{"id":203194,"date":"2025-05-22T10:39:12","date_gmt":"2025-05-22T02:39:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203194\/"},"modified":"2025-05-22T10:39:12","modified_gmt":"2025-05-22T02:39:12","slug":"java-%e4%b8%ad-hashmap-%e5%ae%9e%e4%be%8b%ef%bc%9a-somevar-new-hashmap-%e5%a6%82%e4%bd%95%e7%94%a8%e5%a4%a7%e7%99%bd%e8%af%9d%e8%a7%a3%e9%87%8a%e8%bf%99%e8%a1%8c%e4%bb%a3%e7%a0%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203194\/","title":{"rendered":"Java \u4e2d HashMap \u5b9e\u4f8b\uff1a someVar = new HashMap(); \u5982\u4f55\u7528\u5927\u767d\u8bdd\u89e3\u91ca\u8fd9\u884c\u4ee3\u7801\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java \u4e2d HashMap \u5b9e\u4f8b\uff1a someVar = new HashMap (); \u5982\u4f55\u7528\u5927\u767d\u8bdd\u89e3\u91ca\u8fd9\u884c\u4ee3\u7801\uff1f <\/h1>\n

\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u90a3\u4e48\u672c\u6587\u300aJava \u4e2d HashMap \u5b9e\u4f8b\uff1a someVar = new HashMap (); \u5982\u4f55\u7528\u5927\u767d\u8bdd\u89e3\u91ca\u8fd9\u884c\u4ee3\u7801\uff1f\u300b <\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n

someVar = new HashMap (); \u5982\u4f55\u7528\u5927\u767d\u8bdd\u89e3\u91ca\u8fd9\u884c\u4ee3\u7801\uff1f” \/> <\/p>\n

hashmap\u65b0\u5b9e\u4f8b\uff1a\u7c7b\u578b\u7406\u89e3<\/strong><\/p>\n

\u5982\u4f55\u89e3\u8bfb\u4ee5\u4e0b\u4ee3\u7801\uff1f<\/p>\n

<string,object> somevar = new hashmap<string,object>();  \/\/\u4ecejs\u8f6cjava\u7684\uff0c\u600e\u4e48\u7406\u89e3\u8fd9\u53e5\u4ee3\u7801\uff0c\u7528\u5927\u767d\u8bdd\uff1f<\/pre>\n
\u89e3\u7b54\uff1a<\/strong><\/p>\n
<string,object> somevar = new hashmap<string,object>();<\/p>\n
\u8fd9\u4e00\u884c\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u540d\u4e3asomevar\u7684\u65b0\u53d8\u91cf\uff0c\u5b83\u7684\u7c7b\u578b\u662fmap<string,object>\u3002map\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u952e\u503c\u5bf9\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u952e\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\uff0c\u800c\u503c\u662f\u5bf9\u8c61\u7c7b\u578b\u3002<\/p>\n
\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u4f7f\u7528somevar\u4fdd\u5b58\u5404\u79cd\u7c7b\u578b\u7684\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/p>\n
somevar.put(\"hello\", \"world\");  \/\/\u952e\u4e3a\"hello\"\uff0c\u503c\u4e3a\u5b57\u7b26\u4e32\"world\"\nsomevar.put(\"intvalue\", 23);    \/\/\u952e\u4e3a\"intvalue\"\uff0c\u503c\u4e3a\u6574\u657023<\/pre>\n
\u7a0d\u540e\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u952e\u6765\u83b7\u53d6\u8fd9\u4e9b\u503c\uff1a<\/p>\n
String world = (String) someVar.get(\"hello\");  \/\/\u83b7\u53d6\"hello\"\u5bf9\u5e94\u7684\u503c\uff0c\u5e76\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\nint intValue = (int) someVar.get(\"intValue\");    \/\/\u83b7\u53d6\"intValue\"\u5bf9\u5e94\u7684\u503c\uff0c\u5e76\u8f6c\u6362\u4e3a\u6574\u6570<\/pre>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aJava \u4e2d HashMap \u5b9e\u4f8b\uff1a  someVar = new HashMap  (); \u5982\u4f55\u7528\u5927\u767d\u8bdd\u89e3\u91ca\u8fd9\u884c\u4ee3\u7801\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01  <\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u4e2d HashMap \u5b9e...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203194","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203194","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203194"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203194\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}