{"id":35030,"date":"2024-11-26T14:02:44","date_gmt":"2024-11-26T06:02:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/35030\/"},"modified":"2024-11-26T14:02:44","modified_gmt":"2024-11-26T06:02:44","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e6%95%b0%e7%bb%84%e9%87%8c%e7%9a%84%e5%85%83%e7%b4%a0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/35030\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u91cc\u7684\u5143\u7d20"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 system.arraycopy() \u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u590d\u5236\u5143\u7d20\u4ee5\u5220\u9664\u6307\u5b9a\u5143\u7d20\u3002\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u5220\u9664\u6307\u5b9a\u8303\u56f4\u5916\u7684\u5143\u7d20\u3002\u4f7f\u7528 arrays.copyofrange() \u521b\u5efa\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u5220\u9664\u6307\u5b9a\u8303\u56f4\u5916\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u6dfb\u52a0\u5143\u7d20\uff0c\u7136\u540e\u4f7f\u7528 remove() \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110308395480083.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u91cc\u7684\u5143\u7d20\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u91cc\u7684\u5143\u7d20\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u6570\u7ec4\u662f Java \u4e2d\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6570\u636e\u7ed3\u6784\u3002\u6709\u65f6\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5728 Java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u4e00\u3001\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u901a\u8fc7\u4ece\u6e90\u6570\u7ec4\u590d\u5236\u5143\u7d20\u6765\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u6709\u6548\u5730\u5220\u9664\u5143\u7d20\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint[] newArr = new int[arr.length - 1];\n\nSystem.arraycopy(arr, 0, newArr, 0, index);\nSystem.arraycopy(arr, index + 1, newArr, index, arr.length - index - 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4e8c\u3001\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u6e90\u6570\u7ec4\u6307\u5b9a\u8303\u56f4\u5185\u7684\u5143\u7d20\u3002\u4f7f\u7528\u6b64\u65b9\u6cd5\u53ef\u4ee5\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint[] newArr = Arrays.copyOf(arr, index);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4e09\u3001\u4f7f\u7528 Arrays.copyOfRange() \u65b9\u6cd5<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u7c7b\u4f3c\u4e8e Arrays.copyOf()\uff0c\u4f46\u5141\u8bb8\u60a8\u6307\u5b9a\u8303\u56f4\u3002\u4f7f\u7528\u6b64\u65b9\u6cd5\u53ef\u4ee5\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\uff1a<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint[] newArr = Arrays.copyOfRange(arr, 0, index);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u56db\u3001\u4f7f\u7528 ArrayList<\/strong><\/p>\n<p>ArrayList \u662f Java \u4e2d\u7684\u52a8\u6001\u6570\u7ec4\uff0c\u5b83\u5141\u8bb8\u60a8\u6dfb\u52a0\u3001\u5220\u9664\u548c\u68c0\u7d22\u5143\u7d20\u3002\u60a8\u53ef\u4ee5\u901a\u8fc7\u5c06\u5143\u7d20\u6dfb\u52a0\u5230 ArrayList \u4e2d\uff0c\u7136\u540e\u4f7f\u7528 remove() \u65b9\u6cd5\u5c06\u5176\u5220\u9664\u6765\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\uff1a<\/p>\n<pre>ArrayList&lt;Integer&gt; arr = new ArrayList&lt;&gt;();\narr.add(1);\narr.add(2);\narr.add(3);\narr.add(4);\narr.remove(index);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u4e9b\u65b9\u6cd5\u8ba9\u60a8\u53ef\u4ee5\u5728 Java \u4e2d\u8f7b\u677e\u5730\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u60a8\u7684\u5177\u4f53\u9700\u6c42\u548c\u6027\u80fd\u8003\u8651\u56e0\u7d20\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u5220\u9664\u6570\u7ec4\u91cc\u7684\u5143\u7d20\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 system.arraycopy() \u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u590d\u5236\u5143\u7d20\u4ee5\u5220\u9664\u6307\u5b9a\u5143\u7d20\u3002\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u5220\u9664\u6307\u5b9a\u8303\u56f4\u5916\u7684\u5143\u7d20\u3002\u4f7f\u7528 arrays.copyofrange() \u521b\u5efa\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u5220\u9664\u6307\u5b9a\u8303\u56f4\u5916\u7684\u5143\u7d20\u3002\u4f7f\u7528 arraylist \u6dfb\u52a0\u5143\u7d20\uff0c\u7136\u540e\u4f7f\u7528 remove() \u65b9\u6cd5\u5220\u9664\u6307\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20 \u6570\u7ec4\u662f Java \u4e2d\u5b58\u50a8\u76f8\u540c\u7c7b\u578b\u5143\u7d20\u7684\u6570\u636e\u7ed3\u6784\u3002\u6709\u65f6\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u4ece\u6570\u7ec4\u4e2d\u5220\u9664\u5143\u7d20\u3002\u4ee5\u4e0b\u662f\u51e0\u79cd\u5728 Java \u4e2d\u5220\u9664\u6570\u7ec4\u5143\u7d20\u7684\u65b9\u6cd5\uff1a \u4e00\u3001\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5 \u6b64\u65b9\u6cd5\u901a\u8fc7\u4ece\u6e90\u6570\u7ec4\u590d\u5236\u5143\u7d20\u6765\u521b\u5efa\u65b0\u6570\u7ec4\uff0c\u4ece\u800c\u6709\u6548\u5730\u5220\u9664\u5143\u7d20\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; int[] newArr = new int[arr.length &#8211; 1]; System.arraycopy(arr, 0, newArr, 0, index); System.arraycopy(arr, index + 1, newArr, index, arr.length &#8211; index [&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-35030","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35030","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=35030"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/35030\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=35030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=35030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=35030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}