{"id":1191,"date":"2026-04-08T09:19:42","date_gmt":"2026-04-08T01:19:42","guid":{"rendered":"https:\/\/yunyanglib.cn\/?p=1191"},"modified":"2026-04-08T09:19:44","modified_gmt":"2026-04-08T01:19:44","slug":"%e3%80%90java%e3%80%91java%e8%ae%bf%e9%97%ae%e4%bf%ae%e9%a5%b0%e7%ac%a6%ef%bc%9a%e6%9d%83%e9%99%90%e6%8e%a7%e5%88%b6%e7%9a%84%e6%a0%b8%e5%bf%83%e9%80%bb%e8%be%91","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=1191","title":{"rendered":"\u3010Java\u3011Java\u8bbf\u95ee\u4fee\u9970\u7b26\uff1a\u6743\u9650\u63a7\u5236\u7684\u6838\u5fc3\u903b\u8f91"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5927\u5bb6\u597d\uff0c\u6211\u662f\u4e91\u626c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f5c\u4e3a Java \u5f00\u53d1\u8005\uff0c\u6211\u4eec\u6bcf\u5929\u90fd\u5728\u548c\u8bbf\u95ee\u4fee\u9970\u7b26\u6253\u4ea4\u9053\uff0c\u4f46\u5f88\u591a\u4eba\u5f80\u5f80\u53ea\u505c\u7559\u5728 \u201c\u4f1a\u7528\u201d \u7684\u5c42\u9762\uff0c\u5374\u5ffd\u7565\u4e86\u5176\u80cc\u540e\u7684\u8bbe\u8ba1\u601d\u60f3\u548c\u6838\u5fc3\u4ef7\u503c\u3002\u8bbf\u95ee\u4fee\u9970\u7b26\u662f Java \u9762\u5411\u5bf9\u8c61\u5c01\u88c5\u7279\u6027\u7684\u6838\u5fc3\u5b9e\u73b0\u624b\u6bb5\uff0c\u5408\u7406\u4f7f\u7528\u5b83\uff0c\u80fd\u8ba9\u4ee3\u7801\u7ed3\u6784\u66f4\u6e05\u6670\u3001\u7ef4\u62a4\u6027\u66f4\u5f3a\uff0c\u4e5f\u80fd\u6709\u6548\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u8bbf\u95ee\u51b2\u7a81\u3002\u4eca\u5929\uff0c\u6211\u5c31\u548c\u5927\u5bb6\u4e00\u8d77\u6df1\u5165\u62c6\u89e3 Java \u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u5e95\u5c42\u903b\u8f91\u4e0e\u5b9e\u6218\u6280\u5de7\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u6838\u5fc3\u5b9a\u4f4d\uff1a\u5c01\u88c5\u7684\u57fa\u77f3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\uff0c<strong>\u5c01\u88c5<\/strong>\u662f\u4e09\u5927\u7279\u6027\u4e4b\u4e00\uff0c\u5176\u6838\u5fc3\u601d\u60f3\u662f \u201c\u9690\u85cf\u5185\u90e8\u5b9e\u73b0\uff0c\u66b4\u9732\u5bf9\u5916\u63a5\u53e3\u201d\u3002\u800c\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u6b63\u662f\u5b9e\u73b0\u8fd9\u4e00\u601d\u60f3\u7684\u5173\u952e\u5de5\u5177\u3002\u5b83\u901a\u8fc7\u63a7\u5236\u7c7b\u3001\u65b9\u6cd5\u3001\u53d8\u91cf\u7684\u8bbf\u95ee\u8303\u56f4\uff0c\u5b9e\u73b0\u4e86\u4ee5\u4e0b\u6838\u5fc3\u4ef7\u503c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9690\u85cf\u5b9e\u73b0\u7ec6\u8282<\/strong>\uff1a\u5c06\u7c7b\u7684\u5185\u90e8\u72b6\u6001\u548c\u8f85\u52a9\u65b9\u6cd5\u79c1\u6709\u5316\uff0c\u4ec5\u66b4\u9732\u5fc5\u8981\u7684\u63a5\u53e3\u4f9b\u5916\u90e8\u8c03\u7528\uff0c\u964d\u4f4e\u4ee3\u7801\u8026\u5408\u5ea6\uff1b<\/li>\n\n\n\n<li><strong>\u89c4\u8303\u8bbf\u95ee\u8fb9\u754c<\/strong>\uff1a\u660e\u786e\u4e0d\u540c\u4ee3\u7801\u5355\u5143\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u907f\u514d\u8bef\u64cd\u4f5c\u4fee\u6539\u6838\u5fc3\u6570\u636e\uff0c\u63d0\u5347\u4ee3\u7801\u5b89\u5168\u6027\uff1b<\/li>\n\n\n\n<li><strong>\u907f\u514d\u547d\u540d\u51b2\u7a81<\/strong>\uff1a\u901a\u8fc7\u5305\u8bbf\u95ee\u6743\u9650\uff0c\u9650\u5236\u7c7b\u7684\u4f5c\u7528\u57df\uff0c\u89e3\u51b3\u591a\u6a21\u5757\u4e0b\u7684\u7c7b\u540d\u91cd\u590d\u95ee\u9898\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Java \u63d0\u4f9b\u4e86<strong>\u56db\u79cd\u8bbf\u95ee\u4fee\u9970\u7b26<\/strong>\uff0c\u6309\u6743\u9650\u4ece\u4e25\u683c\u5230\u5bbd\u677e\u4f9d\u6b21\u4e3a\uff1a<code>private<\/code>\uff08\u79c1\u6709\uff09\u3001<strong>\u9ed8\u8ba4<\/strong>\uff08\u5305\u8bbf\u95ee\uff09\u3001<code>protected<\/code>\uff08\u53d7\u4fdd\u62a4\uff09\u3001<code>public<\/code>\uff08\u516c\u5f00\uff09\u3002\u9700\u8981\u7279\u522b\u6ce8\u610f\u7684\u662f\uff1a<strong>\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\u4ec5\u652f\u6301\u9ed8\u8ba4\u548c public \u4e24\u79cd<\/strong>\uff0c\u800c\u65b9\u6cd5\u3001\u6210\u5458\u53d8\u91cf\u53ef\u4f7f\u7528\u5168\u90e8\u56db\u79cd\u4fee\u9970\u7b26\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\uff1a\u5305\u4e0e\u5168\u5c40\u7684\u8fb9\u754c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\u51b3\u5b9a\u4e86\u5b83\u5728\u6574\u4e2a\u9879\u76ee\u4e2d\u7684 \u201c\u53ef\u89c1\u8303\u56f4\u201d\uff0c\u8fd9\u662f\u6211\u4eec\u5b9a\u4e49\u7c7b\u65f6\u9996\u5148\u8981\u660e\u786e\u7684\u89c4\u5219\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\uff08\u5305\u8bbf\u95ee\u6743\u9650\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u7c7b\u4e0d\u6dfb\u52a0\u4efb\u4f55\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u5c31\u5c5e\u4e8e\u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u3002\u8fd9\u79cd\u6743\u9650\u4e0b\uff0c\u7c7b<strong>\u4ec5\u5bf9\u5f53\u524d\u5305\u5185\u7684\u6240\u6709\u7c7b\u53ef\u89c1<\/strong>\uff0c\u8de8\u5305\u7684\u7c7b\u65e0\u6cd5\u5bfc\u5165\u548c\u4f7f\u7528\u5b83\uff0c\u4e5f\u65e0\u6cd5\u7ee7\u627f\u5b83\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u6765\u770b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.base\n\/\/ \u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u7684\u7c7b\uff0c\u4ec5\u540c\u5305\u53ef\u89c1\nclass DefaultClass {\n    public void sayHello() {\n        System.out.println(\"\u6211\u662f\u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u7684\u7c7b\uff0c\u53ea\u6709\u540c\u5305\u80fd\u8bbf\u95ee\u6211\uff01\");\n    }\n}\n\n\/\/ \u540c\u5305\u5185\u7684\u6d4b\u8bd5\u7c7b\uff0c\u53ef\u6b63\u5e38\u8bbf\u95ee\u9ed8\u8ba4\u7c7b\npublic class SamePackageTest {\n    public static void main(String&#91;] args) {\n        DefaultClass demo = new DefaultClass();\n        demo.sayHello(); \/\/ \u8f93\u51fa\uff1a\u6211\u662f\u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u7684\u7c7b\uff0c\u53ea\u6709\u540c\u5305\u80fd\u8bbf\u95ee\u6211\uff01\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u6211\u4eec\u5728\u53e6\u4e00\u4e2a\u5305\uff08\u5982<code>com.yunyang.demo.other<\/code>\uff09\u4e2d\u5c1d\u8bd5\u5bfc\u5165<code>DefaultClass<\/code>\u5e76\u4f7f\u7528\uff0c\u7f16\u8bd1\u5668\u4f1a\u76f4\u63a5\u62a5\u9519\uff1a<code>DefaultClass is not visible in this package<\/code>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. public \u8bbf\u95ee\u6743\u9650<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528<code>public<\/code>\u4fee\u9970\u7684\u7c7b\uff0c\u62e5\u6709<strong>\u5168\u5c40\u8bbf\u95ee\u6743\u9650<\/strong>\u2014\u2014 \u4efb\u4f55\u5305\u7684\u7c7b\u90fd\u53ef\u4ee5\u901a\u8fc7<code>import<\/code>\u5173\u952e\u5b57\u5bfc\u5165\u5e76\u4f7f\u7528\uff0c\u4e5f\u53ef\u4ee5\u7ee7\u627f\u5b83\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f46\u6709\u4e24\u4e2a\u786c\u6027\u89c4\u5219\u5fc5\u987b\u9075\u5b88\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4e00\u4e2a<code>.java<\/code>\u6e90\u6587\u4ef6\u4e2d<strong>\u53ea\u80fd\u6709\u4e00\u4e2a public \u7c7b<\/strong>\uff1b<\/li>\n\n\n\n<li>public \u7c7b\u7684\u7c7b\u540d\u5fc5\u987b\u4e0e<code>.java<\/code>\u6587\u4ef6\u540d\u5b8c\u5168\u4e00\u81f4\uff08\u533a\u5206\u5927\u5c0f\u5199\uff09\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6587\u4ef6\u540d\u5fc5\u987b\u4e3a PublicClass.java\uff08\u4e0epublic\u7c7b\u540d\u4e00\u81f4\uff09\n\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.publics\npublic class PublicClass {\n    public void sayHello() {\n        System.out.println(\"\u6211\u662fpublic\u7c7b\uff0c\u5168\u5c40\u90fd\u80fd\u8bbf\u95ee\u6211\uff01\");\n    }\n}\n\n\/\/ \u8de8\u5305\u6d4b\u8bd5\u7c7b\uff0c\u6240\u5728\u5305\uff1acom.yunyang.demo.test\npackage com.yunyang.demo.test;\n\n\/\/ \u5bfc\u5165public\u7c7b\nimport com.yunyang.demo.publics.PublicClass;\n\npublic class CrossPackageTest {\n    public static void main(String&#91;] args) {\n        PublicClass demo = new PublicClass();\n        demo.sayHello(); \/\/ \u8f93\u51fa\uff1a\u6211\u662fpublic\u7c7b\uff0c\u5168\u5c40\u90fd\u80fd\u8bbf\u95ee\u6211\uff01\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>public<\/code>\u7c7b\u901a\u5e38\u7528\u4e8e\u5b9a\u4e49\u5bf9\u5916\u66b4\u9732\u7684\u6838\u5fc3\u63a5\u53e3\u3001\u5de5\u5177\u7c7b\u3001\u542f\u52a8\u7c7b\u7b49\uff0c\u662f\u9879\u76ee\u6a21\u5757\u95f4\u4ea4\u4e92\u7684\u6838\u5fc3\u8f7d\u4f53\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u6210\u5458\u4e0e\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\uff1a\u56db\u6743\u5206\u7acb\u7684\u5b9e\u6218\u903b\u8f91<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u548c\u65b9\u6cd5\uff0c\u56db\u79cd\u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u6743\u9650\u5dee\u5f02\u662f\u5b66\u4e60\u7684\u91cd\u70b9\u3002\u6211\u4eec\u53ef\u4ee5\u4ece<strong>\u7c7b\u5185\u3001\u540c\u5305\u3001\u8de8\u