{"id":39844,"date":"2025-05-26T10:33:01","date_gmt":"2025-05-26T02:33:01","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/39844.html"},"modified":"2025-05-26T10:33:01","modified_gmt":"2025-05-26T02:33:01","slug":"%e5%92%8c-equals-%e7%9a%84%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/39844.html","title":{"rendered":"== \u548c equals \u7684\u533a\u522b"},"content":{"rendered":"<\/p>\n<h4>1.\u00a0&#061;&#061;\u00a0\u8fd0\u7b97\u7b26<\/h4>\n<ul>\n<li>\n<p>\u6bd4\u8f83\u7684\u662f\u5bf9\u8c61\u7684\u5f15\u7528&#xff08;\u5185\u5b58\u5730\u5740&#xff09;&#xff0c;\u5224\u65ad\u4e24\u4e2a\u5bf9\u8c61\u662f\u5426\u6307\u5411\u5806\u5185\u5b58\u4e2d\u7684\u540c\u4e00\u5757\u5730\u5740\u3002<\/p>\n<\/li>\n<li>\n<p>\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b&#xff08;\u5982\u00a0int,\u00a0char,\u00a0double\u00a0\u7b49&#xff09;&#xff0c;&#061;&#061;\u00a0\u76f4\u63a5\u6bd4\u8f83\u7684\u662f\u503c\u662f\u5426\u76f8\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b&#xff08;\u5982\u00a0String, \u81ea\u5b9a\u4e49\u7c7b\u5bf9\u8c61\u7b49&#xff09;&#xff0c;&#061;&#061;\u00a0\u6bd4\u8f83\u7684\u662f\u5f15\u7528\u662f\u5426\u76f8\u540c&#xff08;\u5373\u662f\u5426\u4e3a\u540c\u4e00\u4e2a\u5bf9\u8c61&#xff09;\u3002<\/p>\n<\/li>\n<\/ul>\n<p>String s1 &#061; new String(&#034;hello&#034;);<br \/>\nString s2 &#061; new String(&#034;hello&#034;);<br \/>\nString s3 &#061; s1;<\/p>\n<p>System.out.println(s1 &#061;&#061; s2); \/\/ false&#xff08;\u4e0d\u540c\u5bf9\u8c61&#xff0c;\u5730\u5740\u4e0d\u540c&#xff09;<br \/>\nSystem.out.println(s1 &#061;&#061; s3); \/\/ true&#xff08;s3 \u548c s1 \u6307\u5411\u540c\u4e00\u4e2a\u5bf9\u8c61&#xff09; <\/p>\n<h4>2.\u00a0equals()\u00a0\u65b9\u6cd5<\/h4>\n<ul>\n<li>\n<p>\u9ed8\u8ba4\u884c\u4e3a\u4e0e\u00a0&#061;&#061;\u00a0\u76f8\u540c&#xff08;\u6bd4\u8f83\u5f15\u7528&#xff09;&#xff0c;\u4f46\u901a\u5e38\u88ab\u91cd\u5199&#xff08;Override&#xff09;\u7528\u4e8e\u6bd4\u8f83\u5bf9\u8c61\u7684\u5185\u5bb9\u662f\u5426\u903b\u8f91\u76f8\u7b49\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f8b\u5982&#xff0c;String\u3001Integer\u00a0\u7b49\u7c7b\u91cd\u5199\u4e86\u00a0equals()&#xff0c;\u4f7f\u5176\u6bd4\u8f83\u7684\u662f\u5bf9\u8c61\u7684\u503c\u800c\u975e\u5f15\u7528\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u81ea\u5b9a\u4e49\u7c7b\u9700\u8981\u6bd4\u8f83\u5185\u5bb9&#xff0c;\u5fc5\u987b\u91cd\u5199\u00a0equals()&#xff08;\u540c\u65f6\u901a\u5e38\u4e5f\u8981\u91cd\u5199\u00a0hashCode()&#xff09;\u3002<\/p>\n<p> String s1 &#061; new String(&#034;hello&#034;);<br \/>\nString s2 &#061; new String(&#034;hello&#034;);<\/p>\n<p>System.out.println(s1.equals(s2)); \/\/ true&#xff08;String \u91cd\u5199\u4e86 equals&#xff0c;\u6bd4\u8f83\u5b57\u7b26\u5185\u5bb9&#xff09; <\/p>\n<h4>3. <font face=\"monospace\">\u603b\u7ed3<\/font><\/h4>\n<\/li>\n<li>\u5171\u540c\u70b9&#xff1a;\u90fd\u662f\u7528\u4e8e\u6bd4\u8f83\u64cd\u4f5c<\/li>\n<li>\u4e0d\u540c\u70b9&#xff1a;\u7528\u00a0&#061;&#061;\u00a0\u5224\u65ad\u662f\u5426\u4e3a\u540c\u4e00\u4e2a\u5bf9\u8c61&#xff08;\u6216\u57fa\u672c\u7c7b\u578b\u7684\u503c\u76f8\u7b49&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u7528\u00a0equals()\u00a0\u5224\u65ad\u5bf9\u8c61\u7684\u5185\u5bb9\u662f\u5426\u903b\u8f91\u76f8\u7b49&#xff08;\u9700\u6ce8\u610f\u662f\u5426\u88ab\u6b63\u786e\u91cd\u5199&#xff09;\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb497\u6b21\u3002\uff08\u6bd4\u8f83\u5f15\u7528\uff09\uff0c\u4f46\u901a\u5e38\u88ab\u91cd\u5199\uff08Override\uff09\u7528\u4e8e\u6bd4\u8f83\u5bf9\u8c61\u7684\u3002\uff0c\u5224\u65ad\u4e24\u4e2a\u5bf9\u8c61\u662f\u5426\u6307\u5411\u5806\u5185\u5b58\u4e2d\u7684\u540c\u4e00\u5757\u5730\u5740\u3002\u5982\u679c\u81ea\u5b9a\u4e49\u7c7b\u9700\u8981\u6bd4\u8f83\u5185\u5bb9\uff0c\u5fc5\u987b\u91cd\u5199\u3002\uff0c\u4f7f\u5176\u6bd4\u8f83\u7684\u662f\u5bf9\u8c61\u7684\u503c\u800c\u975e\u5f15\u7528\u3002\uff08\u9700\u6ce8\u610f\u662f\u5426\u88ab\u6b63\u786e\u91cd\u5199\uff09\u3002\uff08\u5373\u662f\u5426\u4e3a\u540c\u4e00\u4e2a\u5bf9\u8c61\uff09\u3002\u5bf9\u4e8e\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff08\u5982\u3002, \u81ea\u5b9a\u4e49\u7c7b\u5bf9\u8c61\u7b49\uff09\uff0c<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[99],"topic":[],"class_list":["post-39844","post","type-post","status-publish","format-standard","hentry","category-server","tag-java"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - 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