u8fd9\u5c31\u662f\u300c\u952e\u300d\u548c\u300c\u503c\u300d\u6210\u5bf9\u51fa\u73b0\u7684\u65b9\u5f0f\u3002<\/p>\n

\u952e\u662f\u552f\u4e00\u7684\uff0c\u4f46\u662f\u503c\u53ef\u4ee5\u6709\u591a\u4e2a\u76f8\u540c\u7684\u3002<\/p>\n

Map\u7c7b\u7684\u7279\u70b9\u5730\u56fe\u662f\u57fa\u4e8eMap\u63a5\u53e3\u5b9e\u73b0\u7684\uff0c\u5e38\u7528\u7684\u6709HashMap\u3001TreeMap\u3001LinkedHashMap\u8fd9\u4e09\u79cd\u3002<\/p>\n
\n
Map\u30af\u30e9\u30b9\u6982\u8981HashMap\u30cf\u30c3\u30b7\u30e5\u3092\u4f7f\u3063\u305fMap\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u3002 \u8981\u7d20\u6570\u306b\u3088\u3089\u306a\u3044\u9ad8\u901f\u306a\u691c\u7d22\u304c\u3067\u304d\u307e\u3059\u3002
\n\u9806\u5e8f\u304c\u4fdd\u6301\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u76ee\u7684\u306e\u8981\u7d20\u306e\u30ad\u30fc\u3092\u6307\u5b9a\u3057\u3066\u305d\u308c\u306b\u7d10\u3065\u304f\u5024\u3092\u53d6\u5f97\u3059\u308b\u306e\u304c\u65e9\u3044TreeMap\u9806\u5e8f\u304c\u30ad\u30fc\u306e\u9806\u756a\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u30ad\u30fc\u304c\u6570\u5024\u306e\u5834\u5408\u306f\u5c0f\u3055\u3044\u9806\u306b\u8981\u7d20\u304c\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002
\n\u30ad\u30fc\u304c\u6587\u5b57\u5217\u306e\u5834\u5408\u306f\u3001\u6587\u5b57\u30b3\u30fc\u30c9\u306e\u9806\uff08\u8f9e\u66f8\u9806\u3001\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u9806\uff09\u306b\u8981\u7d20\u304c\u4fdd\u6301\u3055\u308c\u308b\u3002LinkedHashMap\u30ad\u30fc\u306e\u633f\u5165\u9806\u3092\u4fdd\u6301\u3059\u308b\u3002 \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5f15\u6570\u306e\u6307\u5b9a\u306b\u3088\u3063\u3066\u3001
\n\u633f\u5165\u9806\u3067\u306f\u306a\u304f\u30a2\u30af\u30bb\u30b9\u9806\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u633f\u5165\u9806\u3067\u3059\u3002
\n\u8981\u7d20\u3092\u8ffd\u52a0\uff08put\uff09\u3057\u305f\u9806\u756a\u306b\u3001\u305d\u306e\u307e\u307e\u306e\u9806\u756a\u3067\u8981\u7d20\u304c\u4fdd\u6301\u3055\u308c\u307e\u3059\u3002
\n\u307e\u305f\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5f15\u6570\u306b\u9806\u5e8f\u4ed8\u3051\u30e2\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u3066\u3001\u30a2\u30af\u30bb\u30b9\u9806\uff08get\u3057\u305f\u9806\u756a\uff09\u306b\u4fdd\u6301\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u5730\u56fe\u7684\u5b9a\u4e49\u65b9\u5f0f\u53ef\u4ee5\u4f7f\u7528\u4e0eArrayList\u7b49\u7c7b\u4f3c\u7684\u8bed\u6cd5\u8fdb\u884cMap\u7684\u521d\u59cb\u5316\u64cd\u4f5c\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u94bb\u77f3\u64cd\u4f5c\u7b26\u8fdb\u884c\u63cf\u8ff0\u3002<\/p>\n

\u8fd9\u662f\u57fa\u672c\u5b9a\u4e49\u7684\u65b9\u5f0f\u3002<\/p>\n
\u30de\u30c3\u30d7\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u540d<\u578b> \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u540d = new \u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u540d<\u578b>();\r\n<\/code><\/pre>\n
\u54c8\u5e0c\u5730\u56fe\u7684\u5b9a\u4e49<\/p>\n
\/\/ HashMap\uff08Map\u306e\u4ee3\u308f\u308a\u306b\u5de6\u8fba\u3092\u540c\u3058HashMap\u306b\u3057\u3066\u3082\u53ef\uff09<\/span>\r\nMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>><\/span> hashMap<\/span> =<\/span> new<\/span> HashMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>>();<\/span>\r\n<\/code><\/pre>\n
\u6811\u56fe\u7684\u5b9a\u4e49<\/p>\n
