{"id":66655,"date":"2025-05-03T17:47:55","date_gmt":"2025-05-03T09:47:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66655\/"},"modified":"2025-05-03T17:47:55","modified_gmt":"2025-05-03T09:47:55","slug":"java%e6%80%8e%e4%b9%88%e5%8e%bb%e6%8e%89%e6%95%b0%e7%bb%84%e9%87%8c%e9%9d%a2%e7%9a%84%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66655\/","title":{"rendered":"java\u600e\u4e48\u53bb\u6389\u6570\u7ec4\u91cc\u9762\u7684\u6570"},"content":{"rendered":"<blockquote><p>\n  \u53ef\u4ee5\u901a\u8fc7\u4e09\u79cd\u65b9\u6cd5\u4ece java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20\uff1a1. \u4f7f\u7528 arrays.copyofrange() \u521b\u5efa\u6307\u5b9a\u8303\u56f4\u5185\u7684\u6570\u7ec4\uff0c\u6392\u9664\u76ee\u6807\u5143\u7d20\uff1b2. \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u4f7f\u7528 remove() \u65b9\u6cd5\u79fb\u9664\u76ee\u6807\u5143\u7d20\uff0c\u518d\u8f6c\u6362\u56de\u6570\u7ec4\uff1b3. \u4f7f\u7528 system.arraycopy() \u624b\u52a8\u590d\u5236\u5143\u7d20\uff0c\u8986\u76d6\u76ee\u6807\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111612032092786.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u53bb\u6389\u6570\u7ec4\u91cc\u9762\u7684\u6570\u63d2\u56fe\" alt=\"java\u600e\u4e48\u53bb\u6389\u6570\u7ec4\u91cc\u9762\u7684\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20<\/strong><\/p>\n<p><strong>\u5f00\u95e8\u89c1\u5c71\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4ece Java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20\uff1a<\/p>\n<p><strong>\u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n<p><strong>1. \u4f7f\u7528 Arrays.copyOfRange()<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>Arrays.copyOfRange() \u51fd\u6570\u4f1a\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5185\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u540c\u65f6\u6392\u9664\u76ee\u6807\u5143\u7d20\u3002<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint[] newArr = Arrays.copyOfRange(arr, 0, 3); \/\/ \u4ece\u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20 4 \u548c 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 ArrayList<\/strong><\/p>\n<p>\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\uff0c\u4f7f\u7528 remove() \u65b9\u6cd5\u79fb\u9664\u76ee\u6807\u5143\u7d20\uff0c\u7136\u540e\u5c06 ArrayList \u8f6c\u6362\u56de\u6570\u7ec4\u3002<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nList&lt;Integer&gt; list = new ArrayList&lt;&gt;(Arrays.asList(arr));\nlist.remove(new Integer(4)); \/\/ \u4ece\u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20 4\nint[] newArr = list.stream().mapToInt(i -&gt; i).toArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n<p>\u4f7f\u7528 System.arraycopy() \u51fd\u6570\u624b\u52a8\u5c06\u5143\u7d20\u4ece\u76ee\u6807\u4f4d\u7f6e\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u4ece\u800c\u8986\u76d6\u76ee\u6807\u5143\u7d20\u3002<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint[] newArr = new int[arr.length - 1];\nSystem.arraycopy(arr, 0, newArr, 0, 3);\nSystem.arraycopy(arr, 4, newArr, 3, 1); \/\/ \u4ece\u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20 4<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u4e8e\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff0c\u79fb\u9664\u5143\u7d20\u4f1a\u5bfc\u81f4\u6570\u7ec4\u5927\u5c0f\u7f29\u5c0f\u3002<\/li>\n<li>\u5bf9\u4e8e\u5bf9\u8c61\u6570\u7ec4\uff0c\u79fb\u9664\u5143\u7d20\u4e0d\u4f1a\u7f29\u5c0f\u6570\u7ec4\u5927\u5c0f\uff0c\u800c\u662f\u5c06\u76ee\u6807\u5143\u7d20\u8bbe\u7f6e\u4e3a\u7a7a\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u53bb\u6389\u6570\u7ec4\u91cc\u9762\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":"<p>\u53ef\u4ee5\u901a\u8fc7\u4e09\u79cd\u65b9\u6cd5\u4ece java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20\uff1a1. \u4f7f\u7528 arrays.copyofrange() \u521b\u5efa\u6307\u5b9a\u8303\u56f4\u5185\u7684\u6570\u7ec4\uff0c\u6392\u9664\u76ee\u6807\u5143\u7d20\uff1b2. \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a arraylist\uff0c\u4f7f\u7528 remove() \u65b9\u6cd5\u79fb\u9664\u76ee\u6807\u5143\u7d20\uff0c\u518d\u8f6c\u6362\u56de\u6570\u7ec4\uff1b3. \u4f7f\u7528 system.arraycopy() \u624b\u52a8\u590d\u5236\u5143\u7d20\uff0c\u8986\u76d6\u76ee\u6807\u5143\u7d20\u3002 \u5982\u4f55\u4ece Java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20 \u5f00\u95e8\u89c1\u5c71\uff1a\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u4ece Java \u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20\uff1a \u8be6\u7ec6\u8bf4\u660e\uff1a 1. \u4f7f\u7528 Arrays.copyOfRange() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Arrays.copyOfRange() \u51fd\u6570\u4f1a\u521b\u5efa\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5185\u5143\u7d20\u7684\u65b0\u6570\u7ec4\uff0c\u540c\u65f6\u6392\u9664\u76ee\u6807\u5143\u7d20\u3002 int[] arr = {1, 2, 3, 4, 5}; int[] newArr = Arrays.copyOfRange(arr, 0, 3); \/\/ \u4ece\u6570\u7ec4\u4e2d\u79fb\u9664\u5143\u7d20 4 \u548c 5 \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 ArrayList \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a ArrayList\uff0c\u4f7f\u7528 remove() \u65b9\u6cd5\u79fb\u9664\u76ee\u6807\u5143\u7d20\uff0c\u7136\u540e\u5c06 ArrayList \u8f6c\u6362\u56de\u6570\u7ec4\u3002 [&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-66655","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66655","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=66655"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66655\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}