{"id":66177,"date":"2025-05-03T15:51:03","date_gmt":"2025-05-03T07:51:03","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66177\/"},"modified":"2025-05-03T15:51:03","modified_gmt":"2025-05-03T07:51:03","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b0%e7%bb%84%e6%8c%87%e5%ae%9a%e7%9a%84%e6%95%b0%e5%88%a0%e9%99%a4-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66177\/","title":{"rendered":"java\u600e\u4e48\u628a\u6570\u7ec4\u6307\u5b9a\u7684\u6570\u5220\u9664"},"content":{"rendered":"<blockquote><p>\n  \u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4ece java \u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u5220\u9664\u5143\u7d20\uff0c\u518d\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u4f7f\u7528 apache commons lang api \u7684 arrayutils.removeelement() \u65b9\u6cd5\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111503064381120.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6570\u7ec4\u6307\u5b9a\u7684\u6570\u5220\u9664\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6570\u7ec4\u6307\u5b9a\u7684\u6570\u5220\u9664\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong><\/p>\n<pre>public static void main(String[] args) {\n    int[] arr = {1, 2, 3, 4, 5};\n    int indexToRemove = 2;\n\n    \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5bb9\u91cf\u6bd4\u539f\u59cb\u6570\u7ec4\u5c0f 1\n    int[] newArr = new int[arr.length - 1];\n\n    \/\/ \u590d\u5236\u5143\u7d20\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\n    System.arraycopy(arr, 0, newArr, 0, indexToRemove);\n    System.arraycopy(arr, indexToRemove + 1, newArr, indexToRemove, arr.length - indexToRemove - 1);\n\n    \/\/ \u6253\u5370\u65b0\u6570\u7ec4\n    for (int num : newArr) {\n        System.out.print(num + \" \");\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 ArrayList<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>public static void main(String[] args) {\n    int[] arr = {1, 2, 3, 4, 5};\n    int indexToRemove = 2;\n\n    \/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\n    ArrayList&lt;Integer&gt; list = new ArrayList&lt;&gt;();\n    for (int num : arr) {\n        list.add(num);\n    }\n\n    \/\/ \u5220\u9664\u6307\u5b9a\u7684\u5143\u7d20\n    list.remove(indexToRemove);\n\n    \/\/ \u5c06 ArrayList \u8f6c\u6362\u4e3a\u6570\u7ec4\n    arr = new int[list.size()];\n    for (int i = 0; i &lt; arr.length; i++) {\n        arr[i] = list.get(i);\n    }\n\n    \/\/ \u6253\u5370\u65b0\u6570\u7ec4\n    for (int num : arr) {\n        System.out.print(num + \" \");\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 3\uff1a\u4f7f\u7528 Apache Commons Lang API<\/strong><\/p>\n<pre>public static void main(String[] args) {\n    int[] arr = {1, 2, 3, 4, 5};\n    int indexToRemove = 2;\n\n    \/\/ \u5bfc\u5165 Apache Commons Lang API\n    import org.apache.commons.lang3.ArrayUtils;\n\n    \/\/ \u5220\u9664\u6307\u5b9a\u7684\u5143\u7d20\n    arr = ArrayUtils.removeElement(arr, indexToRemove);\n\n    \/\/ \u6253\u5370\u65b0\u6570\u7ec4\n    for (int num : arr) {\n        System.out.print(num + \" \");\n    }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6570\u7ec4\u6307\u5b9a\u7684\u6570\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>\u6709\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4ece java \u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u5220\u9664\u5143\u7d20\uff0c\u518d\u5c06\u5176\u8f6c\u6362\u4e3a\u6570\u7ec4\u3002\u4f7f\u7528 apache commons lang api \u7684 arrayutils.removeelement() \u65b9\u6cd5\u76f4\u63a5\u5220\u9664\u5143\u7d20\u3002 \u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u6307\u5b9a\u5143\u7d20\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5 public static void main(String[] args) { int[] arr = {1, 2, 3, 4, 5}; int indexToRemove = 2; \/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5bb9\u91cf\u6bd4\u539f\u59cb\u6570\u7ec4\u5c0f 1 int[] newArr = new int[arr.length &#8211; 1]; \/\/ \u590d\u5236\u5143\u7d20\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20 [&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-66177","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66177","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=66177"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66177\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}