\/\/ TreeMap\uff08Map\u306e\u4ee3\u308f\u308a\u306b\u5de6\u8fba\u3092\u540c\u3058TreeMap\u306b\u3057\u3066\u3082\u53ef\uff09<\/span>\r\nMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>><\/span> treeMap<\/span> =<\/span> new<\/span> TreeMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>>();<\/span>\r\n<\/code><\/pre>\n
LinkedHashMap\u7684\u5b9a\u4e49<\/p>\n
\/\/ LinkedHashMap\uff08Map\u306e\u4ee3\u308f\u308a\u306b\u5de6\u8fba\u3092\u540c\u3058LinkedHashMap\u306b\u3057\u3066\u3082\u53ef\uff09<\/span>\r\nMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>><\/span> treeMap<\/span> =<\/span> new<\/span> LinkedHashMap<\/span><<\/span>String<\/span>,<\/span> Integer<\/span>>();<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528\u5730\u56fe\u7684\u4f8b\u5b50
\n\u8bf7\u5148\u67e5\u770b\u8fd9\u6bb5\u4ee3\u7801\uff0c\u8be6\u7ec6\u7684\u8bf4\u660e\u5df2\u7ecf\u5728\u6ce8\u91ca\u4e2d\u63cf\u8ff0\u4e86\uff0c\u4e0b\u9762\u6211\u4f1a\u7ed9\u51fa\u66f4\u8be6\u7ec6\u7684\u89e3\u91ca\u3002<\/p>\n
package<\/span> about_map<\/span>;<\/span>\r\n\r\n\/\/ Map\u306e\u30a4\u30f3\u30dd\u30fc\u30c8<\/span>\r\nimport<\/span> java.util.HashMap<\/span>;<\/span>\r\nimport<\/span> java.util.Map<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> MainAboutMap<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n\r\n        \/\/ \u3053\u3053\u304b\u3089 =====================================<\/span>\r\n      \/\/ 1\u3000new\u306e\u6642\u306b\u30ad\u30fc\u3068\u5024\u306e\u4e21\u65b9\u3092\u578b\u3068\u3057\u3066\u6307\u5b9a<\/span>\r\n        Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> sampleHashMap<\/span> =<\/span> new<\/span> HashMap<\/span><<\/span>String<\/span>,<\/span> String<\/span>>();<\/span> \r\n        \/\/ 2\u300cput\u300d\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u8ffd\u52a0\u3059\u308b<\/span>\r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30cb\u30d3\u30b8\u30e0\"<\/span>,<\/span> \"\u30bf\u30b1\u30b7\"<\/span>);<\/span> \r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30cf\u30ca\u30c0\u30b8\u30e0\"<\/span>,<\/span> \"\u30ab\u30b9\u30df\"<\/span>);<\/span>\r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30af\u30c1\u30d0\u30b8\u30e0\"<\/span>,<\/span> \"\u30de\u30c1\u30b9\"<\/span>);<\/span>\r\n        \/\/ \u3053\u3053\u307e\u3067 =====================================<\/span>\r\n\r\n        \/\/ 3 \u300cget\u300d\u3067\u30ad\u30fc\u5024\u3092\u6307\u5b9a\u3057\u3066\u51fa\u529b<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30cb\u30d3\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30cf\u30ca\u30c0\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30af\u30c1\u30d0\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30bf\u30de\u30e0\u30b7\u30b8\u30e0\"<\/span>));<\/span> \/\/null \u306b\u306a\u308b<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u8f93\u51fa\u7ed3\u679c<\/p>\n
\u30bf\u30b1\u30b7\r\n\u30ab\u30b9\u30df\r\n\u30de\u30c1\u30b9\r\nnull\r\n<\/code><\/pre>\n
\u8bf4\u89e3\u8aac\u9019\u6bb5\u7a0b\u5f0f\u78bc\u7684\u6b65\u9a5f\u662f…<\/p>\n
    \n
  1. \n
      \u5bfc\u5165\u5730\u56fe<\/ol>\n<\/li>\n<\/ol>\n
       <\/p>\n
        \n
      1. \n
          \u5728new\u7684\u65f6\u5019\u540c\u65f6\u6307\u5b9a\u952e\u548c\u503c\u7684\u7c7b\u578b<\/ol>\n<\/li>\n<\/ol>\n
           <\/p>\n
            \n
          1. \n
              \u4f7f\u7528”put”\u6dfb\u52a0\u503c<\/ol>\n<\/li>\n<\/ol>\n
               <\/p>\n
