{"id":202914,"date":"2025-05-22T10:09:01","date_gmt":"2025-05-22T02:09:01","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202914\/"},"modified":"2025-05-22T10:09:01","modified_gmt":"2025-05-22T02:09:01","slug":"java%e4%b8%ad%e5%87%bd%e6%95%b0%e4%b8%8e%e6%96%b9%e6%b3%95%e7%9a%84%e5%ba%94%e7%94%a8%e5%9c%ba%e6%99%af%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202914\/","title":{"rendered":"Java\u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9\u6bd4"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9\u6bd4<\/h1>\n<p><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9\u6bd4\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p>Java \u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u533a\u522b\uff1a\u51fd\u6570\u662f\u4e0d\u53ef\u53d8\u7684\u8ba1\u7b97\u5355\u5143\uff0c\u4e0d\u5c5e\u4e8e\u5bf9\u8c61\uff0c\u7528\u4e8e\u6267\u884c\u4e00\u6b21\u6027\u8ba1\u7b97\uff1b\u65b9\u6cd5\u5c5e\u4e8e\u5bf9\u8c61\uff0c\u53ef\u8bbf\u95ee\u5e76\u4fee\u6539\u5bf9\u8c61\u72b6\u6001\uff0c\u7528\u4e8e\u6267\u884c\u5bf9\u8c61\u64cd\u4f5c\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729997189671da98501156.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9\u6bd4<\/strong><\/p>\n<p>Java \u4e2d\uff0c\u51fd\u6570\u548c\u65b9\u6cd5\u662f\u4e24\u4e2a\u5bc6\u5207\u76f8\u5173\u7684\u6982\u5ff5\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u7ec6\u5fae\u5dee\u522b\u3002\u51fd\u6570\u662f\u4e0d\u53ef\u53d8\u7684\u8ba1\u7b97\u5355\u5143\uff0c\u4e0d\u5c5e\u4e8e\u4efb\u4f55\u5bf9\u8c61\uff0c\u800c\u65b9\u6cd5\u662f\u5bf9\u8c61\u7684\u4e00\u90e8\u5206\uff0c\u53ef\u4fee\u6539\u5bf9\u8c61\u7684\u72b6\u6001\u3002<\/p>\n<p><strong>\u51fd\u6570<\/strong><\/p>\n<ul>\n<li>\u5b9a\u4e49\uff1a\u4e0d\u53ef\u53d8\u7684\u8ba1\u7b97\u5355\u5143\uff0c\u8868\u73b0\u4e3a <code>static<\/code> \u5173\u952e\u5b57\u4fee\u9970\u7684\u65b9\u6cd5\u3002<\/li>\n<li>\u7279\u70b9\uff1a\u4e0d\u5c5e\u4e8e\u4efb\u4f55\u5bf9\u8c61\uff0c\u53ea\u63a5\u6536\u53c2\u6570\u5e76\u8fd4\u56de\u7ed3\u679c\u3002<\/li>\n<li>\u7528\u6cd5\uff1a\u5f53\u9700\u8981\u6267\u884c\u4e00\u6b21\u6027\u8ba1\u7b97\u6216\u64cd\u4f5c\u65f6\uff0c\u901a\u5e38\u4f7f\u7528\u51fd\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li>\u5b9a\u4e49\uff1a\u5c5e\u4e8e\u5bf9\u8c61\u7684\u8ba1\u7b97\u5355\u5143\uff0c\u4e0d\u4f7f\u7528 <code>static<\/code> \u5173\u952e\u5b57\u4fee\u9970\u3002<\/li>\n<li>\u7279\u70b9\uff1a\u53ef\u4ee5\u8bbf\u95ee\u5bf9\u8c61\u72b6\u6001\uff0c\u5e76\u53ef\u4ee5\u4fee\u6539\u5bf9\u8c61\u3002<\/li>\n<li>\u7528\u6cd5\uff1a\u5f53\u9700\u8981\u6267\u884c\u7279\u5b9a\u7684\u5bf9\u8c61\u64cd\u4f5c\u6216\u4fee\u6539\u5bf9\u8c61\u72b6\u6001\u65f6\uff0c\u901a\u5e38\u4f7f\u7528\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<p><strong>\u5e94\u7528\u573a\u666f\u5bf9\u6bd4<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th><strong>\u573a\u666f<\/strong><\/th>\n<th><strong>\u51fd\u6570<\/strong><\/th>\n<th><strong>\u65b9\u6cd5<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6267\u884c\u4e00\u6b21\u6027\u8ba1\u7b97<\/td>\n<td>\u9002\u7528<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u8bbf\u95ee\u5bf9\u8c61\u72b6\u6001<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<td>\u9002\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u4fee\u6539\u5bf9\u8c61\u72b6\u6001<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<td>\u9002\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u72ec\u7acb\u4e8e\u5bf9\u8c61\u64cd\u4f5c<\/td>\n<td>\u9002\u7528<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u8c61\u7279\u5b9a\u64cd\u4f5c<\/td>\n<td>\u4e0d\u9002\u7528<\/td>\n<td>\u9002\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p><strong>\u51fd\u6570\u793a\u4f8b\uff1a\u8ba1\u7b97\u4e24\u4e2a\u6570\u4e4b\u548c<\/strong><\/p>\n<pre>\/\/ \u51fd\u6570\u5b9a\u4e49\npublic static int sum(int a, int b) {\n  return a + b;\n}\n\n\/\/ \u51fd\u6570\u8c03\u7528\nint result = sum(3, 5);<\/pre>\n<p><strong>\u65b9\u6cd5\u793a\u4f8b\uff1a\u66f4\u65b0\u5b66\u751f\u4fe1\u606f<\/strong><\/p>\n<pre>class Student {\n  private String name;\n  private int age;\n\n  \/\/ \u65b9\u6cd5\u5b9a\u4e49\n  public void updateName(String newName) {\n    this.name = newName;\n  }\n\n  \/\/ \u65b9\u6cd5\u8c03\u7528\n  Student stu = new Student();\n  stu.updateName(\"Alice\");\n}<\/pre>\n<p>\u4eca\u5929\u5173\u4e8e\u300aJava\u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9\u6bd4\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u4e2d\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5e94\u7528\u573a\u666f\u5bf9&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202914","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202914"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202914\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}