{"id":64309,"date":"2025-05-03T13:26:51","date_gmt":"2025-05-03T05:26:51","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64309\/"},"modified":"2025-05-03T13:26:51","modified_gmt":"2025-05-03T05:26:51","slug":"java%e6%80%8e%e4%b9%88%e5%9c%a8%e6%95%b0%e7%bb%84%e9%87%8c%e9%9d%a2%e6%af%94%e5%a4%a7%e5%b0%8f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64309\/","title":{"rendered":"java\u600e\u4e48\u5728\u6570\u7ec4\u91cc\u9762\u6bd4\u5927\u5c0f"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u5143\u7d20\u6bd4\u8f83\u65b9\u6cd5\uff1a\u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26\u9010\u4e2a\u5143\u7d20\u6bd4\u8f83\uff08==\u3001!=\u3001=\uff09\uff1b\u4f7f\u7528 arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u6570\u7ec4\u957f\u5ea6\u548c\u5143\u7d20\u987a\u5e8f\uff1b\u5bf9\u4e8e\u590d\u6742\u9700\u6c42\uff0c\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\uff08\u5b9e\u73b0 comparator \u63a5\u53e3\uff0c\u5b9a\u4e49 compare() \u65b9\u6cd5\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110304364211880.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u5728\u6570\u7ec4\u91cc\u9762\u6bd4\u5927\u5c0f\u63d2\u56fe\" alt=\"java\u600e\u4e48\u5728\u6570\u7ec4\u91cc\u9762\u6bd4\u5927\u5c0f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u6570\u7ec4\u4e2d\u6bd4\u8f83\u5143\u7d20<\/strong><\/p>\n<p>\u5728 Java \u6570\u7ec4\u4e2d\u6bd4\u8f83\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u51e0\u79cd\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/strong><\/p>\n<p>\u6bd4\u8f83\u8fd0\u7b97\u7b26 (==\u3001!=\u3001\u3001&gt;=) \u53ef\u7528\u4e8e\u9010\u4e2a\u5143\u7d20\u5730\u6bd4\u8f83\u6570\u7ec4\u3002\u5982\u679c\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff0c\u5219\u4e24\u4e2a\u5143\u7d20\u76f8\u7b49\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\u5b83\u4eec\u6307\u5411\u540c\u4e00\u5bf9\u8c61\uff08\u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\uff09<\/li>\n<li>\u6216\u8005\u5b83\u4eec\u7684\u539f\u59cb\u7c7b\u578b\u503c\u76f8\u7b49\uff08\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\uff09<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[] arr = {1, 2, 3, 4};\n\nif (arr[0] == arr[1]) {\n    System.out.println(\"arr[0] \u548c arr[1] \u76f8\u7b49\");\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.equals() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u5177\u6709\u76f8\u540c\u957f\u5ea6\u548c\u76f8\u540c\u5143\u7d20\u987a\u5e8f\u3002\u5982\u679c\u4e24\u4e2a\u6570\u7ec4\u5177\u6709\u76f8\u540c\u957f\u5ea6\u4e14\u6bcf\u4e2a\u5143\u7d20\u90fd\u76f8\u7b49\uff0c\u5219\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[] arr1 = {1, 2, 3, 4};\nint[] arr2 = {1, 2, 3, 4};\n\nif (Arrays.equals(arr1, arr2)) {\n    System.out.println(\"arr1 \u548c arr2 \u76f8\u7b49\");\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668<\/strong><\/p>\n<p>\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u6bd4\u8f83\u9700\u6c42\uff0c\u53ef\u4ee5\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u3002\u6bd4\u8f83\u5668\u662f\u4e00\u4e2a\u5b9e\u73b0 Comparator \u63a5\u53e3\u7684\u7c7b\uff0c\u8be5\u63a5\u53e3\u5b9a\u4e49\u4e86 compare() \u65b9\u6cd5\uff0c\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>Comparator&lt;Integer&gt; comparator = (a, b) -&gt; a - b;\nArrays.sort(arr, comparator);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u793a\u4f8b\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\u5bf9 arr \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6309\u5347\u5e8f\u6392\u5e8f\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5728\u6570\u7ec4\u91cc\u9762\u6bd4\u5927\u5c0f\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>java \u6570\u7ec4\u5143\u7d20\u6bd4\u8f83\u65b9\u6cd5\uff1a\u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26\u9010\u4e2a\u5143\u7d20\u6bd4\u8f83\uff08==\u3001!=\u3001=\uff09\uff1b\u4f7f\u7528 arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u6570\u7ec4\u957f\u5ea6\u548c\u5143\u7d20\u987a\u5e8f\uff1b\u5bf9\u4e8e\u590d\u6742\u9700\u6c42\uff0c\u4f7f\u7528\u81ea\u5b9a\u4e49\u6bd4\u8f83\u5668\uff08\u5b9e\u73b0 comparator \u63a5\u53e3\uff0c\u5b9a\u4e49 compare() \u65b9\u6cd5\uff09\u3002 \u5982\u4f55\u5728 Java \u6570\u7ec4\u4e2d\u6bd4\u8f83\u5143\u7d20 \u5728 Java \u6570\u7ec4\u4e2d\u6bd4\u8f83\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u51e0\u79cd\uff1a 1. \u4f7f\u7528\u6bd4\u8f83\u8fd0\u7b97\u7b26 \u6bd4\u8f83\u8fd0\u7b97\u7b26 (==\u3001!=\u3001\u3001&gt;=) \u53ef\u7528\u4e8e\u9010\u4e2a\u5143\u7d20\u5730\u6bd4\u8f83\u6570\u7ec4\u3002\u5982\u679c\u540c\u65f6\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff0c\u5219\u4e24\u4e2a\u5143\u7d20\u76f8\u7b49\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5b83\u4eec\u6307\u5411\u540c\u4e00\u5bf9\u8c61\uff08\u5bf9\u4e8e\u5f15\u7528\u7c7b\u578b\uff09 \u6216\u8005\u5b83\u4eec\u7684\u539f\u59cb\u7c7b\u578b\u503c\u76f8\u7b49\uff08\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\uff09 \u793a\u4f8b\uff1a int[] arr = {1, 2, 3, 4}; if (arr[0] == arr[1]) { System.out.println(&#8220;arr[0] \u548c arr[1] \u76f8\u7b49&#8221;); } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.equals() \u65b9\u6cd5 Arrays.equals() \u65b9\u6cd5\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u5177\u6709\u76f8\u540c\u957f\u5ea6\u548c\u76f8\u540c\u5143\u7d20\u987a\u5e8f\u3002\u5982\u679c\u4e24\u4e2a\u6570\u7ec4\u5177\u6709\u76f8\u540c\u957f\u5ea6\u4e14\u6bcf\u4e2a\u5143\u7d20\u90fd\u76f8\u7b49\uff0c\u5219\u8fd4\u56de true\uff0c\u5426\u5219\u8fd4\u56de false\u3002 \u793a\u4f8b\uff1a int[] arr1 = {1, 2, [&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-64309","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64309","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=64309"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64309\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}