{"id":65709,"date":"2025-05-03T08:52:59","date_gmt":"2025-05-03T00:52:59","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65709\/"},"modified":"2025-05-03T08:52:59","modified_gmt":"2025-05-03T00:52:59","slug":"java%e6%95%b0%e7%bb%84%e4%b8%ad%e6%95%b0%e6%8d%ae%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65709\/","title":{"rendered":"java\u6570\u7ec4\u4e2d\u6570\u636e\u600e\u4e48\u5220\u9664"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u9010\u4e2a\u5143\u7d20\u5220\u9664\u4f7f\u7528 arraylist\u4f7f\u7528 system.arraycopy()\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111307514211928.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u4e2d\u6570\u636e\u600e\u4e48\u5220\u9664\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u4e2d\u6570\u636e\u600e\u4e48\u5220\u9664\u63d2\u56fe\" \/><\/p>\n<p><strong>Java\u6570\u7ec4\u4e2d\u6570\u636e\u5220\u9664\u65b9\u6cd5<\/strong><\/p>\n<p>Java\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u5b58\u50a8\u56fa\u5b9a\u6570\u91cf\u7684\u540c\u7c7b\u578b\u5143\u7d20\u3002\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u67d0\u4e9b\u5143\u7d20\uff0c\u4ee5\u4e0b\u4ecb\u7ecd\u4e86\u5728Java\u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u51e0\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u9010\u4e2a\u5143\u7d20\u5220\u9664<\/strong><\/p>\n<p>\u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u5728\u9047\u5230\u8981\u5220\u9664\u7684\u5143\u7d20\u65f6\u5c06\u5176\u8d4b\u503c\u4e3a\u6570\u7ec4\u4e2d\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u5c06\u6570\u7ec4\u957f\u5ea6\u51cf\u4e00\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint elementToRemove = 3;\nfor (int i = 0; i &lt; arr.length; i++) {\n    if (arr[i] == elementToRemove) {\n        arr[i] = arr[arr.length - 1];\n        arr = Arrays.copyOf(arr, arr.length - 1);\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528ArrayList<\/strong><\/p>\n<p>\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3aArrayList\uff0c\u5b83\u662f\u4e00\u4e2a\u52a8\u6001\u6570\u7ec4\uff0c\u652f\u6301\u5143\u7d20\u5220\u9664\u3002\u5220\u9664\u5143\u7d20\u540e\uff0c\u518d\u5c06ArrayList\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint elementToRemove = 3;\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr));  \/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3aArrayList\nlist.remove(elementToRemove);\narr = list.stream().mapToInt(Integer::intValue).toArray(); \/\/ \u5c06ArrayList\u8f6c\u6362\u4e3a\u6570\u7ec4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528System.arraycopy()<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u5141\u8bb8\u590d\u5236\u6570\u7ec4\u7684\u4e00\u90e8\u5206\uff0c\u4ece\u800c\u5b9e\u73b0\u5143\u7d20\u5220\u9664\u3002\u5b83\u4ece\u7ed9\u5b9a\u7d22\u5f15\u5f00\u59cb\uff0c\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\uff0c\u6307\u5b9a\u9700\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint elementToRemove = 3;\nint[] newArr = new int[arr.length - 1];\nSystem.arraycopy(arr, 0, newArr, 0, elementToRemove);\nSystem.arraycopy(arr, elementToRemove + 1, newArr, elementToRemove, newArr.length - elementToRemove);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u4e2d\u6570\u636e\u600e\u4e48\u5220\u9664\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 \u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u9010\u4e2a\u5143\u7d20\u5220\u9664\u4f7f\u7528 arraylist\u4f7f\u7528 system.arraycopy() Java\u6570\u7ec4\u4e2d\u6570\u636e\u5220\u9664\u65b9\u6cd5 Java\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u5b58\u50a8\u56fa\u5b9a\u6570\u91cf\u7684\u540c\u7c7b\u578b\u5143\u7d20\u3002\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u67d0\u4e9b\u5143\u7d20\uff0c\u4ee5\u4e0b\u4ecb\u7ecd\u4e86\u5728Java\u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u51e0\u79cd\u65b9\u6cd5\uff1a 1. \u9010\u4e2a\u5143\u7d20\u5220\u9664 \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff0c\u5e76\u5728\u9047\u5230\u8981\u5220\u9664\u7684\u5143\u7d20\u65f6\u5c06\u5176\u8d4b\u503c\u4e3a\u6570\u7ec4\u4e2d\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff0c\u7136\u540e\u5c06\u6570\u7ec4\u957f\u5ea6\u51cf\u4e00\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; int elementToRemove = 3; for (int i = 0; i &lt; arr.length; i++) { if (arr[i] == elementToRemove) { arr[i] = arr[arr.length &#8211; 1]; arr = Arrays.copyOf(arr, arr.length &#8211; 1); } } \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528ArrayList \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3aArrayList\uff0c\u5b83\u662f\u4e00\u4e2a\u52a8\u6001\u6570\u7ec4\uff0c\u652f\u6301\u5143\u7d20\u5220\u9664\u3002\u5220\u9664\u5143\u7d20\u540e\uff0c\u518d\u5c06ArrayList\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a [&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-65709","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65709","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=65709"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65709\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65709"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65709"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65709"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}