{"id":202678,"date":"2025-05-22T10:48:04","date_gmt":"2025-05-22T02:48:04","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202678\/"},"modified":"2025-05-22T10:48:04","modified_gmt":"2025-05-22T02:48:04","slug":"java-%e6%96%b9%e6%b3%95%e4%b8%ad%e4%bc%a0%e9%80%92%e8%87%aa%e5%ae%9a%e4%b9%89%e5%af%b9%e8%b1%a1%e5%8f%82%e6%95%b0%e6%97%b6%ef%bc%8c%e4%bc%a0%e9%80%92%e7%9a%84%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202678\/","title":{"rendered":"Java \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u4f20\u9012\u7684\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u4f20\u9012\u7684\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u4f20\u9012\u7684\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p>\u5728 Java \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\uff0c\u4f20\u9012\u7684\u662f\u5bf9\u8c61\u7684\u5f15\u7528\u800c\u975e\u526f\u672c\uff0c\u65b9\u6cd5\u53ef\u4ee5\u4fee\u6539\u4f20\u5165\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\uff0c\u5373\uff1a1. \u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u5bf9\u8c61\u5b57\u6bb5\u548c\u65b9\u6cd5\u30022. \u65b9\u6cd5\u5bf9\u5bf9\u8c61\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u5bf9\u8c61\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729931090671ca752906e5.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\u4f20\u9012\u7684\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n<p>\u5728 Java \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u4f20\u9012\u7684\u4e0d\u662f\u5bf9\u8c61\u7684\u539f\u59cb\u526f\u672c\uff0c\u800c\u662f\u5bf9\u8c61\u7684\u5f15\u7528\u3002\u8fd9\u610f\u5473\u7740\u65b9\u6cd5\u53ef\u4ee5\u4fee\u6539\u4f20\u5165\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\uff0c\u5373\u4f7f\u65b9\u6cd5\u8fd4\u56de\u540e\uff0c\u8fd9\u4e9b\u66f4\u6539\u4e5f\u4f1a\u5728\u8c03\u7528\u8005\u4e2d\u53ef\u89c1\u3002<\/p>\n<p><strong>\u57fa\u672c\u539f\u7406<\/strong><\/p>\n<p>\u5f53\u60a8\u5728\u65b9\u6cd5\u4e2d\u4f20\u9012\u4e00\u4e2a\u5f15\u7528\u7c7b\u578b\u7684\u503c\uff08\u5982\u5bf9\u8c61\uff09\u65f6\uff0c\u5b9e\u9645\u4e0a\u4f20\u9012\u7684\u662f\u8be5\u503c\u5728\u5185\u5b58\u4e2d\u7684\u5730\u5740\u3002\u8fd9\u610f\u5473\u7740\uff1a<\/p>\n<ul>\n<li>\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u539f\u59cb\u5bf9\u8c61\u7684\u5b57\u6bb5\u548c\u65b9\u6cd5\u3002<\/li>\n<li>\u65b9\u6cd5\u5bf9\u8be5\u5bf9\u8c61\u7684\u4efb\u4f55\u4fee\u6539\u90fd\u4f1a\u5f71\u54cd\u539f\u59cb\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b Person \u7c7b\uff1a<\/p>\n<pre>public class Person {\n    private String name;\n    private int age;\n\n    \/\/ \u6784\u9020\u51fd\u6570\n    public Person(String name, int age) {\n        this.name = name;\n        this.age = age;\n    }\n\n    \/\/ \u540d\u79f0 getter\/setter\n    public String getName() {\n        return name;\n    }\n\n    public void setName(String name) {\n        this.name = name;\n    }\n}<\/pre>\n<p>\u73b0\u5728\uff0c\u8ba9\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5c06 Person \u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u5e76\u6253\u5370\u5176\u540d\u79f0\uff1a<\/p>\n<pre>public void printName(Person person) {\n    System.out.println(person.getName());\n}<\/pre>\n<p>\u5728\u4e3b\u65b9\u6cd5\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa Person \u5bf9\u8c61\u5e76\u5c06\u5176\u4f20\u9012\u7ed9 printName() \u65b9\u6cd5\uff1a<\/p>\n<pre>public static void main(String[] args) {\n    Person person = new Person(\"John\", 30);\n    printName(person); \/\/ \u4f20\u9012\u5f15\u7528\n    \/\/ \u4fee\u6539\u539f\u59cb Person \u5bf9\u8c61\n    person.setName(\"Jane\");\n    printName(person); \/\/ \u518d\u6b21\u6253\u5370\u4fee\u6539\u540e\u7684\u540d\u79f0\n}<\/pre>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<pre>John\nJane<\/pre>\n<p>\u5728\u8be5\u793a\u4f8b\u4e2d\uff0c\u5f53\u6211\u4eec\u5c06 Person \u5bf9\u8c61\u4f20\u9012\u7ed9 printName() \u65b9\u6cd5\u65f6\uff0c\u4f20\u9012\u7684\u662f\u5bf9\u8c61\u7684\u5f15\u7528\u3002\u65b9\u6cd5\u53ef\u4ee5\u8bbf\u95ee\u548c\u4fee\u6539\u5bf9\u8c61\u7684\u5b57\u6bb5\uff0c\u5982\u6240\u793a\u3002<\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<p>\u5f53\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u51e0\u70b9\uff1a<\/p>\n<ul>\n<li>\u59cb\u7ec8\u786e\u4fdd\u4f20\u9012\u5408\u6cd5\u7684\u5bf9\u8c61\u5f15\u7528\uff08\u975e null\uff09\u3002<\/li>\n<li>\u65b9\u6cd5\u5bf9\u5bf9\u8c61\u7684\u4fee\u6539\u4f1a\u5f71\u54cd\u539f\u59cb\u5bf9\u8c61\uff0c\u5373\u4f7f\u65b9\u6cd5\u8fd4\u56de\u540e\u4e5f\u662f\u5982\u6b64\u3002<\/li>\n<li>\u8c28\u614e\u4f20\u9012\u53ef\u53d8\u5bf9\u8c61\uff0c\u56e0\u4e3a\u5b83\u4eec\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u526f\u4f5c\u7528\u3002<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5173\u4e8e\u300aJava \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2\u6570\u65f6\uff0c\u4f20\u9012\u7684\u662f\u4ec0\u4e48\uff1f\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 \u65b9\u6cd5\u4e2d\u4f20\u9012\u81ea\u5b9a\u4e49\u5bf9\u8c61\u53c2&#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-202678","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202678","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=202678"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202678\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}