{"id":64650,"date":"2025-05-03T17:59:44","date_gmt":"2025-05-03T09:59:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64650\/"},"modified":"2025-05-03T17:59:44","modified_gmt":"2025-05-03T09:59:44","slug":"%e5%9c%a8java%e4%b8%ad%e6%80%8e%e4%b9%88%e6%af%94%e8%be%83%e4%b8%a4%e4%b8%aa%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64650\/","title":{"rendered":"\u5728java\u4e2d\u600e\u4e48\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u6bd4\u8f83\u4e24\u4e2a java \u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u57fa\u7840\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.equals() \u9010\u5143\u7d20\u6bd4\u8f83\u5143\u7d20\uff0c\u6216 == \u6bd4\u8f83\u5f15\u7528\u3002\u5bf9\u8c61\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.deepequals() \u9010\u5143\u7d20\u6bd4\u8f83\u5143\u7d20\uff08\u5305\u62ec\u5d4c\u5957\u6570\u7ec4\uff09\uff0c\u6216 == \u6bd4\u8f83\u5f15\u7528\u3002\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff1a\u5b9e\u73b0 equals() \u65b9\u6cd5\u8fdb\u884c\u81ea\u5b9a\u4e49\u6bd4\u8f83\uff0c\u6216\u4f7f\u7528 == \u6bd4\u8f83\u5f15\u7528\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110405272241090.jpg\" class=\"aligncenter\" title=\"\u5728java\u4e2d\u600e\u4e48\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u63d2\u56fe\" alt=\"\u5728java\u4e2d\u600e\u4e48\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u6bd4\u8f83\u4e24\u4e2a Java \u6570\u7ec4<\/strong><\/p>\n<p>\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u5728 Java \u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u53d6\u51b3\u4e8e\u6bd4\u8f83\u7684\u7c7b\u578b\u53ca\u5176\u5927\u5c0f\u3002<\/p>\n<p><strong>\u57fa\u7840\u7c7b\u578b\u6570\u7ec4\uff08\u5982 int[]\u3001double[] \u7b49\uff09<\/strong><\/p>\n<ul>\n<li> <strong>Arrays.equals()<\/strong>\uff1a\u9010\u5143\u7d20\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u5143\u7d20\u3002\u5982\u679c\u6240\u6709\u5143\u7d20\u90fd\u76f8\u7b49\uff0c\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002<\/li>\n<\/ul>\n<pre>int[] arr1 = {1, 2, 3};\nint[] arr2 = {1, 2, 3};\nSystem.out.println(Arrays.equals(arr1, arr2)); \/\/ \u8f93\u51fa: true<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>== \u8fd0\u7b97\u7b26<\/strong>\uff1a\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u7684\u5185\u5bb9\u3002\u5982\u679c\u4e24\u4e2a\u6570\u7ec4\u5f15\u7528\u76f8\u540c\u7684\u5e95\u5c42\u6570\u7ec4\uff0c\u5219\u4e3a true\uff0c\u5426\u5219\u4e3a false\u3002<\/li>\n<\/ul>\n<pre>int[] arr1 = {1, 2, 3};\nint[] arr2 = arr1;\nSystem.out.println(arr1 == arr2); \/\/ \u8f93\u51fa: true<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5bf9\u8c61\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li> <strong>Arrays.deepEquals()<\/strong>\uff1a\u9010\u5143\u7d20\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u6570\u7ec4\u7684\u5143\u7d20\uff0c\u5305\u62ec\u5d4c\u5957\u6570\u7ec4\u3002\u5982\u679c\u6240\u6709\u5143\u7d20\u90fd\u76f8\u7b49\uff08\u5305\u62ec\u5d4c\u5957\u6570\u7ec4\uff09\uff0c\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002<\/li>\n<\/ul>\n<pre>String[] arr1 = {\"a\", \"b\", \"c\"};\nString[] arr2 = {\"a\", \"b\", \"c\"};\nSystem.out.println(Arrays.deepEquals(arr1, arr2)); \/\/ \u8f93\u51fa: true<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>== \u8fd0\u7b97\u7b26<\/strong>\uff1a\u4e0e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u7c7b\u4f3c\uff0c\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n<p><strong>\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4<\/strong><\/p>\n<ul>\n<li> <strong>\u81ea\u5b9e\u73b0\u65b9\u6cd5<\/strong>\uff1a\u7531\u4e8e\u6ca1\u6709\u901a\u7528\u7684 Arrays.equals() \u65b9\u6cd5\uff0c\u5bf9\u4e8e\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff0c\u5fc5\u987b\u5b9e\u73b0\u81ea\u5df1\u7684\u6bd4\u8f83\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<pre>class MyArray {\n    int[] arr;\n\n    @Override\n    public boolean equals(Object obj) {\n        if (obj instanceof MyArray) {\n            MyArray other = (MyArray) obj;\n            return Arrays.equals(this.arr, other.arr);\n        }\n        return false;\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li> <strong>== \u8fd0\u7b97\u7b26<\/strong>\uff1a\u4e5f\u9002\u7528\u4e8e\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff0c\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5728java\u4e2d\u600e\u4e48\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6bd4\u8f83\u4e24\u4e2a java \u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u57fa\u7840\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.equals() \u9010\u5143\u7d20\u6bd4\u8f83\u5143\u7d20\uff0c\u6216 == \u6bd4\u8f83\u5f15\u7528\u3002\u5bf9\u8c61\u7c7b\u578b\u6570\u7ec4\uff1a\u4f7f\u7528 arrays.deepequals() \u9010\u5143\u7d20\u6bd4\u8f83\u5143\u7d20\uff08\u5305\u62ec\u5d4c\u5957\u6570\u7ec4\uff09\uff0c\u6216 == \u6bd4\u8f83\u5f15\u7528\u3002\u81ea\u5b9a\u4e49\u7c7b\u578b\u6570\u7ec4\uff1a\u5b9e\u73b0 equals() \u65b9\u6cd5\u8fdb\u884c\u81ea\u5b9a\u4e49\u6bd4\u8f83\uff0c\u6216\u4f7f\u7528 == \u6bd4\u8f83\u5f15\u7528\u3002 \u5982\u4f55\u6bd4\u8f83\u4e24\u4e2a Java \u6570\u7ec4 \u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u5728 Java \u4e2d\u6709\u51e0\u79cd\u65b9\u6cd5\uff0c\u53d6\u51b3\u4e8e\u6bd4\u8f83\u7684\u7c7b\u578b\u53ca\u5176\u5927\u5c0f\u3002 \u57fa\u7840\u7c7b\u578b\u6570\u7ec4\uff08\u5982 int[]\u3001double[] \u7b49\uff09 Arrays.equals()\uff1a\u9010\u5143\u7d20\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u5143\u7d20\u3002\u5982\u679c\u6240\u6709\u5143\u7d20\u90fd\u76f8\u7b49\uff0c\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002 int[] arr1 = {1, 2, 3}; int[] arr2 = {1, 2, 3}; System.out.println(Arrays.equals(arr1, arr2)); \/\/ \u8f93\u51fa: true \u767b\u5f55\u540e\u590d\u5236 == \u8fd0\u7b97\u7b26\uff1a\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u7684\u5185\u5bb9\u3002\u5982\u679c\u4e24\u4e2a\u6570\u7ec4\u5f15\u7528\u76f8\u540c\u7684\u5e95\u5c42\u6570\u7ec4\uff0c\u5219\u4e3a true\uff0c\u5426\u5219\u4e3a false\u3002 int[] arr1 = {1, 2, 3}; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-64650","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64650","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=64650"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64650\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}