{"id":34774,"date":"2024-11-26T11:37:23","date_gmt":"2024-11-26T03:37:23","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34774\/"},"modified":"2024-11-26T11:37:23","modified_gmt":"2024-11-26T03:37:23","slug":"java%e4%b8%ad%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%ae%9a%e4%b9%89","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34774\/","title":{"rendered":"java\u4e2d\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49"},"content":{"rendered":"

\n \u5982\u4f55\u5b9a\u4e49\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a\u5b57\u9762\u91cf\u5b9a\u4e49\uff1a\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u548c\u9017\u53f7\u5206\u9694\u5143\u7d20\u3002new \u5173\u952e\u5b57\u5b9a\u4e49\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u6307\u5b9a\u957f\u5ea6\uff0c\u518d\u5355\u72ec\u8d4b\u503c\u5143\u7d20\u3002\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7 []\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a\u4f7f\u7528 length \u5c5e\u6027\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u5b57\u7b26\u4e32\u6570\u7ec4\u600e\u4e48\u5b9a\u4e49\u63d2\u56fe\"<\/p>\n

\u5728 Java \u4e2d\u5b9a\u4e49<\/strong><\/p>\n

Java \u4e2d\u5b9a\u4e49\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a<\/p>\n

1. \u5b57\u9762\u91cf\u5b9a\u4e49<\/strong><\/p>\n

\u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u5728\u4ee3\u7801\u4e2d\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u5b9a\u4e49\u6570\u7ec4\uff0c\u5176\u4e2d\u5143\u7d20\u4ee5\u9017\u53f7\u5206\u9694\u3002<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

String[] names = {\"John\", \"Mary\", \"Bob\"};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. new \u5173\u952e\u5b57\u5b9a\u4e49<\/strong><\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5e76\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u7136\u540e\uff0c\u5fc5\u987b\u5355\u72ec\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002<\/p>\n
String[] names = new String[3];\nnames[0] = \"John\";\nnames[1] = \"Mary\";\nnames[2] = \"Bob\";<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u5176\u4e2d\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002<\/p>\n
System.out.println(names[0]); \/\/ \u6253\u5370 \"John\"<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n
int length = names.length; \/\/ 3<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u5b9a\u4e49\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":"
\u5982\u4f55\u5b9a\u4e49\u5b57\u7b26\u4e32\u6570\u7ec4\uff1a\u5b57\u9762\u91cf\u5b9a\u4e49\uff1a\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u548c\u9017\u53f7\u5206\u9694\u5143\u7d20\u3002new \u5173\u952e\u5b57\u5b9a\u4e49\uff1a\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u6307\u5b9a\u957f\u5ea6\uff0c\u518d\u5355\u72ec\u8d4b\u503c\u5143\u7d20\u3002\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7 []\uff0c\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a\u4f7f\u7528 length \u5c5e\u6027\u3002 \u5728 Java \u4e2d\u5b9a\u4e49 Java \u4e2d\u5b9a\u4e49\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\uff1a 1. \u5b57\u9762\u91cf\u5b9a\u4e49 \u8fd9\u79cd\u65b9\u6cd5\u76f4\u63a5\u5728\u4ee3\u7801\u4e2d\u4f7f\u7528\u82b1\u62ec\u53f7 {} \u5b9a\u4e49\u6570\u7ec4\uff0c\u5176\u4e2d\u5143\u7d20\u4ee5\u9017\u53f7\u5206\u9694\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] names = {“John”, “Mary”, “Bob”}; \u767b\u5f55\u540e\u590d\u5236 2. new \u5173\u952e\u5b57\u5b9a\u4e49 \u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528 new \u5173\u952e\u5b57\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5e76\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u7136\u540e\uff0c\u5fc5\u987b\u5355\u72ec\u4e3a\u6bcf\u4e2a\u5143\u7d20\u8d4b\u503c\u3002 String[] names = new String[3]; names[0] = “John”; names[1] = “Mary”; names[2] = “Bob”; \u767b\u5f55\u540e\u590d\u5236 \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u53ef\u4ee5\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff0c\u5176\u4e2d\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002 System.out.println(names[0]); […]<\/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-34774","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34774","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=34774"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34774\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}