{"id":37404,"date":"2023-12-11T14:41:19","date_gmt":"2023-12-11T06:41:19","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=37404"},"modified":"2023-12-11T14:41:19","modified_gmt":"2023-12-11T06:41:19","slug":"hashmap-%e5%92%8c-hashset%e5%8c%ba%e5%88%ab%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/hashmap-%e5%92%8c-hashset%e5%8c%ba%e5%88%ab%ef%bc%9f\/","title":{"rendered":"HashMap \u548c HashSet\u533a\u522b\uff1f"},"content":{"rendered":"<p>&#8220;`&#8221;                    \u5982\u679c\u4f60\u770b\u8fc7 <code>HashSet<\/code> \u6e90\u7801\u7684\u8bdd\u5c31\u5e94\u8be5\u77e5\u9053\uff1a<\/p>\n<p>HashSet \u5e95\u5c42\u5c31\u662f\u57fa\u4e8e HashMap \u5b9e\u73b0\u7684\u3002\uff08HashSet \u7684\u6e90\u7801\u975e\u5e38\u975e\u5e38\u5c11\uff0c\u56e0\u4e3a\u9664\u4e86 &lt;code&gt;clone()&lt;\/code&gt;\u3001&lt;code&gt;writeObject()&lt;\/code&gt;\u3001&lt;code&gt;readObject()&lt;\/code&gt;\u662f HashSet \u81ea\u5df1\u4e0d\u5f97\u4e0d\u5b9e\u73b0\u4e4b\u5916\uff0c\u5176\u4ed6\u65b9\u6cd5\u90fd\u662f\u76f4\u63a5\u8c03\u7528 HashMap \u4e2d\u7684\u65b9\u6cd5\u3002<\/p>\n<p>&lt;br&gt;<\/p>\n<p>&lt;table class=&quot;&quot;table table-bordered&quot;&quot;&gt;&lt;tbody&gt;&lt;tr&gt;&lt;td&gt;&lt;b&gt;HashMap&lt;\/b&gt;&lt;br&gt;&lt;\/td&gt;&lt;td&gt;&lt;b&gt;HashSet&lt;\/b&gt;&lt;br&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;tr&gt;&lt;td&gt;\u5b9e\u73b0\u4e86Map\u63a5\u53e3&lt;br&gt;&lt;\/td&gt;&lt;td&gt;\u5b9e\u73b0Set\u63a5\u53e3&lt;br&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;tr&gt;&lt;td&gt;\u5b58\u50a8\u952e\u503c\u5bf9&lt;br&gt;&lt;\/td&gt;&lt;td&gt;\u4ec5\u5b58\u50a8\u5bf9\u8c61&lt;\/p&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;tr&gt;&lt;td&gt;\u8c03\u7528 put() \u5411map\u4e2d\u6dfb\u52a0\u5143\u7d20&lt;br&gt;&lt;\/td&gt;&lt;td&gt;\u8c03\u7528 add\uff08\uff09\u65b9\u6cd5\u5411Set\u4e2d\u6dfb\u52a0\u5143\u7d20&lt;br&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;tr&gt;&lt;td&gt;HashMap\u4f7f\u7528\u952e\uff08Key\uff09\u8ba1\u7b97Hashcode&lt;br&gt;&lt;\/td&gt;&lt;td&gt;HashSet\u4f7f\u7528\u6210\u5458\u5bf9\u8c61\u6765\u8ba1\u7b97hashcode\u503c\uff0c\u5bf9\u4e8e\u4e24\u4e2a\u5bf9\u8c61\u6765\u8bf4hashcode\u53ef\u80fd\u76f8\u540c\uff0c\u6240\u4ee5equals()\u65b9\u6cd5\u7528\u6765\u5224\u65ad\u5bf9\u8c61\u7684\u76f8\u7b49\u6027&lt;br&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;tr&gt;&lt;td&gt;&lt;br&gt;&lt;\/td&gt;&lt;td&gt;&lt;br&gt;&lt;\/td&gt;&lt;\/tr&gt;&lt;\/tbody&gt;&lt;\/table&gt;<\/p>\n<p>&lt;p&gt;&lt;br&gt;<\/p>\n<p>&lt;pre&gt;&lt;code&gt;            &quot;&#8220;`<br \/>\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;`&#8221; \u5982\u679c\u4f60\u770b\u8fc7 HashSet \u6e90\u7801\u7684\u8bdd\u5c31\u5e94\u8be5\u77e5\u9053\uff1a HashSet \u5e95\u5c42\u5c31\u662f\u57fa\u4e8e [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-37404","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/37404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=37404"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/37404\/revisions"}],"predecessor-version":[{"id":37405,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/37404\/revisions\/37405"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=37404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=37404"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=37404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}