{"id":34757,"date":"2024-11-26T13:45:09","date_gmt":"2024-11-26T05:45:09","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34757\/"},"modified":"2024-11-26T13:45:09","modified_gmt":"2024-11-26T05:45:09","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34757\/","title":{"rendered":"java\u4e2d\u600e\u4e48\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u521d\u59cb\u5316\u6216\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u3002\u76f4\u63a5\u521d\u59cb\u5316\u901a\u8fc7 {} \u6307\u5b9a\u5143\u7d20\u5e76\u7528\u9017\u53f7\u5206\u9694\uff1bnew \u8fd0\u7b97\u7b26\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u5355\u72ec\u8bbe\u7f6e\u5143\u7d20\u503c\u3002\u65e0\u8bba\u65b9\u6cd5\u5982\u4f55\uff0c\u6570\u7ec4\u90fd\u662f\u5305\u542b\u5b57\u7b26\u4e32\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u503c\u8bbf\u95ee\u548c\u4fee\u6539\u5143\u7d20\uff0c\u5e76\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5143\u7d20\u6570\u91cf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110302275355708.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u600e\u4e48\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u4e2d\u600e\u4e48\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u521b\u5efa Java \u4e2d\u7684<\/strong><\/p>\n<p>\u5728 Java \u4e2d\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u76f4\u63a5\u521d\u59cb\u5316<\/strong><\/p>\n<p>\u76f4\u63a5\u521d\u59cb\u5316\u6cd5\u4f7f\u7528\u5927\u62ec\u53f7 {} \u5e76\u5728\u9017\u53f7\u5206\u9694\u7684\u5143\u7d20\u4e4b\u95f4\u6307\u5b9a\u5b57\u7b26\u4e32\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>String[] colors = {\"\u7ea2\", \"\u6a59\", \"\u9ec4\", \"\u7eff\", \"\u84dd\", \"\u975b\", \"\u7d2b\"};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 new \u8fd0\u7b97\u7b26<\/strong><\/p>\n<p>new \u8fd0\u7b97\u7b26\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528 size \u53c2\u6570\u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u7136\u540e\uff0c\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u5355\u72ec\u8bbe\u7f6e\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\uff1a<\/p>\n<pre>String[] colors = new String[7];\ncolors[0] = \"\u7ea2\";\ncolors[1] = \"\u6a59\";\ncolors[2] = \"\u9ec4\";\ncolors[3] = \"\u7eff\";\ncolors[4] = \"\u84dd\";\ncolors[5] = \"\u975b\";\ncolors[6] = \"\u7d2b\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u65e0\u8bba\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\uff0c\u521b\u5efa\u7684\u6570\u7ec4\u90fd\u662f\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u5143\u7d20\u7684\u5bf9\u8c61\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u8bbf\u95ee\u548c\u4f7f\u7528\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u65b9\u62ec\u53f7 [] \u6307\u5b9a\u7d22\u5f15\u503c\u6765\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\u3002<\/li>\n<li>\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 []= \u6765\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u73b0\u6709\u5143\u7d20\u3002<\/li>\n<li>\u4f7f\u7528 length \u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u6570\u91cf\u3002<\/li>\n<\/ol>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>\/\/ \u521b\u5efa\u4e00\u4e2a\u989c\u8272\u6570\u7ec4\nString[] colors = {\"\u7ea2\", \"\u6a59\", \"\u9ec4\", \"\u7eff\", \"\u84dd\", \"\u975b\", \"\u7d2b\"};\n\n\/\/ \u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u5143\u7d20\nSystem.out.println(colors[3]); \/\/ \u8f93\u51fa\uff1a\"\u7eff\"\n\n\/\/ \u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\ncolors[0] = \"\u7c89\u7ea2\";\n\n\/\/ \u83b7\u53d6\u6570\u7ec4\u5927\u5c0f\nSystem.out.println(colors.length); \/\/ \u8f93\u51fa\uff1a7<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u6709\u6548\u5730\u56de\u7b54\u4e86\u5982\u4f55\u5728 Java \u4e2d\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u600e\u4e48\u521b\u5efa\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>\u5728 java \u4e2d\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u521d\u59cb\u5316\u6216\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u3002\u76f4\u63a5\u521d\u59cb\u5316\u901a\u8fc7 {} \u6307\u5b9a\u5143\u7d20\u5e76\u7528\u9017\u53f7\u5206\u9694\uff1bnew \u8fd0\u7b97\u7b26\u521b\u5efa\u65b0\u6570\u7ec4\u5e76\u5355\u72ec\u8bbe\u7f6e\u5143\u7d20\u503c\u3002\u65e0\u8bba\u65b9\u6cd5\u5982\u4f55\uff0c\u6570\u7ec4\u90fd\u662f\u5305\u542b\u5b57\u7b26\u4e32\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u503c\u8bbf\u95ee\u548c\u4fee\u6539\u5143\u7d20\uff0c\u5e76\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5143\u7d20\u6570\u91cf\u3002 \u5982\u4f55\u521b\u5efa Java \u4e2d\u7684 \u5728 Java \u4e2d\u521b\u5efa\u5b57\u7b26\u4e32\u6570\u7ec4\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u76f4\u63a5\u521d\u59cb\u5316 \u76f4\u63a5\u521d\u59cb\u5316\u6cd5\u4f7f\u7528\u5927\u62ec\u53f7 {} \u5e76\u5728\u9017\u53f7\u5206\u9694\u7684\u5143\u7d20\u4e4b\u95f4\u6307\u5b9a\u5b57\u7b26\u4e32\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b String[] colors = {&#8220;\u7ea2&#8221;, &#8220;\u6a59&#8221;, &#8220;\u9ec4&#8221;, &#8220;\u7eff&#8221;, &#8220;\u84dd&#8221;, &#8220;\u975b&#8221;, &#8220;\u7d2b&#8221;}; \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 new \u8fd0\u7b97\u7b26 new \u8fd0\u7b97\u7b26\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5e76\u4f7f\u7528 size \u53c2\u6570\u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u7136\u540e\uff0c\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26\u5355\u72ec\u8bbe\u7f6e\u6bcf\u4e2a\u5143\u7d20\u7684\u503c\uff1a String[] colors = new String[7]; colors[0] = &#8220;\u7ea2&#8221;; colors[1] = &#8220;\u6a59&#8221;; colors[2] = &#8220;\u9ec4&#8221;; [&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-34757","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34757","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=34757"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34757\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}