                \u4f7f\u7528”get”\u6307\u5b9a\u952e\u503c\u5e76\u8f93\u51fa<\/ol>\n
                \u63cf\u8ff0\u5982\u4e0b\u3002<\/p>\n
                \u5728\u5b9a\u4e49”new”\u65f6\u540c\u65f6\u6307\u5b9a\u952e\u548c\u503c\u4f5c\u4e3a\u7c7b\u578b\u3002\u5c06\u751f\u6210\u7684HashMap\u7c7b\u7684\u5b9e\u4f8b\u5b58\u50a8\u5728\u4e00\u4e2aMap[\u63a5\u53e3]\u7c7b\u578b\u7684\u53d8\u91cfsampleHashMap\u4e2d\u3002<\/p>\n
                      \/\/ 1\u3000new\u306e\u6642\u306b\u30ad\u30fc\u3068\u5024\u306e\u4e21\u65b9\u3092\u578b\u3068\u3057\u3066\u6307\u5b9a<\/span>\r\n        Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> sampleHashMap<\/span> =<\/span> new<\/span> HashMap<\/span><<\/span>String<\/span>,<\/span> String<\/span>>();<\/span>\r\n<\/code><\/pre>\n
                \u4f7f\u7528”put”\u6765\u6dfb\u52a0\u503c
                \n\u5728Map\uff08\u6620\u5c04\uff09\u7684\u63a5\u53e3\u4e2d\uff0c\u4e0d\u662f\u901a\u8fc7\u201cadd\u201d\u65b9\u6cd5\u6dfb\u52a0\u503c\uff0c\u800c\u662f\u901a\u8fc7\u540d\u4e3a\u201cput\u201d\u7684\u65b9\u6cd5\u6765\u6dfb\u52a0\u5143\u7d20\u3002<\/p>\n
                \u5728put\u65b9\u6cd5\u4e2d\u9700\u8981\u6307\u5b9a\u4e24\u4e2a\u53c2\u6570\u3002\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u952e\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u4e0e\u952e\u76f8\u5173\u8054\u7684\u503c\u3002<\/p>\n
                        \/\/ 2\u300cput\u300d\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u8ffd\u52a0\u3059\u308b<\/span>\r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30cb\u30d3\u30b8\u30e0\"<\/span>,<\/span> \"\u30bf\u30b1\u30b7\"<\/span>);<\/span> \r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30cf\u30ca\u30c0\u30b8\u30e0\"<\/span>,<\/span> \"\u30ab\u30b9\u30df\"<\/span>);<\/span>\r\n        sampleHashMap<\/span>.<\/span>put<\/span>(<\/span>\"\u30af\u30c1\u30d0\u30b8\u30e0\"<\/span>,<\/span> \"\u30de\u30c1\u30b9\"<\/span>);<\/span>\r\n<\/code><\/pre>\n
                \u4f7f\u7528\u300cget\u300d\u51fd\u6570\u901a\u8fc7\u952e\u503c\u6307\u5b9a\u8f93\u51fa\u5728\u63d0\u53d6\u503c\u65f6\uff0c\u8bf7\u4f7f\u7528get\u65b9\u6cd5\u3002<\/p>\n
                \u4f7f\u7528Map.get\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4ece\u5df2\u7ecf\u653e\u5165\u952e\u503c\u5bf9\u7684Map\u4e2d\u53d6\u51fa\u4e0e\u952e\u5bf9\u5e94\u7684\u503c\u3002\u5982\u679c\u952e\u6ca1\u6709\u88ab\u653e\u5165\uff0c\u5c06\u8fd4\u56denull\u3002<\/p>\n
                        \/\/ 3 \u300cget\u300d\u3067\u30ad\u30fc\u5024\u3092\u6307\u5b9a\u3057\u3066\u51fa\u529b<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30cb\u30d3\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30cf\u30ca\u30c0\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30af\u30c1\u30d0\u30b8\u30e0\"<\/span>));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>sampleHashMap<\/span>.<\/span>get<\/span>(<\/span>\"\u30bf\u30de\u30e0\u30b7\u30b8\u30e0\"<\/span>));<\/span> \/\/null \u306b\u306a\u308b<\/span>\r\n\r\n<\/code><\/pre>\n
                \u7ed9\u51fa \u306e \u7684\u5176\u4ed6\u6a21\u5f0f\u3010\u8865\u5145\u3011\u3002\u5728\u8fdb\u884cput\u64cd\u4f5c\u65f6\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\u6765\u6dfb\u52a0\u503c\u3002
                \n\u8bf7\u5c06\u6ce8\u91ca\u90e8\u5206\u4e0e\u4e0a\u8ff0\u4ee3\u7801\u90e8\u5206\u8fdb\u884c\u4ea4\u6362\u5e76\u4f7f\u7528\u3002
