{"id":36656,"date":"2024-11-26T12:45:54","date_gmt":"2024-11-26T04:45:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/36656\/"},"modified":"2024-11-26T12:45:54","modified_gmt":"2024-11-26T04:45:54","slug":"java%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e7%b1%bb%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/36656\/","title":{"rendered":"java\u600e\u4e48\u521b\u5efa\u7c7b\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u521b\u5efa java \u7c7b\u6570\u7ec4\u7684\u6b65\u9aa4\uff1a\u6307\u5b9a\u7c7b\u7c7b\u578b\uff1a\u4f7f\u7528 class[] \u6570\u7ec4\u540d\u79f0;\u521b\u5efa\u6570\u7ec4\uff1anames = new string[5];\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1anames[0] \/\/ \u8fd4\u56de\u7b2c\u4e00\u4e2a string \u5bf9\u8c61\u8d4b\u503c\uff1anames[1] = &#8220;alice&#8221;;\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/12\/2024111212542316437.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u521b\u5efa\u7c7b\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u521b\u5efa\u7c7b\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u7528 Java \u521b\u5efa\u7c7b\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u7c7b\u6570\u7ec4\u662f\u4e00\u4e2a\u5305\u542b\u7279\u5b9a\u7c7b\u7c7b\u578b\u5bf9\u8c61\u7684\u6570\u7ec4\u3002\u521b\u5efa\u7c7b\u6570\u7ec4\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><strong>1. \u6307\u5b9a\u7c7b\u7c7b\u578b<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u9700\u8981\u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u7c7b\u578b\u3002\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>Class&lt;\u7c7b\u578b\u540d\u79f0&gt;[] \u6570\u7ec4\u540d\u79f0;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u5305\u542b String \u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre>String[] names;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u521b\u5efa\u6570\u7ec4<\/strong><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u521b\u5efa\u6570\u7ec4\uff0c\u6307\u5b9a\u6240\u9700\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 5 \u7684 String \u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre>names = new String[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\u6574\u6570\u3002\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee names \u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre>names[0] \/\/ \u8fd4\u56de\u7b2c\u4e00\u4e2a String \u5bf9\u8c61<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u8d4b\u503c<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u5c06\u5143\u7d20\u8d4b\u503c\u7ed9\u6570\u7ec4\u3002\u4f8b\u5982\uff0c\u8981\u5c06 &#8220;Alice&#8221; \u8d4b\u503c\u7ed9 names \u6570\u7ec4\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre>names[1] = \"Alice\";<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f8b\u5b50<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u521b\u5efa int \u7c7b\u6570\u7ec4\u7684\u5b8c\u6574\u793a\u4f8b\uff1a<\/p>\n<pre>\/\/ \u6307\u5b9a\u7c7b\u7c7b\u578b\nint[] numbers;\n\n\/\/ \u521b\u5efa\u6570\u7ec4\nnumbers = new int[10];\n\n\/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\nint firstNumber = numbers[0]; \/\/ \u83b7\u53d6\u7b2c\u4e00\u4e2a\u6574\u6570\n\n\/\/ \u8d4b\u503c\nnumbers[5] = 100; \/\/ \u5c06 100 \u8d4b\u503c\u7ed9\u7b2c\u516d\u4e2a\u6574\u6570<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u7c7b\u6570\u7ec4\u5728 Java \u4e2d\u662f\u534f\u53d8\u7684\uff0c\u8fd9\u610f\u5473\u7740\u53ef\u4ee5\u5c06\u5b50\u7c7b\u5bf9\u8c61\u7684\u6570\u7ec4\u8d4b\u503c\u7ed9\u7236\u7c7b\u6570\u7ec4\u53d8\u91cf\u3002<\/li>\n<li>\u6570\u7ec4\u957f\u5ea6\u5728\u521b\u5efa\u540e\u662f\u4e0d\u53ef\u53d8\u7684\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521b\u5efa\u7c7b\u6570\u7ec4\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>\u521b\u5efa java \u7c7b\u6570\u7ec4\u7684\u6b65\u9aa4\uff1a\u6307\u5b9a\u7c7b\u7c7b\u578b\uff1a\u4f7f\u7528 class[] \u6570\u7ec4\u540d\u79f0;\u521b\u5efa\u6570\u7ec4\uff1anames = new string[5];\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1anames[0] \/\/ \u8fd4\u56de\u7b2c\u4e00\u4e2a string \u5bf9\u8c61\u8d4b\u503c\uff1anames[1] = &#8220;alice&#8221;; \u5982\u4f55\u7528 Java \u521b\u5efa\u7c7b\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u7c7b\u6570\u7ec4\u662f\u4e00\u4e2a\u5305\u542b\u7279\u5b9a\u7c7b\u7c7b\u578b\u5bf9\u8c61\u7684\u6570\u7ec4\u3002\u521b\u5efa\u7c7b\u6570\u7ec4\u6d89\u53ca\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u6307\u5b9a\u7c7b\u7c7b\u578b \u9996\u5148\uff0c\u9700\u8981\u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u7c7b\u578b\u3002\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Class&lt;\u7c7b\u578b\u540d\u79f0&gt;[] \u6570\u7ec4\u540d\u79f0; \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u8981\u521b\u5efa\u5305\u542b String \u5bf9\u8c61\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a String[] names; \u767b\u5f55\u540e\u590d\u5236 2. \u521b\u5efa\u6570\u7ec4 \u63a5\u4e0b\u6765\uff0c\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u521b\u5efa\u6570\u7ec4\uff0c\u6307\u5b9a\u6240\u9700\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff0c\u8981\u521b\u5efa\u4e00\u4e2a\u957f\u5ea6\u4e3a 5 \u7684 String \u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a names = new String[5]; \u767b\u5f55\u540e\u590d\u5236 3. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002\u7d22\u5f15\u662f\u4ece 0 \u5f00\u59cb\u7684\u6574\u6570\u3002\u4f8b\u5982\uff0c\u8981\u8bbf\u95ee names \u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a names[0] [&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-36656","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36656","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=36656"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/36656\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=36656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=36656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=36656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}