{"id":64155,"date":"2025-05-03T16:42:24","date_gmt":"2025-05-03T08:42:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64155\/"},"modified":"2025-05-03T16:42:24","modified_gmt":"2025-05-03T08:42:24","slug":"java%e6%80%8e%e4%b9%88%e8%8e%b7%e5%be%97%e6%96%b9%e6%b3%95%e4%b8%ad%e7%9a%84%e8%bf%94%e5%9b%9e%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64155\/","title":{"rendered":"java\u600e\u4e48\u83b7\u5f97\u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  java \u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u7c7b\u578b\u8f6c\u6362\u6216\u4f7f\u7528 arrays.copyof() \u83b7\u53d6\u8fd4\u56de\u6570\u7ec4\uff1a\u4f7f\u7528\u7c7b\u578b\u8f6c\u6362\uff1aint[] myarray = methodreturningarray();\u4f7f\u7528 arrays.copyof()\uff1aint[] myarray = arrays.copyof(methodreturningarray(), 10);\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/02\/2024110215483285604.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u83b7\u5f97\u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u83b7\u5f97\u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6 Java \u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4<\/strong><\/p>\n<p>Java \u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u6570\u7ec4\uff0c\u8fd9\u662f\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u5c06\u591a\u4e2a\u503c\u4f5c\u4e3a\u5355\u4e2a\u5355\u5143\u8fd4\u56de\u3002\u83b7\u53d6\u65b9\u6cd5\u8fd4\u56de\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528\u7c7b\u578b\u8f6c\u6362<\/strong><\/p>\n<p>\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u5c06\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u663e\u5f0f\u8f6c\u6362\u4e3a\u6570\u7ec4\u7c7b\u578b\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = methodReturningArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u4ee3\u7801\u5c06\u628a methodReturningArray() \u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u7ec4\u5206\u914d\u7ed9\u53d8\u91cf myArray\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.copyOf()<\/strong><\/p>\n<p>\u53e6\u4e00\u4e2a\u65b9\u6cd5\u662f\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u548c\u4e00\u4e2a\u6574\u6570\u53c2\u6570\uff0c\u8fd4\u56de\u8be5\u6570\u7ec4\u7684\u526f\u672c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] myArray = Arrays.copyOf(methodReturningArray(), 10);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u4ee3\u7801\u5c06\u628a methodReturningArray() \u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u7ec4\u590d\u5236\u5230 myArray \u4e2d\uff0c\u5e76\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u4e3a 10\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a ArrayUtils \u7684\u5b9e\u7528\u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u540d\u4e3a getArray() \u7684\u65b9\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u8be5\u6570\u7ec4\uff1a<\/p>\n<pre>ArrayUtils utils = new ArrayUtils();\nint[] myArray = utils.getArray();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u8bbf\u95ee myArray \u4e2d\u7684\u5143\u7d20\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u83b7\u5f97\u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4\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>java \u65b9\u6cd5\u53ef\u4ee5\u901a\u8fc7\u7c7b\u578b\u8f6c\u6362\u6216\u4f7f\u7528 arrays.copyof() \u83b7\u53d6\u8fd4\u56de\u6570\u7ec4\uff1a\u4f7f\u7528\u7c7b\u578b\u8f6c\u6362\uff1aint[] myarray = methodreturningarray();\u4f7f\u7528 arrays.copyof()\uff1aint[] myarray = arrays.copyof(methodreturningarray(), 10); \u5982\u4f55\u83b7\u53d6 Java \u65b9\u6cd5\u4e2d\u7684\u8fd4\u56de\u6570\u7ec4 Java \u65b9\u6cd5\u53ef\u4ee5\u8fd4\u56de\u6570\u7ec4\uff0c\u8fd9\u662f\u4e00\u79cd\u65b9\u4fbf\u7684\u65b9\u5f0f\u6765\u5c06\u591a\u4e2a\u503c\u4f5c\u4e3a\u5355\u4e2a\u5355\u5143\u8fd4\u56de\u3002\u83b7\u53d6\u65b9\u6cd5\u8fd4\u56de\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a 1. \u4f7f\u7528\u7c7b\u578b\u8f6c\u6362 \u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u662f\u5c06\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u663e\u5f0f\u8f6c\u6362\u4e3a\u6570\u7ec4\u7c7b\u578b\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = methodReturningArray(); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u4ee3\u7801\u5c06\u628a methodReturningArray() \u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u7ec4\u5206\u914d\u7ed9\u53d8\u91cf myArray\u3002 2. \u4f7f\u7528 Arrays.copyOf() \u53e6\u4e00\u4e2a\u65b9\u6cd5\u662f\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u3002\u6b64\u65b9\u6cd5\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u548c\u4e00\u4e2a\u6574\u6570\u53c2\u6570\uff0c\u8fd4\u56de\u8be5\u6570\u7ec4\u7684\u526f\u672c\u3002\u4f8b\u5982\uff1a int[] myArray = Arrays.copyOf(methodReturningArray(), 10); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u4ee3\u7801\u5c06\u628a methodReturningArray() \u65b9\u6cd5\u8fd4\u56de\u7684\u6570\u7ec4\u590d\u5236\u5230 myArray \u4e2d\uff0c\u5e76\u6307\u5b9a\u6570\u7ec4\u5927\u5c0f\u4e3a 10\u3002 \u793a\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a ArrayUtils \u7684\u5b9e\u7528\u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e2a\u540d\u4e3a getArray() \u7684\u65b9\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2a\u6574\u6570\u6570\u7ec4\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u8be5\u6570\u7ec4\uff1a ArrayUtils [&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-64155","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64155","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=64155"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64155\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}