{"id":66810,"date":"2025-05-03T13:21:07","date_gmt":"2025-05-03T05:21:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66810\/"},"modified":"2025-05-03T13:21:07","modified_gmt":"2025-05-03T05:21:07","slug":"java-%e6%80%8e%e4%b9%88%e6%8a%8a%e4%b8%a4%e4%b8%aa%e6%95%b0%e7%bb%84%e7%bb%84%e5%90%88-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66810\/","title":{"rendered":"java \u600e\u4e48\u628a\u4e24\u4e2a\u6570\u7ec4\u7ec4\u5408"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u5408\u5e76\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u9644\u52a0\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u76f4\u63a5\u5c06\u6570\u7ec4\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111710512486467.jpg\" class=\"aligncenter\" title=\"java \u600e\u4e48\u628a\u4e24\u4e2a\u6570\u7ec4\u7ec4\u5408\u63d2\u56fe\" alt=\"java \u600e\u4e48\u628a\u4e24\u4e2a\u6570\u7ec4\u7ec4\u5408\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u5408\u5e76\u4e24\u4e2a\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u91c7\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u7ec4\u5408\u4e24\u4e2a\u6570\u7ec4\u3002\u6700\u5e38\u89c1\u7684\u4e24\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 Arrays.copyOf() \u548c System.arraycopy()\u3002<\/p>\n<p><strong>\u4f7f\u7528 Arrays.copyOf()<\/strong><\/p>\n<p>Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u6307\u5b9a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\uff0c\u5e76\u53ef\u9009\u62e9\u6027\u5730\u9644\u52a0\u6307\u5b9a\u6570\u91cf\u7684\u65b0\u5143\u7d20\u3002\u8981\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] array1 = {1, 2, 3};\nint[] array2 = {4, 5, 6};\nint[] combinedArray = Arrays.copyOf(array1, array1.length + array2.length);\nSystem.arraycopy(array2, 0, combinedArray, array1.length, array2.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0ccombinedArray \u5c06\u5305\u542b [1, 2, 3, 4, 5, 6]\u3002<\/p>\n<p><strong>\u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n<p>System.arraycopy() \u65b9\u6cd5\u76f4\u63a5\u5c06\u6307\u5b9a\u6570\u7ec4\u7684\u90e8\u5206\u5185\u5bb9\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u8981\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>int[] array1 = {1, 2, 3};\nint[] array2 = {4, 5, 6};\nint[] combinedArray = new int[array1.length + array2.length];\nSystem.arraycopy(array1, 0, combinedArray, 0, array1.length);\nSystem.arraycopy(array2, 0, combinedArray, array1.length, array2.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e0e Arrays.copyOf() \u76f8\u6bd4\uff0cSystem.arraycopy() \u7684\u4f18\u52bf\u5728\u4e8e\u5b83\u53ef\u4ee5\u5728\u4e0d\u521b\u5efa\u65b0\u6570\u7ec4\u7684\u60c5\u51b5\u4e0b\u76f4\u63a5\u4fee\u6539\u73b0\u6709\u6570\u7ec4\u3002\u8fd9\u5728\u5904\u7406\u5927\u6570\u7ec4\u65f6\u53ef\u80fd\u5f88\u6709\u7528\uff0c\u56e0\u4e3a\u5206\u914d\u65b0\u6570\u7ec4\u53ef\u80fd\u4f1a\u6d88\u8017\u5927\u91cf\u5185\u5b58\u3002<\/p>\n<p><strong>\u9009\u62e9\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728\u9009\u62e9\u5408\u5e76\u6570\u7ec4\u7684\u65b9\u6cd5\u65f6\uff0c\u9700\u8981\u8003\u8651\u4ee5\u4e0b\u56e0\u7d20\uff1a<\/p>\n<ul>\n<li>\u6570\u7ec4\u5927\u5c0f<\/li>\n<li>\u662f\u5426\u9700\u8981\u4fee\u6539\u73b0\u6709\u6570\u7ec4<\/li>\n<li>\u6027\u80fd\u8981\u6c42<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u5c0f\u6570\u7ec4\uff0cArrays.copyOf() \u65b9\u6cd5\u901a\u5e38\u66f4\u7b80\u5355\u3001\u66f4\u9ad8\u6548\u3002\u5bf9\u4e8e\u5927\u6570\u7ec4\u6216\u9700\u8981\u4fee\u6539\u73b0\u6709\u6570\u7ec4\u7684\u60c5\u51b5\uff0cSystem.arraycopy() \u65b9\u6cd5\u662f\u4e00\u4e2a\u66f4\u597d\u7684\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava \u600e\u4e48\u628a\u4e24\u4e2a\u6570\u7ec4\u7ec4\u5408\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 \u4e2d\u5408\u5e76\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u9644\u52a0\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u76f4\u63a5\u5c06\u6570\u7ec4\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002 \u5982\u4f55\u7528 Java \u5408\u5e76\u4e24\u4e2a\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u91c7\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u7ec4\u5408\u4e24\u4e2a\u6570\u7ec4\u3002\u6700\u5e38\u89c1\u7684\u4e24\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528 Arrays.copyOf() \u548c System.arraycopy()\u3002 \u4f7f\u7528 Arrays.copyOf() Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u6307\u5b9a\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\uff0c\u5e76\u53ef\u9009\u62e9\u6027\u5730\u9644\u52a0\u6307\u5b9a\u6570\u91cf\u7684\u65b0\u5143\u7d20\u3002\u8981\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] array1 = {1, 2, 3}; int[] array2 = {4, 5, 6}; int[] combinedArray = Arrays.copyOf(array1, array1.length + array2.length); System.arraycopy(array2, 0, combinedArray, array1.length, array2.length); \u767b\u5f55\u540e\u590d\u5236 \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0ccombinedArray \u5c06\u5305\u542b [1, 2, 3, 4, 5, 6]\u3002 \u4f7f\u7528 System.arraycopy() [&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-66810","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66810","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=66810"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66810\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}