{"id":66250,"date":"2025-05-03T09:36:12","date_gmt":"2025-05-03T01:36:12","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66250\/"},"modified":"2025-05-03T09:36:12","modified_gmt":"2025-05-03T01:36:12","slug":"java%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66250\/","title":{"rendered":"java\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570"},"content":{"rendered":"

\n \u5728 java \u4e2d\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 system.arraycopy() \u590d\u5236\u6570\u7ec4\uff0c\u6392\u9664\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u7684 remove() \u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u52a8\u6001\u6570\u7ec4\u3002\u4f7f\u7528 arrayutils.removeelement() (apache commons lang)\uff0c\u4e13\u95e8\u7528\u4e8e\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n

1. \u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n

System.arraycopy() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u901a\u8fc7\u5c06\u6570\u7ec4\u4e2d\u8981\u5220\u9664\u7684\u5143\u7d20\u540e\u9762\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5220\u9664\u5b83\u4eec\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

int[] numbers = {1, 2, 3, 4, 5};\nint[] newNumbers = new int[numbers.length - 1];\n\nSystem.arraycopy(numbers, 0, newNumbers, 0, 2);\nSystem.arraycopy(numbers, 3, newNumbers, 2, newNumbers.length - 2);\n\n\/\/ \u8f93\u51fa newNumbers\uff1a{1, 2, 4, 5}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528 ArrayList<\/strong><\/p>\n
ArrayList \u662f\u4e00\u4e2a\u52a8\u6001\u6570\u7ec4\uff0c\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u6dfb\u52a0\u548c\u5220\u9664\u5143\u7d20\u3002\u8981\u4ece ArrayList \u4e2d\u5220\u9664\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 remove() \u65b9\u6cd5\u3002<\/p>\n
List<Integer> numbers = new ArrayList<>();\nnumbers.add(1);\nnumbers.add(2);\nnumbers.add(3);\nnumbers.add(4);\nnumbers.add(5);\n\nnumbers.remove(2); \/\/ \u5220\u9664\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\n\n\/\/ \u8f93\u51fa numbers\uff1a{1, 2, 4, 5}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u4f7f\u7528 ArrayUtils.removeElement() (Apache Commons Lang)<\/strong><\/p>\n
Apache Commons Lang \u63d0\u4f9b\u4e86\u4e00\u4e2a\u540d\u4e3a ArrayUtils.removeElement() \u7684\u5b9e\u7528\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u7279\u5b9a\u5143\u7d20\u3002<\/p>\n
int[] numbers = {1, 2, 3, 4, 5};\n\nnumbers = ArrayUtils.removeElement(numbers, 3);\n\n\/\/ \u8f93\u51fa numbers\uff1a{1, 2, 4, 5}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • \u4e0a\u8ff0\u65b9\u6cd5\u90fd\u9002\u7528\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\u548c\u5bf9\u8c61\u6570\u7ec4\u3002<\/li>\n
  • \u539f\u59cb\u6570\u7ec4\u7684\u957f\u5ea6\u4e0d\u4f1a\u66f4\u6539\uff0c\u53ea\u6709\u5185\u5bb9\u4f1a\u88ab\u4fee\u6539\u3002<\/li>\n
  • \u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u65f6\uff0c\u6570\u7ec4\u4e2d\u5269\u4f59\u5143\u7d20\u7684\u7d22\u5f15\u53ef\u80fd\u4f1a\u53d1\u751f\u53d8\u5316\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5728 java \u4e2d\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\u6709\uff1a\u4f7f\u7528 system.arraycopy() \u590d\u5236\u6570\u7ec4\uff0c\u6392\u9664\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u7684 remove() \u65b9\u6cd5\uff0c\u9002\u7528\u4e8e\u52a8\u6001\u6570\u7ec4\u3002\u4f7f\u7528 arrayutils.removeelement() (apache commons lang)\uff0c\u4e13\u95e8\u7528\u4e8e\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u3002 \u5982\u4f55\u5728 Java \u4e2d\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 System.arraycopy() System.arraycopy() \u65b9\u6cd5\u53ef\u4ee5\u5c06\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u901a\u8fc7\u5c06\u6570\u7ec4\u4e2d\u8981\u5220\u9664\u7684\u5143\u7d20\u540e\u9762\u7684\u5143\u7d20\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5220\u9664\u5b83\u4eec\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; int[] newNumbers = new int[numbers.length – 1]; System.arraycopy(numbers, 0, newNumbers, 0, 2); System.arraycopy(numbers, 3, newNumbers, 2, newNumbers.length – 2); \/\/ \u8f93\u51fa newNumbers\uff1a{1, […]<\/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-66250","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66250","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=66250"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66250\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}