{"id":38269,"date":"2024-11-26T15:35:25","date_gmt":"2024-11-26T07:35:25","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38269\/"},"modified":"2024-11-26T15:35:25","modified_gmt":"2024-11-26T07:35:25","slug":"%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84java%e6%80%8e%e4%b9%88%e8%b5%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38269\/","title":{"rendered":"\u5b57\u7b26\u4e32\u6570\u7ec4java\u600e\u4e48\u8d4b\u503c"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\uff1a\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u548c\u5143\u7d20\u503c\u3002\u5faa\u73af\u8d4b\u503c\uff1a\u52a8\u6001\u5206\u914d\u6570\u7ec4\u5927\u5c0f\u5e76\u4f7f\u7528\u7d22\u5f15\u4e3a\u5143\u7d20\u8d4b\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111411482550585.jpg\" class=\"aligncenter\" title=\"\u5b57\u7b26\u4e32\u6570\u7ec4java\u600e\u4e48\u8d4b\u503c\u63d2\u56fe\" alt=\"\u5b57\u7b26\u4e32\u6570\u7ec4java\u600e\u4e48\u8d4b\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong> Java \u8d4b\u503c<\/strong><\/p>\n<p><strong>\u5982\u4f55\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\uff1f<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] arr = {\"Hello\", \"World\", \"Java\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528\u5faa\u73af\u8d4b\u503c<\/strong><\/p>\n<pre>String[] arr = new String[3];\narr[0] = \"Hello\";\narr[1] = \"World\";\narr[2] = \"Java\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8be6\u7ec6\u8bf4\u660e<\/strong><\/p>\n<p><strong>\u76f4\u63a5\u8d4b\u503c<\/strong>\u65b9\u6cd5\u7b80\u5355\u76f4\u63a5\uff0c\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u5e76\u6307\u5b9a\u5143\u7d20\u503c\u3002<\/p>\n<p><strong>\u5faa\u73af\u8d4b\u503c<\/strong>\u65b9\u6cd5\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u5206\u914d\u6570\u7ec4\u5927\u5c0f\uff0c\u7136\u540e\u4f7f\u7528\u7d22\u5f15\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5b57\u7b26\u4e32\u6570\u7ec4\u53ef\u4ee5\u5305\u542b\u7a7a\u5b57\u7b26\u4e32\u6216 null \u503c\u3002<\/li>\n<li>\u5c1d\u8bd5\u8bbf\u95ee\u6570\u7ec4\u7d22\u5f15\u8303\u56f4\u4e4b\u5916\u7684\u5143\u7d20\u5c06\u5bfc\u81f4\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u5f02\u5e38 (IndexOutOfBoundsException)\u3002<\/li>\n<li>\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u590d\u5236\u6216\u6269\u5c55\u5b57\u7b26\u4e32\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>\/\/ \u76f4\u63a5\u8d4b\u503c\nString[] colors = {\"Red\", \"Green\", \"Blue\"};\n\n\/\/ \u5faa\u73af\u8d4b\u503c\nString[] fruits = new String[4];\nfruits[0] = \"Apple\";\nfruits[1] = \"Banana\";\nfruits[2] = \"Orange\";\nfruits[3] = \"Grapes\";\n\n\/\/ \u8f93\u51fa\u6570\u7ec4\u5143\u7d20\nfor (String color : colors) {\n    System.out.println(color);\n}\n\nfor (String fruit : fruits) {\n    System.out.println(fruit);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>Red\nGreen\nBlue\nApple\nBanana\nOrange\nGrapes<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8d4b\u503c\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\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\uff1a\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u548c\u5143\u7d20\u503c\u3002\u5faa\u73af\u8d4b\u503c\uff1a\u52a8\u6001\u5206\u914d\u6570\u7ec4\u5927\u5c0f\u5e76\u4f7f\u7528\u7d22\u5f15\u4e3a\u5143\u7d20\u8d4b\u503c\u3002 Java \u8d4b\u503c \u5982\u4f55\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\uff1f \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u5411\u5b57\u7b26\u4e32\u6570\u7ec4\u8d4b\u503c\uff1a \u65b9\u6cd5 1\uff1a\u76f4\u63a5\u8d4b\u503c \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] arr = {&#8220;Hello&#8221;, &#8220;World&#8221;, &#8220;Java&#8221;}; \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528\u5faa\u73af\u8d4b\u503c String[] arr = new String[3]; arr[0] = &#8220;Hello&#8221;; arr[1] = &#8220;World&#8221;; arr[2] = &#8220;Java&#8221;; \u767b\u5f55\u540e\u590d\u5236 \u8be6\u7ec6\u8bf4\u660e \u76f4\u63a5\u8d4b\u503c\u65b9\u6cd5\u7b80\u5355\u76f4\u63a5\uff0c\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u521d\u59cb\u5316\u6570\u7ec4\u5e76\u6307\u5b9a\u5143\u7d20\u503c\u3002 \u5faa\u73af\u8d4b\u503c\u65b9\u6cd5\u5141\u8bb8\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u5206\u914d\u6570\u7ec4\u5927\u5c0f\uff0c\u7136\u540e\u4f7f\u7528\u7d22\u5f15\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002 \u6ce8\u610f\uff1a \u5b57\u7b26\u4e32\u6570\u7ec4\u53ef\u4ee5\u5305\u542b\u7a7a\u5b57\u7b26\u4e32\u6216 null \u503c\u3002 \u5c1d\u8bd5\u8bbf\u95ee\u6570\u7ec4\u7d22\u5f15\u8303\u56f4\u4e4b\u5916\u7684\u5143\u7d20\u5c06\u5bfc\u81f4\u6570\u7ec4\u4e0b\u6807\u8d8a\u754c\u5f02\u5e38 (IndexOutOfBoundsException)\u3002 \u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u590d\u5236\u6216\u6269\u5c55\u5b57\u7b26\u4e32\u6570\u7ec4\u3002 \u793a\u4f8b\uff1a \/\/ \u76f4\u63a5\u8d4b\u503c String[] [&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-38269","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38269","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=38269"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38269\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}