{"id":65363,"date":"2025-05-03T12:51:55","date_gmt":"2025-05-03T04:51:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65363\/"},"modified":"2025-05-03T12:51:55","modified_gmt":"2025-05-03T04:51:55","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e5%a4%8d%e5%88%b6-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65363\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u7ec4\u590d\u5236"},"content":{"rendered":"

\n java \u4e2d\u590d\u5236\u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a1. \u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u526f\u672c\u6570\u7ec4\uff1b2. \u4f7f\u7528 system.arraycopy() \u5728\u5df2\u5206\u914d\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u3002arrays.copyof() \u66f4\u7b80\u5355\u9ad8\u6548\uff0csystem.arraycopy() \u66f4\u7075\u6d3b\uff0c\u53ef\u6307\u5b9a\u8d77\u59cb\u7d22\u5f15\u548c\u590d\u5236\u957f\u5ea6\u3002\u590d\u5236\u540e\uff0c\u6570\u7ec4\u4e4b\u95f4\u4e92\u4e0d\u5f71\u54cd\uff0c\u4e14\u5982\u679c\u6570\u7ec4\u5305\u542b\u5bf9\u8c61\uff0c\u590d\u5236\u540e\u4ecd\u5f15\u7528\u540c\u4e00\u5bf9\u8c61\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u628a\u6570\u7ec4\u590d\u5236\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 Java \u590d\u5236\u6570\u7ec4<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u65b9\u6cd5\u53ef\u4ee5\u590d\u5236\u6570\u7ec4\uff1a<\/p>\n

1. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n

int[] originalArray = {1, 2, 3, 4, 5};\nint[] copyArray = Arrays.copyOf(originalArray, originalArray.length);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u526f\u672c\u3002\u65b0\u6570\u7ec4\u7684\u957f\u5ea6\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u957f\u5ea6\u76f8\u540c\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
2. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong><\/p>\n
int[] originalArray = {1, 2, 3, 4, 5};\nint[] copyArray = new int[originalArray.length];\nSystem.arraycopy(originalArray, 0, copyArray, 0, originalArray.length);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6b64\u65b9\u6cd5\u5c06\u539f\u59cb\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u9884\u5148\u5206\u914d\u7684\u65b0\u6570\u7ec4\u4e2d\u3002\u8d77\u59cb\u7d22\u5f15\u548c\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf\u7531 System.arraycopy() \u65b9\u6cd5\u7684\u53c2\u6570\u6307\u5b9a\u3002<\/p>\n
<\/strong><\/p>\n
    \n
  • Arrays.copyOf() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u800c System.arraycopy() \u65b9\u6cd5\u76f4\u63a5\u4fee\u6539\u76ee\u6807\u6570\u7ec4\u3002<\/li>\n
  • Arrays.copyOf() \u65b9\u6cd5\u66f4\u7b80\u5355\u4e14\u9ad8\u6548\uff0c\u800c System.arraycopy() \u65b9\u6cd5\u66f4\u7075\u6d3b\uff0c\u5141\u8bb8\u60a8\u6307\u5b9a\u8d77\u59cb\u7d22\u5f15\u548c\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf\u3002<\/li>\n<\/ul>\n
    \u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
      \n
    • \u590d\u5236\u6570\u7ec4\u65f6\uff0c\u539f\u59cb\u6570\u7ec4\u4e2d\u7684\u4efb\u4f55\u66f4\u6539\u90fd\u4e0d\u4f1a\u53cd\u6620\u5728\u590d\u5236\u7684\u6570\u7ec4\u4e2d\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/li>\n
    • \u786e\u4fdd\u76ee\u6807\u6570\u7ec4\u6709\u8db3\u591f\u7684\u7a7a\u95f4\u6765\u5bb9\u7eb3\u590d\u5236\u7684\u5143\u7d20\u3002\u5426\u5219\uff0c\u4f1a\u629b\u51fa IndexOutOfBoundsException\u3002<\/li>\n
    • \u5982\u679c\u539f\u59cb\u6570\u7ec4\u5305\u542b\u5bf9\u8c61\uff0c\u5219\u590d\u5236\u7684\u6570\u7ec4\u5c06\u5305\u542b\u5bf9\u539f\u59cb\u5bf9\u8c61\u5f15\u7528\u7684\u526f\u672c\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u7ec4\u590d\u5236\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      java \u4e2d\u590d\u5236\u6570\u7ec4\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a1. \u4f7f\u7528 arrays.copyof() \u521b\u5efa\u65b0\u526f\u672c\u6570\u7ec4\uff1b2. \u4f7f\u7528 system.arraycopy() \u5728\u5df2\u5206\u914d\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u3002arrays.copyof() \u66f4\u7b80\u5355\u9ad8\u6548\uff0csystem.arraycopy() \u66f4\u7075\u6d3b\uff0c\u53ef\u6307\u5b9a\u8d77\u59cb\u7d22\u5f15\u548c\u590d\u5236\u957f\u5ea6\u3002\u590d\u5236\u540e\uff0c\u6570\u7ec4\u4e4b\u95f4\u4e92\u4e0d\u5f71\u54cd\uff0c\u4e14\u5982\u679c\u6570\u7ec4\u5305\u542b\u5bf9\u8c61\uff0c\u590d\u5236\u540e\u4ecd\u5f15\u7528\u540c\u4e00\u5bf9\u8c61\u3002 \u5982\u4f55\u4f7f\u7528 Java \u590d\u5236\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u6709\u4e24\u79cd\u4e3b\u8981\u7684\u65b9\u6cd5\u53ef\u4ee5\u590d\u5236\u6570\u7ec4\uff1a 1. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5 int[] originalArray = {1, 2, 3, 4, 5}; int[] copyArray = Arrays.copyOf(originalArray, originalArray.length); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\u7684\u526f\u672c\u3002\u65b0\u6570\u7ec4\u7684\u957f\u5ea6\u4e0e\u539f\u59cb\u6570\u7ec4\u7684\u957f\u5ea6\u76f8\u540c\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b 2. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5 int[] originalArray = {1, 2, 3, 4, 5}; int[] copyArray = new int[originalArray.length]; System.arraycopy(originalArray, 0, […]<\/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-65363","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65363","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=65363"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65363\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}