{"id":66308,"date":"2025-05-03T09:22:56","date_gmt":"2025-05-03T01:22:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66308\/"},"modified":"2025-05-03T09:22:56","modified_gmt":"2025-05-03T01:22:56","slug":"java%e6%80%8e%e4%b9%88%e8%b5%8b%e5%80%bc%e4%b8%a4%e4%b8%aa%e6%95%b0%e7%bb%84%e7%9b%b8%e7%ad%89-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66308\/","title":{"rendered":"java\u600e\u4e48\u8d4b\u503c\u4e24\u4e2a\u6570\u7ec4\u76f8\u7b49"},"content":{"rendered":"<blockquote><p>\n  \u4e3a\u4e86\u4f7f\u4e24\u4e2a java \u6570\u7ec4\u76f8\u7b49\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5185\u5bb9\u548c\u957f\u5ea6\u4e00\u81f4\u3002\u65b9\u6cd5\u6709\u4e8c\uff1a\u9010\u4e2a\u8d4b\u503c\uff1a\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e00\u8d4b\u503c\u3002arrays.equals() \u548c arrays.copyof() \u65b9\u6cd5\uff1a\u68c0\u67e5\u6570\u7ec4\u76f8\u7b49\u6027\uff0c\u514b\u9686\u8f83\u5c0f\u6570\u7ec4\u5e76\u8d4b\u503c\u7ed9\u8f83\u5927\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111506521458559.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u8d4b\u503c\u4e24\u4e2a\u6570\u7ec4\u76f8\u7b49\u63d2\u56fe\" alt=\"java\u600e\u4e48\u8d4b\u503c\u4e24\u4e2a\u6570\u7ec4\u76f8\u7b49\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8ba9\u4e24\u4e2a Java \u6570\u7ec4\u76f8\u7b49<\/strong><\/p>\n<p>\u4e3a\u4e86\u4f7f\u4e24\u4e2a Java \u6570\u7ec4\u76f8\u7b49\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u5185\u5bb9\u548c\u76f8\u540c\u7684\u957f\u5ea6\u3002\u4e0b\u9762\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff1a<\/p>\n<p><strong>1. \u9010\u4e2a\u5143\u7d20\u8d4b\u503c<\/strong><\/p>\n<p>\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e76\u9010\u4e2a\u5c06\u5176\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr1 = {1, 2, 3};\nint[] arr2 = new int[arr1.length];\n\nfor (int i = 0; i &lt; arr1.length; i++) {\n    arr2[i] = arr1[i];\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.equals() \u548c Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.equals() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u6307\u793a\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6307\u5b9a\u6570\u7ec4\u7684\u526f\u672c\u3002<\/p>\n<p>\u8981\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u76f8\u7b49\u5316\u4e24\u4e2a\u6570\u7ec4\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ul>\n<li>\u68c0\u67e5\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002\u5982\u679c\u4e0d\u662f\uff0c\u8bf7\u514b\u9686\u8f83\u5c0f\u7684\u6570\u7ec4\u3002<\/li>\n<li>\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u514b\u9686\u8f83\u5c0f\u7684\u6570\u7ec4\u3002<\/li>\n<li>\u5c06\u8f83\u5c0f\u6570\u7ec4\u7684\u526f\u672c\u8d4b\u503c\u7ed9\u8f83\u5927\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>int[] arr1 = {1, 2, 3};\nint[] arr2 = {1, 2, 3, 4};\n\nif (!Arrays.equals(arr1, arr2)) {\n    int[] copy = Arrays.copyOf(arr1, arr2.length);\n    arr2 = copy;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u8f7b\u677e\u5730\u4f7f\u4e24\u4e2a Java \u6570\u7ec4\u76f8\u7b49\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8d4b\u503c\u4e24\u4e2a\u6570\u7ec4\u76f8\u7b49\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>\u4e3a\u4e86\u4f7f\u4e24\u4e2a java \u6570\u7ec4\u76f8\u7b49\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5185\u5bb9\u548c\u957f\u5ea6\u4e00\u81f4\u3002\u65b9\u6cd5\u6709\u4e8c\uff1a\u9010\u4e2a\u8d4b\u503c\uff1a\u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u9010\u4e00\u8d4b\u503c\u3002arrays.equals() \u548c arrays.copyof() \u65b9\u6cd5\uff1a\u68c0\u67e5\u6570\u7ec4\u76f8\u7b49\u6027\uff0c\u514b\u9686\u8f83\u5c0f\u6570\u7ec4\u5e76\u8d4b\u503c\u7ed9\u8f83\u5927\u6570\u7ec4\u3002 \u5982\u4f55\u8ba9\u4e24\u4e2a Java \u6570\u7ec4\u76f8\u7b49 \u4e3a\u4e86\u4f7f\u4e24\u4e2a Java \u6570\u7ec4\u76f8\u7b49\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u5185\u5bb9\u548c\u76f8\u540c\u7684\u957f\u5ea6\u3002\u4e0b\u9762\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e00\u70b9\uff1a 1. \u9010\u4e2a\u5143\u7d20\u8d4b\u503c \u4f7f\u7528\u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e76\u9010\u4e2a\u5c06\u5176\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr1 = {1, 2, 3}; int[] arr2 = new int[arr1.length]; for (int i = 0; i &lt; arr1.length; i++) { arr2[i] = arr1[i]; } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.equals() \u548c Arrays.copyOf() \u65b9\u6cd5 Arrays.equals() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u6307\u793a\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6307\u5b9a\u6570\u7ec4\u7684\u526f\u672c\u3002 \u8981\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u76f8\u7b49\u5316\u4e24\u4e2a\u6570\u7ec4\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u68c0\u67e5\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u76f8\u7b49\u3002\u5982\u679c\u4e0d\u662f\uff0c\u8bf7\u514b\u9686\u8f83\u5c0f\u7684\u6570\u7ec4\u3002 \u4f7f\u7528 Arrays.copyOf() [&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-66308","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66308","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=66308"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66308\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66308"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66308"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66308"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}