{"id":65694,"date":"2025-05-03T08:37:25","date_gmt":"2025-05-03T00:37:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65694\/"},"modified":"2025-05-03T08:37:25","modified_gmt":"2025-05-03T00:37:25","slug":"java%e6%80%8e%e4%b9%88%e5%a3%b0%e6%98%8e%e5%af%b9%e8%b1%a1%e7%9a%84%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65694\/","title":{"rendered":"java\u600e\u4e48\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4\uff1a\u5148\u58f0\u660e\u7c7b\u578b\u548c\u6570\u7ec4\u540d\uff0c\u5982\uff1a [] ;\uff0c\u7136\u540e\u4f7f\u7528 new \u5173\u952e\u5b57\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u5982\uff1a [] = new [];\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111307301790498.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u5982\u4f55\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u8981\u58f0\u660e\u4e00\u4e2a\u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>&lt;\u7c7b\u578b&gt; [] &lt;\u6570\u7ec4\u540d\u79f0&gt;;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li> \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/li>\n<li> \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u58f0\u660e\u4e00\u4e2a String \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a<\/p>\n<pre>String[] names;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u58f0\u660e\u4e00\u4e2a Integer \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a<\/p>\n<pre>Integer[] ages;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6570\u7ec4\u7684\u521d\u59cb\u5316<\/strong><\/p>\n<p>\u58f0\u660e\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>&lt;\u7c7b\u578b&gt; [] &lt;\u6570\u7ec4\u540d\u79f0&gt; = new &lt;\u7c7b\u578b&gt;[&lt;\u957f\u5ea6&gt;];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li> \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002<\/li>\n<li> \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n<li> \u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u521d\u59cb\u5316\u4e00\u4e2a\u957f\u5ea6\u4e3a 3 \u7684 String \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a<\/p>\n<pre>String[] names = new String[3];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u521d\u59cb\u5316\u4e00\u4e2a\u957f\u5ea6\u4e3a 5 \u7684 Integer \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a<\/p>\n<pre>Integer[] ages = new Integer[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6570\u7ec4\u8d4b\u503c<\/strong><\/p>\n<p>\u53ef\u4ee5\u9010\u4e2a\u5143\u7d20\u6216\u901a\u8fc7\u6570\u7ec4\u7d22\u5f15\u5bf9\u6570\u7ec4\u5143\u7d20\u8fdb\u884c\u8d4b\u503c\u3002<\/p>\n<p><strong>\u9010\u4e2a\u5143\u7d20\u8d4b\u503c\uff1a<\/strong><\/p>\n<pre>names[0] = \"Alice\";\nnames[1] = \"Bob\";\nnames[2] = \"Charlie\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6570\u7ec4\u7d22\u5f15\u8d4b\u503c\uff1a<\/strong><\/p>\n<pre>int index = 0;\nnames[index] = \"Alice\";\nages[index++] = 20;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u58f0\u660e\u5bf9\u8c61\u7684\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>\u5728 java \u4e2d\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4\uff1a\u5148\u58f0\u660e\u7c7b\u578b\u548c\u6570\u7ec4\u540d\uff0c\u5982\uff1a [] ;\uff0c\u7136\u540e\u4f7f\u7528 new \u5173\u952e\u5b57\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u5982\uff1a [] = new [];\u3002 Java \u4e2d\u5982\u4f55\u58f0\u660e\u5bf9\u8c61\u7684\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u8981\u58f0\u660e\u4e00\u4e2a\u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a &lt;\u7c7b\u578b&gt; [] &lt;\u6570\u7ec4\u540d\u79f0&gt;; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002 \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u58f0\u660e\u4e00\u4e2a String \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a String[] names; \u767b\u5f55\u540e\u590d\u5236 \u58f0\u660e\u4e00\u4e2a Integer \u7c7b\u578b\u5bf9\u8c61\u6570\u7ec4\uff1a Integer[] ages; \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u7684\u521d\u59cb\u5316 \u58f0\u660e\u6570\u7ec4\u540e\uff0c\u53ef\u4ee5\u5bf9\u6570\u7ec4\u8fdb\u884c\u521d\u59cb\u5316\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a &lt;\u7c7b\u578b&gt; [] &lt;\u6570\u7ec4\u540d\u79f0&gt; = new &lt;\u7c7b\u578b&gt;[&lt;\u957f\u5ea6&gt;]; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\u3002 \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002 \u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521d\u59cb\u5316\u4e00\u4e2a\u957f\u5ea6\u4e3a 3 \u7684 [&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-65694","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65694","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=65694"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65694\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}