{"id":37467,"date":"2024-11-26T12:13:38","date_gmt":"2024-11-26T04:13:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37467\/"},"modified":"2024-11-26T12:13:38","modified_gmt":"2024-11-26T04:13:38","slug":"java%e8%be%93%e5%85%a5%e6%95%b0%e7%bb%84%e5%a4%a7%e5%b0%8f%e6%80%8e%e4%b9%88%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37467\/","title":{"rendered":"java\u8f93\u5165\u6570\u7ec4\u5927\u5c0f\u600e\u4e48\u8bbe\u7f6e"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u6570\u7ec4\u5927\u5c0f\u4e00\u65e6\u521b\u5efa\u5373\u56fa\u5b9a\u4e0d\u53d8\u3002\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f\u7684\u65b9\u6cd5\u6709\uff1a\u76f4\u63a5\u6307\u5b9a\u5927\u5c0f\uff1a\u521b\u5efa\u6570\u7ec4\u65f6\u6307\u5b9a\u5176\u5927\u5c0f\uff08\u5982\uff1aint[] numbers = new int[5]\uff09\u3002\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff1a\u57fa\u4e8e\u73b0\u6709\u6570\u7ec4\u521b\u5efa\u4e0d\u540c\u5927\u5c0f\u7684\u65b0\u6570\u7ec4\uff08\u5982\uff1aint[] newarray = arrays.copyof(originalarray, 3)\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111306033774811.jpg\" class=\"aligncenter\" title=\"java\u8f93\u5165\u6570\u7ec4\u5927\u5c0f\u600e\u4e48\u8bbe\u7f6e\u63d2\u56fe\" alt=\"java\u8f93\u5165\u6570\u7ec4\u5927\u5c0f\u600e\u4e48\u8bbe\u7f6e\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f<\/strong><\/p>\n<p>Java \u4e2d\u6570\u7ec4\u7684\u5927\u5c0f\u662f\u56fa\u5b9a\u7684\uff0c\u5728\u521b\u5efa\u6570\u7ec4\u65f6\u5c31\u9700\u8981\u6307\u5b9a its \u5927\u5c0f\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\u8bbe\u7f6e\u6570\u7ec4\u7684\u5927\u5c0f\uff1a<\/p>\n<p><strong>1. \u76f4\u63a5\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f<\/strong><\/p>\n<p>\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5728\u521b\u5efa\u6570\u7ec4\u65f6\u6307\u5b9a\u5176\u5927\u5c0f\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684 int \u578b\u6570\u7ec4\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5<\/strong><\/p>\n<p>\u5982\u679c\u5df2\u7ecf\u6709\u4e00\u4e2a\u6570\u7ec4\uff0c\u5e76\u4e14\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u4e0d\u540c\u5927\u5c0f\u7684\u65b0\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] originalArray = {1, 2, 3, 4, 5};\nint[] newArray = Arrays.copyOf(originalArray, 3);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 3 \u7684\u65b0\u6570\u7ec4 newArray\uff0c\u5176\u4e2d\u5305\u542b\u6765\u81ea originalArray \u7684\u524d\u4e09\u4e2a\u5143\u7d20\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>Java \u4e2d\u7684\u6570\u7ec4\u662f\u5bf9\u8c61\uff0c\u56e0\u6b64\u5b83\u4eec\u5728\u5806\u4e2d\u5206\u914d\u3002<\/li>\n<li>\u6570\u7ec4\u7684\u5927\u5c0f\u4e0d\u53ef\u66f4\u6539\uff0c\u4e00\u65e6\u521b\u5efa\u6570\u7ec4\uff0c\u5176\u5927\u5c0f\u5c31\u56fa\u5b9a\u4e86\u3002<\/li>\n<li>\u5982\u679c\u5c1d\u8bd5\u8bbf\u95ee\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u5143\u7d20\uff0c\u5c06\u5f15\u53d1 ArrayIndexOutOfBoundsException\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u8f93\u5165\u6570\u7ec4\u5927\u5c0f\u600e\u4e48\u8bbe\u7f6e\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>java \u4e2d\u6570\u7ec4\u5927\u5c0f\u4e00\u65e6\u521b\u5efa\u5373\u56fa\u5b9a\u4e0d\u53d8\u3002\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f\u7684\u65b9\u6cd5\u6709\uff1a\u76f4\u63a5\u6307\u5b9a\u5927\u5c0f\uff1a\u521b\u5efa\u6570\u7ec4\u65f6\u6307\u5b9a\u5176\u5927\u5c0f\uff08\u5982\uff1aint[] numbers = new int[5]\uff09\u3002\u4f7f\u7528 arrays.copyof() \u65b9\u6cd5\uff1a\u57fa\u4e8e\u73b0\u6709\u6570\u7ec4\u521b\u5efa\u4e0d\u540c\u5927\u5c0f\u7684\u65b0\u6570\u7ec4\uff08\u5982\uff1aint[] newarray = arrays.copyof(originalarray, 3)\uff09\u3002 Java \u4e2d\u8bbe\u7f6e\u6570\u7ec4\u5927\u5c0f Java \u4e2d\u6570\u7ec4\u7684\u5927\u5c0f\u662f\u56fa\u5b9a\u7684\uff0c\u5728\u521b\u5efa\u6570\u7ec4\u65f6\u5c31\u9700\u8981\u6307\u5b9a its \u5927\u5c0f\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\u8bbe\u7f6e\u6570\u7ec4\u7684\u5927\u5c0f\uff1a 1. \u76f4\u63a5\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f \u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5728\u521b\u5efa\u6570\u7ec4\u65f6\u6307\u5b9a\u5176\u5927\u5c0f\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a 5 \u7684 int \u578b\u6570\u7ec4\u3002 2. \u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5 \u5982\u679c\u5df2\u7ecf\u6709\u4e00\u4e2a\u6570\u7ec4\uff0c\u5e76\u4e14\u60f3\u8981\u521b\u5efa\u4e00\u4e2a\u5177\u6709\u4e0d\u540c\u5927\u5c0f\u7684\u65b0\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u3002\u4f8b\u5982\uff1a int[] originalArray = {1, 2, 3, 4, 5}; int[] newArray = Arrays.copyOf(originalArray, 3); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u5927\u5c0f\u4e3a [&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-37467","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37467","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=37467"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37467\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37467"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37467"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}