{"id":66082,"date":"2025-05-03T13:04:07","date_gmt":"2025-05-03T05:04:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66082\/"},"modified":"2025-05-03T13:04:07","modified_gmt":"2025-05-03T05:04:07","slug":"java%e6%80%8e%e4%b9%88%e5%a4%8d%e5%88%b6%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e4%b8%ad-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66082\/","title":{"rendered":"java\u600e\u4e48\u590d\u5236\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u590d\u5236\u5b57\u7b26\u4e32\u6570\u7ec4\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u76f4\u63a5\u8d4b\u503c\uff08\u521b\u5efa\u539f\u59cb\u6570\u7ec4\u7684\u5f15\u7528\uff09\u4f7f\u7528 clone() \u65b9\u6cd5\uff08\u521b\u5efa\u6307\u5b9a\u6570\u7ec4\u7684\u975e\u6d45\u8868\u526f\u672c\uff09\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff08\u590d\u5236\u6307\u5b9a\u8303\u56f4\u7684\u5143\u7d20\uff09\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff08\u8fd4\u56de\u6307\u5b9a\u6570\u7ec4\u7684\u65b0\u526f\u672c\uff09\u4f7f\u7528 lists\uff08\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u518d\u8f6c\u6362\u4e3a\u65b0\u7684\u6570\u7ec4\uff09\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111413394714874.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u590d\u5236\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u63d2\u56fe\" alt=\"java\u600e\u4e48\u590d\u5236\u5b57\u7b26\u4e32\u6570\u7ec4\u4e2d\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u590d\u5236<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u8d4b\u503c\uff1a<\/strong><\/p>\n<p>\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5c06\u4e00\u4e2a\u6570\u7ec4\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ea\u662f\u521b\u5efa\u4e86\u5bf9\u539f\u59cb\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u4e00\u4efd\u526f\u672c\u3002\u8981\u521b\u5efa\u526f\u672c\uff0c\u8bf7\u4f7f\u7528 clone() \u65b9\u6cd5\u3002<\/p>\n<p><strong>\u4f7f\u7528 clone()\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>clone() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6307\u5b9a\u6570\u7ec4\u7684\u975e\u6d45\u8868\u526f\u672c\u3002\u5373\uff0c\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u5bf9\u8c61\u7684\u526f\u672c\uff0c\u800c\u4e0d\u662f\u5bf9\u8c61\u672c\u8eab\u3002<\/p>\n<pre>String[] originalArray = {\"a\", \"b\", \"c\"};\nString[] clonedArray = originalArray.clone();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 System.arraycopy()\uff1a<\/strong><\/p>\n<p>System.arraycopy() \u65b9\u6cd5\u53ef\u4ee5\u4ece\u6307\u5b9a\u7684\u6e90\u6570\u7ec4\u590d\u5236\u6307\u5b9a\u8303\u56f4\u7684\u5143\u7d20\u5230\u6307\u5b9a\u7684\u76ee\u7684\u5730\u6570\u7ec4\u3002<\/p>\n<pre>String[] originalArray = {\"a\", \"b\", \"c\"};\nString[] clonedArray = new String[originalArray.length];\nSystem.arraycopy(originalArray, 0, clonedArray, 0, originalArray.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Arrays.copyOf()\uff1a<\/strong><\/p>\n<p>Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6307\u5b9a\u6570\u7ec4\u7684\u65b0\u526f\u672c\u3002<\/p>\n<pre>String[] originalArray = {\"a\", \"b\", \"c\"};\nString[] clonedArray = Arrays.copyOf(originalArray, originalArray.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 Lists\uff1a<\/strong><\/p>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528 java.util.List \u5c06\u5b57\u7b26\u4e32\u6570\u7ec4\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5217\u8868\uff0c\u7136\u540e\u5c06\u5217\u8868\u8f6c\u6362\u4e3a\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u3002<\/p>\n<pre>List&lt;String&gt; list = new ArrayList&lt;&gt;(Arrays.asList(originalArray));\nString[] clonedArray = list.toArray(new String[0]);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u590d\u5236\u4e2d\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>\u5728 java \u4e2d\u590d\u5236\u5b57\u7b26\u4e32\u6570\u7ec4\u7684\u65b9\u6cd5\u5305\u62ec\uff1a\u76f4\u63a5\u8d4b\u503c\uff08\u521b\u5efa\u539f\u59cb\u6570\u7ec4\u7684\u5f15\u7528\uff09\u4f7f\u7528 clone() \u65b9\u6cd5\uff08\u521b\u5efa\u6307\u5b9a\u6570\u7ec4\u7684\u975e\u6d45\u8868\u526f\u672c\uff09\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff08\u590d\u5236\u6307\u5b9a\u8303\u56f4\u7684\u5143\u7d20\uff09\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff08\u8fd4\u56de\u6307\u5b9a\u6570\u7ec4\u7684\u65b0\u526f\u672c\uff09\u4f7f\u7528 lists\uff08\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a\u5217\u8868\uff0c\u518d\u8f6c\u6362\u4e3a\u65b0\u7684\u6570\u7ec4\uff09 \u5982\u4f55\u5728 Java \u4e2d\u590d\u5236 \u76f4\u63a5\u8d4b\u503c\uff1a \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5c06\u4e00\u4e2a\u6570\u7ec4\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf\u3002\u4f46\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u53ea\u662f\u521b\u5efa\u4e86\u5bf9\u539f\u59cb\u6570\u7ec4\u7684\u5f15\u7528\uff0c\u800c\u4e0d\u662f\u521b\u5efa\u4e00\u4efd\u526f\u672c\u3002\u8981\u521b\u5efa\u526f\u672c\uff0c\u8bf7\u4f7f\u7528 clone() \u65b9\u6cd5\u3002 \u4f7f\u7528 clone()\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b clone() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u6307\u5b9a\u6570\u7ec4\u7684\u975e\u6d45\u8868\u526f\u672c\u3002\u5373\uff0c\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u5bf9\u8c61\u7684\u526f\u672c\uff0c\u800c\u4e0d\u662f\u5bf9\u8c61\u672c\u8eab\u3002 String[] originalArray = {&#8220;a&#8221;, &#8220;b&#8221;, &#8220;c&#8221;}; String[] clonedArray = originalArray.clone(); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 System.arraycopy()\uff1a System.arraycopy() \u65b9\u6cd5\u53ef\u4ee5\u4ece\u6307\u5b9a\u7684\u6e90\u6570\u7ec4\u590d\u5236\u6307\u5b9a\u8303\u56f4\u7684\u5143\u7d20\u5230\u6307\u5b9a\u7684\u76ee\u7684\u5730\u6570\u7ec4\u3002 String[] originalArray = {&#8220;a&#8221;, &#8220;b&#8221;, &#8220;c&#8221;}; String[] clonedArray = new String[originalArray.length]; System.arraycopy(originalArray, 0, clonedArray, 0, originalArray.length); \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 [&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-66082","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66082","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=66082"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66082\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}