{"id":40174,"date":"2024-11-26T12:50:45","date_gmt":"2024-11-26T04:50:45","guid":{"rendered":"https:\/\/fwq.ai\/blog\/40174\/"},"modified":"2024-11-26T12:50:45","modified_gmt":"2024-11-26T04:50:45","slug":"java%e6%80%8e%e4%b9%88%e5%88%9d%e5%a7%8b%e5%8c%96%e4%b8%80%e4%b8%aa%e7%a9%ba%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/40174\/","title":{"rendered":"JAVA\u600e\u4e48\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5728 java \u4e2d\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u6216 arrays.empty() \u65b9\u6cd5\u3002new \u8fd0\u7b97\u7b26\u521b\u5efa\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\uff0c\u800c arrays.empty() \u65b9\u6cd5\u8fd4\u56de\u6307\u5b9a\u7c7b\u578b\u7684\u7a7a\u6570\u7ec4\u3002\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u4fee\u6539\u7684\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111722001812411.jpg\" class=\"aligncenter\" title=\"JAVA\u600e\u4e48\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u6570\u7ec4\u63d2\u56fe\" alt=\"JAVA\u600e\u4e48\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u521d\u59cb\u5316 Java \u4e2d\u7684\u7a7a\u6570\u7ec4<\/strong><\/p>\n<p>\u7a7a\u6570\u7ec4\u662f\u5728 Java \u4e2d\u8868\u793a\u4e0d\u5305\u542b\u4efb\u4f55\u5143\u7d20\u7684\u6570\u7ec4\u3002\u5b83\u4eec\u4e0e\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\u4e0d\u540c\uff0c\u540e\u8005\u662f\u5305\u542b\u96f6\u4e2a\u5143\u7d20\u7684\u6709\u6548\u6570\u7ec4\u3002<\/p>\n<p>\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u4ee5\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 new \u8fd0\u7b97\u7b26<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] emptyArray = new int[0];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 0 \u7684\u7a7a\u6570\u7ec4\uff0c\u5176\u4e2d\u672a\u5305\u542b\u4efb\u4f55\u5143\u7d20\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.empty() \u65b9\u6cd5<\/strong><\/p>\n<pre>int[] emptyArray = Arrays.empty();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>Arrays.empty() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5177\u6709\u6307\u5b9a\u7c7b\u578b\u7684\u7a7a\u6570\u7ec4\uff0c\u4f8b\u5982 int[]\u3001String[] \u7b49\u3002\u6b64\u65b9\u6cd5\u7531 Java \u63d0\u4f9b\uff0c\u5e76\u4e14\u662f\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\u7684\u66f4\u7b80\u6d01\u4e14\u9996\u9009\u7684\u65b9\u5f0f\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u4fee\u6539\u7684\u7a7a\u6570\u7ec4\u3002\u8fd9\u610f\u5473\u7740\u6570\u7ec4\u7684\u5927\u5c0f\u65e0\u6cd5\u66f4\u6539\uff0c\u5e76\u4e14\u65e0\u6cd5\u5411\u5176\u4e2d\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJAVA\u600e\u4e48\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u6570\u7ec4\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>\u8981\u5728 java \u4e2d\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u6216 arrays.empty() \u65b9\u6cd5\u3002new \u8fd0\u7b97\u7b26\u521b\u5efa\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\uff0c\u800c arrays.empty() \u65b9\u6cd5\u8fd4\u56de\u6307\u5b9a\u7c7b\u578b\u7684\u7a7a\u6570\u7ec4\u3002\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u4fee\u6539\u7684\u6570\u7ec4\u3002 \u5982\u4f55\u521d\u59cb\u5316 Java \u4e2d\u7684\u7a7a\u6570\u7ec4 \u7a7a\u6570\u7ec4\u662f\u5728 Java \u4e2d\u8868\u793a\u4e0d\u5305\u542b\u4efb\u4f55\u5143\u7d20\u7684\u6570\u7ec4\u3002\u5b83\u4eec\u4e0e\u957f\u5ea6\u4e3a 0 \u7684\u6570\u7ec4\u4e0d\u540c\uff0c\u540e\u8005\u662f\u5305\u542b\u96f6\u4e2a\u5143\u7d20\u7684\u6709\u6548\u6570\u7ec4\u3002 \u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\u53ef\u4ee5\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\uff1a 1. \u4f7f\u7528 new \u8fd0\u7b97\u7b26 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] emptyArray = new int[0]; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u5c06\u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 0 \u7684\u7a7a\u6570\u7ec4\uff0c\u5176\u4e2d\u672a\u5305\u542b\u4efb\u4f55\u5143\u7d20\u3002 2. \u4f7f\u7528 Arrays.empty() \u65b9\u6cd5 int[] emptyArray = Arrays.empty(); \u767b\u5f55\u540e\u590d\u5236 Arrays.empty() \u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u5177\u6709\u6307\u5b9a\u7c7b\u578b\u7684\u7a7a\u6570\u7ec4\uff0c\u4f8b\u5982 int[]\u3001String[] \u7b49\u3002\u6b64\u65b9\u6cd5\u7531 Java \u63d0\u4f9b\uff0c\u5e76\u4e14\u662f\u521d\u59cb\u5316\u7a7a\u6570\u7ec4\u7684\u66f4\u7b80\u6d01\u4e14\u9996\u9009\u7684\u65b9\u5f0f\u3002 \u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e0d\u53ef\u4fee\u6539\u7684\u7a7a\u6570\u7ec4\u3002\u8fd9\u610f\u5473\u7740\u6570\u7ec4\u7684\u5927\u5c0f\u65e0\u6cd5\u66f4\u6539\uff0c\u5e76\u4e14\u65e0\u6cd5\u5411\u5176\u4e2d\u6dfb\u52a0\u6216\u5220\u9664\u5143\u7d20\u3002 \u4ee5\u4e0a\u5c31\u662fJAVA\u600e\u4e48\u521d\u59cb\u5316\u4e00\u4e2a\u7a7a\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-40174","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40174","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=40174"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/40174\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=40174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=40174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=40174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}