{"id":66009,"date":"2025-05-03T13:30:24","date_gmt":"2025-05-03T05:30:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66009\/"},"modified":"2025-05-03T13:30:24","modified_gmt":"2025-05-03T05:30:24","slug":"java%e4%b8%ad%e7%bb%84%e4%bb%b6%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66009\/","title":{"rendered":"java\u4e2d\u7ec4\u4ef6\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u5b9a\u4e49\u7ec4\u4ef6\u6570\u7ec4\u5305\u62ec\u4e09\u4e2a\u6b65\u9aa4\uff1a1. \u5b9a\u4e49\u6570\u7ec4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u6307\u5b9a\u6570\u636e\u7c7b\u578b\u548c\u6570\u7ec4\u540d\u79f0\uff0c\u518d\u7528 new \u6307\u5b9a\u5927\u5c0f\u30022. \u521d\u59cb\u5316\u6570\u7ec4\uff1a\u7528\u5927\u62ec\u53f7 {} \u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u30023. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u7528\u65b9\u62ec\u53f7 [] \u548c\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111411033357873.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u7ec4\u4ef6\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\u63d2\u56fe\" alt=\"java\u4e2d\u7ec4\u4ef6\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u7ec4\u4ef6\u6570\u7ec4\u5b9a\u4e49<\/strong><\/p>\n<p><strong>\u5b9a\u4e49\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u5b9a\u4e49\u4e00\u4e2a\u7ec4\u4ef6\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;\u6570\u636e\u7c7b\u578b&gt;[] \u6570\u7ec4\u540d = new &lt;\u6570\u636e\u7c7b\u578b&gt;[\u5927\u5c0f];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c\u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\uff0c\u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0c\u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<pre>int[] numbers = new int[5];\nString[] names = new String[3];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u521d\u59cb\u5316\u6570\u7ec4<\/strong><\/p>\n<p>\u5b9a\u4e49\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u5927\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;\u6570\u636e\u7c7b\u578b&gt;[] \u6570\u7ec4\u540d = {&lt;\u5143\u7d201&gt;, &lt;\u5143\u7d202&gt;, ..., &lt;\u5143\u7d20n&gt;};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c\u3001\u3001&#8230;\u3001\u662f\u6570\u7ec4\u5143\u7d20\u7684\u503c\u3002<\/p>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nString[] names = {\"John\", \"Mary\", \"Bob\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>\u6570\u7ec4\u540d[\u7d22\u5f15]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff0c\u662f\u6570\u7ec4\u5143\u7d20\u7684\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/p>\n<p><strong>\u4f8b\u5982\uff1a<\/strong><\/p>\n<pre>System.out.println(numbers[0]); \/\/ \u8f93\u51fa 1\nSystem.out.println(names[2]); \/\/ \u8f93\u51fa Bob<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u6570\u7ec4\u5927\u5c0f\u4e00\u65e6\u5b9a\u4e49\uff0c\u5c31\u4e0d\u80fd\u6539\u53d8\u3002<\/li>\n<li>\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u7d22\u5f15\u4e0d\u80fd\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u7ec4\u4ef6\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\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 \u4e2d\u5b9a\u4e49\u7ec4\u4ef6\u6570\u7ec4\u5305\u62ec\u4e09\u4e2a\u6b65\u9aa4\uff1a1. \u5b9a\u4e49\u6570\u7ec4\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u6307\u5b9a\u6570\u636e\u7c7b\u578b\u548c\u6570\u7ec4\u540d\u79f0\uff0c\u518d\u7528 new \u6307\u5b9a\u5927\u5c0f\u30022. \u521d\u59cb\u5316\u6570\u7ec4\uff1a\u7528\u5927\u62ec\u53f7 {} \u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u30023. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u7528\u65b9\u62ec\u53f7 [] \u548c\u7d22\u5f15\u8bbf\u95ee\u5143\u7d20\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002 Java \u4e2d\u7ec4\u4ef6\u6570\u7ec4\u5b9a\u4e49 \u5b9a\u4e49\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u5b9a\u4e49\u4e00\u4e2a\u7ec4\u4ef6\u6570\u7ec4\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a &lt;\u6570\u636e\u7c7b\u578b&gt;[] \u6570\u7ec4\u540d = new &lt;\u6570\u636e\u7c7b\u578b&gt;[\u5927\u5c0f]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff0c\u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u636e\u7c7b\u578b\uff0c\u662f\u6570\u7ec4\u7684\u540d\u79f0\uff0c\u662f\u6570\u7ec4\u7684\u5927\u5c0f\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4f8b\u5982\uff1a int[] numbers = new int[5]; String[] names = new String[3]; \u767b\u5f55\u540e\u590d\u5236 \u521d\u59cb\u5316\u6570\u7ec4 \u5b9a\u4e49\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u5927\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u5143\u7d20\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a &lt;\u6570\u636e\u7c7b\u578b&gt;[] \u6570\u7ec4\u540d = {&lt;\u5143\u7d201&gt;, &lt;\u5143\u7d202&gt;, &#8230;, &lt;\u5143\u7d20n&gt;}; \u767b\u5f55\u540e\u590d\u5236 [&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-66009","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66009","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=66009"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66009\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}