                \n\u867d\u7136\u505a\u7684\u4e8b\u60c5\u548c\u4e0a\u8ff0\u4ee3\u7801\u76f8\u540c\uff0c\u4f46\u8f93\u51fa\u7ed3\u679c\u4e5f\u662f\u76f8\u540c\u7684\u3002<\/p>\n
                        \/\/ \u3053\u3053\u304b\u3089 =====================================<\/span>\r\n        \/\/ 1 new\u306e\u6642\u306b\u30ad\u30fc\u3068\u5024\u306e\u4e21\u65b9\u3092\u578b\u3068\u3057\u3066\u6307\u5b9a<\/span>\r\n        Map<\/span><<\/span>String<\/span>,<\/span> String<\/span>><\/span> sampleHashMap<\/span> =<\/span> new<\/span> HashMap<\/span><<\/span>String<\/span>,<\/span> String<\/span>>();<\/span>\r\n        \/\/ 2\u300cput\u300d\u3092\u4f7f\u7528\u3057\u3066\u5024\u3092\u8ffd\u52a0\u3059\u308b<\/span>\r\n        sampleHashMap<\/span> =<\/span> new<\/span> HashMap<\/span><<\/span>String<\/span>,<\/span> String<\/span>>()<\/span> {<\/span>\r\n            {<\/span>\r\n                put<\/span>(<\/span>\"\u30cb\u30d3\u30b8\u30e0\"<\/span>,<\/span> \"\u30bf\u30b1\u30b7\"<\/span>);<\/span>\r\n                put<\/span>(<\/span>\"\u30cf\u30ca\u30c0\u30b8\u30e0\"<\/span>,<\/span> \"\u30ab\u30b9\u30df\"<\/span>);<\/span>\r\n                put<\/span>(<\/span>\"\u30af\u30c1\u30d0\u30b8\u30e0\"<\/span>,<\/span> \"\u30de\u30c1\u30b9\"<\/span>);<\/span>\r\n            }<\/span>\r\n        };<\/span>\r\n        \/\/ \u3053\u3053\u307e\u3067 =====================================<\/span>\r\n<\/code><\/pre>\n
                \u5f15\u7528\u6587\u732e\u548c\u6587\u7ae0<\/p>\n
                  \n
                • \n
                    Progate<\/ul>\n<\/li>\n<\/ul>\n
                     <\/p>\n
                      \n
                    • \n
                        \u30c9\u30c3\u30c8\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/ul>\n<\/li>\n<\/ul>\n
                         <\/p>\n
                          \n
                        • \n
                            \u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af (framework)<\/ul>\n<\/li>\n<\/ul>\n
                            \u3010Java\u5165\u9580\u3011ArrayList\u306e\u4f7f\u3044\u65b9\uff01\u914d\u5217\u3068\u306e\u9055\u3044\u3082\u89e3\u8aac<\/p>\n","protected":false},"excerpt":{"rendered":"
                            \u3010\u5730\u56fe\u3011\u4fdd\u6301\u952e\u548c\u503c\u7684\u6620\u5c04\u5173\u7cfb\u5728\u5904\u7406\u5173\u8054\u6570\u7ec4\u65f6\uff0c\u6709\u4e00\u4e2a\u79f0\u4e3a Map \u7684\u96c6\u5408\u53ef\u4ee5\u4f7f\u7528\u3002 \u5730\u56fe\u662f\u4ec0\u4e48\uff1f\u5730\u56fe\u7531\u4e24\u4e2a\u5143\u7d20 […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31155","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"\n\u3010Java\u3011java.util \u96c6\u5408\u6846\u67b6\uff08Map\uff09 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u3010Java\u3011java.util \u96c6\u5408\u6846\u67b6\uff08Map\uff09\u7684\u6280\u672f\u6587\u7ae0\" \/>\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.silicloud.com\/zh\/blog\/\u3010java\u3011java-util-\u96c6\u5408\u6846\u67b6\uff08map\uff09\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Java\u3011java.util \u96c6\u5408\u6846\u67b6\uff08Map\uff09\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u3010Java\u3011java.util \u96c6\u5408\u6846\u67b6\uff08Map\uff09\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010java\u3011java-util-\u96c6\u5408\u6846\u67b6\uff08map\uff09\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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