{"id":202882,"date":"2025-05-22T11:39:49","date_gmt":"2025-05-22T03:39:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202882\/"},"modified":"2025-05-22T11:39:49","modified_gmt":"2025-05-22T03:39:49","slug":"java%e5%87%bd%e6%95%b0%e4%b8%8e%e6%96%b9%e6%b3%95%e7%9a%84%e5%bc%82%e5%90%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202882\/","title":{"rendered":"Java\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5f02\u540c"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5f02\u540c<\/h1>\n<p>\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5f02\u540c\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\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\u60f3\u6df1\u5165\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>Java \u4e2d\u51fd\u6570\u548c\u65b9\u6cd5\u7684\u533a\u522b\u5982\u4e0b\uff1a\u6240\u5c5e\uff1a\u51fd\u6570\u5c5e\u4e8e\u5168\u5c40\u8303\u56f4\uff0c\u65b9\u6cd5\u5c5e\u4e8e\u7c7b\u6216\u63a5\u53e3\u3002\u5bf9\u8c61\u8bbf\u95ee\uff1a\u51fd\u6570\u65e0\u6cd5\u8bbf\u95ee\u5bf9\u8c61\u72b6\u6001\uff0c\u800c\u65b9\u6cd5\u53ef\u4ee5\u3002\u4fee\u9970\u7b26\uff1a\u51fd\u6570\u53ef\u7528 public\u3001protected\u3001private \u4fee\u9970\uff0c\u65b9\u6cd5\u53ef\u7528 public\u3001protected\u3001private\u3001default \u4fee\u9970\u3002\u8fd4\u56de\u7c7b\u578b\uff1a\u51fd\u6570\u5fc5\u987b\u6307\u5b9a\u8fd4\u56de\u7c7b\u578b\uff0c\u65b9\u6cd5\u53ef\u4ee5\u6307\u5b9a\u8fd4\u56de\u7c7b\u578b\uff0c\u4e5f\u53ef\u4ee5\u662f void\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729954658671d0362d0f21.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u4e2d\u51fd\u6570\u548c\u65b9\u6cd5\u7684\u5f02\u540c<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u51fd\u6570\u548c\u65b9\u6cd5\u7ecf\u5e38\u88ab\u4ea4\u66ff\u4f7f\u7528\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u4e9b\u5173\u952e\u5dee\u5f02\u3002<\/p>\n<p><strong>\u5b9a\u4e49\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u51fd\u6570\uff1a<\/strong>\u4e00\u4e2a\u5177\u6709\u540d\u79f0\u3001\u53c2\u6570\u5217\u8868\u548c\u8fd4\u56de\u7c7b\u578b\u7684\u5b50\u7a0b\u5e8f\uff0c\u88ab\u5176\u4ed6\u4ee3\u7801\u8c03\u7528\u3002<\/li>\n<li><strong>\u65b9\u6cd5\uff1a<\/strong>\u4e0e\u51fd\u6570\u7c7b\u4f3c\uff0c\u4f46\u5c5e\u4e8e\u7c7b\u6216\u63a5\u53e3\uff0c\u53ef\u4ee5\u8bbf\u95ee\u5bf9\u8c61\u72b6\u6001\u3002<\/li>\n<\/ul>\n<p><strong>\u5173\u952e\u5dee\u5f02\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5f81<\/th>\n<th>\u51fd\u6570<\/th>\n<th>\u65b9\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u6240\u5c5e<\/td>\n<td>\u5168\u5c40\u8303\u56f4<\/td>\n<td>\u7c7b\u6216\u63a5\u53e3\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>\u5bf9\u8c61\u8bbf\u95ee<\/td>\n<td>\u65e0<\/td>\n<td>\u53ef\u8bbf\u95ee\u5bf9\u8c61\u72b6\u6001<\/td>\n<\/tr>\n<tr>\n<td>\u4fee\u9970\u7b26<\/td>\n<td>public\u3001protected\u3001private<\/td>\n<td>public\u3001protected\u3001private\u3001default<\/td>\n<\/tr>\n<tr>\n<td>\u8fd4\u56de\u7c7b\u578b<\/td>\n<td>\u5fc5\u987b\u6307\u5b9a<\/td>\n<td>\u53ef\u9009 void<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u573a\u666f\uff1a<\/p>\n<ul>\n<li>\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u8ba1\u7b97\u4e24\u4e2a\u6570\u5b57\u7684\u548c\u3002<\/li>\n<li>\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5\u6765\u4ece\u5bf9\u8c61\u83b7\u53d6\u540d\u79f0\u3002<\/li>\n<\/ul>\n<pre>\/\/ \u51fd\u6570\npublic static int sum(int a, int b) {\n    return a + b;\n}\n\n\/\/ \u65b9\u6cd5\npublic String getName() {\n    return this.name;\n}<\/pre>\n<p><strong>\u51fd\u6570\u4f7f\u7528\uff1a<\/strong><\/p>\n<pre>int result = sum(10, 20);<\/pre>\n<p><strong>\u65b9\u6cd5\u4f7f\u7528\uff1a<\/strong><\/p>\n<pre>Person person = new Person();\nString name = person.getName();<\/pre>\n<p><strong>\u6ce8\u610f\uff1a<\/strong>\u5728 Java \u4e2d\uff0c\u65b9\u6cd5\u5b9e\u9645\u4e0a\u662f\u51fd\u6570\u7684\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\uff0c\u4e13\u95e8\u7528\u4e8e\u5728\u7c7b\u6216\u63a5\u53e3\u4e2d\u4f7f\u7528\u3002\u56e0\u6b64\uff0c\u51fd\u6570\u548c\u65b9\u6cd5\u53ef\u4ee5\u6267\u884c\u7c7b\u4f3c\u7684\u4efb\u52a1\uff0c\u4f46\u5b83\u4eec\u5728\u4f5c\u7528\u57df\u3001\u5bf9\u8c61\u8bbf\u95ee\u548c\u4fee\u9970\u7b26\u65b9\u9762\u6709\u4e00\u4e9b\u5fae\u5999\u7684\u5dee\u5f02\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u4e0e\u65b9\u6cd5\u7684\u5f02\u540c \u5b66\u4e60\u6587&#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-202882","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202882","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=202882"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202882\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}