5305\u5b50\u7c7b\u3001\u5168\u5c40<\/strong>\u56db\u4e2a\u7ef4\u5ea6\u6765\u7406\u89e3\uff0c\u7ed3\u5408\u4ee3\u7801\u793a\u4f8b\u4f1a\u66f4\u76f4\u89c2\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u5b9a\u4e49\u6d4b\u8bd5\u7236\u7c7b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5148\u521b\u5efa\u4e00\u4e2a\u7236\u7c7b\uff0c\u5305\u542b\u56db\u79cd\u4fee\u9970\u7b26\u7684\u6210\u5458\u53d8\u91cf\u548c\u65b9\u6cd5\uff0c\u4f5c\u4e3a\u540e\u7eed\u6d4b\u8bd5\u7684\u57fa\u7840\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.parent\npackage com.yunyang.demo.parent;\n\npublic class ParentClass {\n    \/\/ 1. private\uff1a\u4ec5\u7c7b\u5185\u53ef\u89c1\n    private String privateField = \"\u79c1\u6709\u53d8\u91cf\";\n    private void privateMethod() {\n        System.out.println(\"\u79c1\u6709\u65b9\u6cd5\uff1a\" + privateField);\n    }\n\n    \/\/ 2. \u9ed8\u8ba4\uff1a\u540c\u5305\u53ef\u89c1\n    String defaultField = \"\u9ed8\u8ba4\u53d8\u91cf\";\n    void defaultMethod() {\n        System.out.println(\"\u9ed8\u8ba4\u65b9\u6cd5\uff1a\" + defaultField);\n    }\n\n    \/\/ 3. protected\uff1a\u540c\u5305\u53ef\u89c1\uff0c\u8de8\u5305\u5b50\u7c7b\u53ef\u89c1\n    protected String protectedField = \"\u53d7\u4fdd\u62a4\u53d8\u91cf\";\n    protected void protectedMethod() {\n        System.out.println(\"\u53d7\u4fdd\u62a4\u65b9\u6cd5\uff1a\" + protectedField);\n    }\n\n    \/\/ 4. public\uff1a\u5168\u5c40\u53ef\u89c1\n    public String publicField = \"\u516c\u5f00\u53d8\u91cf\";\n    public void publicMethod() {\n        System.out.println(\"\u516c\u5f00\u65b9\u6cd5\uff1a\" + publicField);\n    }\n\n    \/\/ \u7c7b\u5185\u7edf\u4e00\u8c03\u7528\u6d4b\u8bd5\n    public void innerCallTest() {\n        \/\/ \u7c7b\u5185\u53ef\u8bbf\u95ee\u6240\u6709\u6210\u5458\/\u65b9\u6cd5\n        privateMethod();\n        defaultMethod();\n        protectedMethod();\n        publicMethod();\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u540c\u5305\u975e\u5b50\u7c7b\u8bbf\u95ee\u6d4b\u8bd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u7236\u7c7b\u6240\u5728\u7684\u5305\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u975e\u5b50\u7c7b\u7684\u6d4b\u8bd5\u7c7b\uff0c\u9a8c\u8bc1\u8bbf\u95ee\u6743\u9650\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.parent\npackage com.yunyang.demo.parent;\n\npublic class SamePackageNonSubTest {\n    public static void main(String&#91;] args) {\n        ParentClass parent = new ParentClass();\n\n        \/\/ \u53ef\u8bbf\u95ee\uff1a\u9ed8\u8ba4\u3001protected\u3001public\n        parent.defaultMethod();\n        parent.protectedMethod();\n        parent.publicMethod();\n\n        \/\/ \u7f16\u8bd1\u62a5\u9519\uff1aprivate\u4ec5\u7c7b\u5185\u53ef\u8bbf\u95ee\n        \/\/ parent.privateMethod();\n\n        \/\/ \u53ef\u8bbf\u95ee\u540c\u5305\u53d8\u91cf\n        System.out.println(parent.defaultField + \" | \" + parent.protectedField + \" | \" + parent.publicField);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u8bba\uff1a\u540c\u5305\u975e\u5b50\u7c7b\u4e2d\uff0c\u65e0\u6cd5\u8bbf\u95ee<code>private<\/code>\u4fee\u9970\u7684\u6210\u5458\u548c\u65b9\u6cd5\uff0c\u5176\u4f59\u6743\u9650\u5747\u5f00\u653e\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u8de8\u5305\u5b50\u7c7b\u8bbf\u95ee\u6d4b\u8bd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u521b\u5efa\u4e00\u4e2a\u8de8\u5305\u7684\u5b50\u7c7b\uff0c\u7ee7\u627f\u7236\u7c7b\uff0c\u9a8c\u8bc1\u5b50\u7c7b\u7684\u8bbf\u95ee\u6743\u9650\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.child\npackage com.yunyang.demo.child;\n\nimport com.yunyang.demo.parent.ParentClass;\n\n\/\/ \u8de8\u5305\u5b50\u7c7b\npublic class ChildClass extends ParentClass {\n    public void childCallTest() {\n        \/\/ \u53ef\u8bbf\u95ee\uff1aprotected\u3001public\uff08\u5b50\u7c7b\u7ee7\u627f\u6743\u9650\uff09\n        protectedMethod();\n        publicMethod();\n\n        \/\/ \u7f16\u8bd1\u62a5\u9519\uff1a\u9ed8\u8ba4\u6743\u9650\u8de8\u5305\u4e0d\u53ef\u89c1\n        \/\/ defaultMethod();\n\n        \/\/ \u7f16\u8bd1\u62a5\u9519\uff1aprivate\u65e0\u8bbf\u95ee\u6743\u9650\n        \/\/ privateMethod();\n\n        \/\/ \u53ef\u8bbf\u95ee\u7ee7\u627f\u7684\u53d8\u91cf\n        System.out.println(protectedField + \" | \" + publicField);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u8bba\uff1a\u8de8\u5305\u5b50\u7c7b\u4e2d\uff0c\u53ef\u8bbf\u95ee<code>protected<\/code>\u548c<code>public<\/code>\u4fee\u9970\u7684\u6210\u5458\u548c\u65b9\u6cd5\uff0c<code>private<\/code>\u548c\u9ed8\u8ba4\u6743\u9650\u5747\u65e0\u6cd5\u8bbf\u95ee\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u8de8\u5305\u975e\u5b50\u7c7b\u8bbf\u95ee\u6d4b\u8bd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u7236\u7c7b\u7684\u4e0d\u540c\u5305\u4e2d\uff0c\u521b\u5efa\u4e00\u4e2a\u975e\u5b50\u7c7b\u7684\u6d4b\u8bd5\u7c7b\uff0c\u9a8c\u8bc1\u5168\u5c40\u8bbf\u95ee\u6743\u9650\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u6240\u5728\u5305\uff1acom.yunyang.demo.other\npackage com.yunyang.demo.other;\n\nimport com.yunyang.demo.parent.ParentClass;\n\npublic class CrossPackageNonSubTest {\n    public static void main(String&#91;] args) {\n        ParentClass parent = new ParentClass();\n\n        \/\/ \u4ec5\u53ef\u8bbf\u95ee\uff1apublic\n        parent.publicMethod();\n        System.out.println(parent.publicField);\n\n        \/\/ \u7f16\u8bd1\u62a5\u9519\uff1a\u9ed8\u8ba4\u3001protected\u8de8\u5305\u975e\u5b50\u7c7b\u4e0d\u53ef\u89c1\n        \/\/ parent.defaultMethod();\n        \/\/ parent.protectedMethod();\n\n        \/\/ \u7f16\u8bd1\u62a5\u9519\uff1aprivate\u65e0\u8bbf\u95ee\u6743\u9650\n        \/\/ parent.privateMethod();\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u6743\u9650\u8303\u56f4\u603b\u7ed3\u8868<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3a\u4e86\u65b9\u4fbf\u8bb0\u5fc6\uff0c\u6211\u6574\u7406\u4e86\u4e00\u5f20\u6743\u9650\u5bf9\u6bd4\u8868\uff0c\u8fd9\u5f20\u8868\u662f\u7406\u89e3\u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u6838\u5fc3\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u4fee\u9970\u7b26<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u7c7b\u5185\u53ef\u89c1<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u540c\u5305\u53ef\u89c1<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u8de8\u5305\u5b50\u7c7b\u53ef\u89c1<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5168\u5c40\u53ef\u89c1<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">private<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u9ed8\u8ba4<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">protected<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u274c<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">public<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u2705<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u5b9e\u6218\u907f\u5751\u6307\u5357\uff1a\u5408\u7406\u4f7f\u7528\u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u6838\u5fc3\u539f\u5219<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u4f7f\u7528\u4e0d\u662f\u968f\u610f\u7684\uff0c\u9700\u8981\u9075\u5faa\u4ee5\u4e0b\u539f\u5219\uff0c\u624d\u80fd\u53d1\u6325\u5176\u6700\u5927\u4ef7\u503c\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6210\u5458\u53d8\u91cf\uff1a\u4f18\u5148\u4f7f\u7528 private\uff0c\u901a\u8fc7 getter\/setter \u66b4\u9732<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u662f\u5c01\u88c5\u7684\u6838\u5fc3\u539f\u5219\u3002\u5c06\u6210\u5458\u53d8\u91cf\u79c1\u6709\u5316\uff0c\u907f\u514d\u5916\u90e8\u76f4\u63a5\u4fee\u6539\u5185\u90e8\u72b6\u6001\uff0c\u901a\u8fc7<code>public<\/code>\u7684 getter\/setter \u65b9\u6cd5\u63a7\u5236\u8bbf\u95ee\u548c\u4fee\u6539\u903b\u8f91\uff0c\u65e2\u80fd\u4fdd\u8bc1\u6570\u636e\u5b89\u5168\uff0c\u53c8\u80fd\u5728\u65b9\u6cd5\u4e2d\u589e\u52a0\u6821\u9a8c\u903b\u8f91\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class User {\n    \/\/ \u79c1\u6709\u53d8\u91cf\uff0c\u9690\u85cf\u5185\u90e8\u72b6\u6001\n    private String username;\n    private int age;\n\n    \/\/ \u516c\u5f00\u7684getter\u65b9\u6cd5\uff0c\u63d0\u4f9b\u8bfb\u53d6\u6743\u9650\n    public String getUsername() {\n        return username;\n    }\n\n    \/\/ \u516c\u5f00\u7684setter\u65b9\u6cd5\uff0c\u63d0\u4f9b\u4fee\u6539\u6743\u9650\u5e76\u589e\u52a0\u6821\u9a8c\n    public void setAge(int age) {\n        if (age &gt; 0 &amp;&amp; age &lt; 120) {\n            this.age = age;\n        } else {\n            throw new IllegalArgumentException(\"\u5e74\u9f84\u4e0d\u5408\u6cd5\uff01\");\n        }\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u65b9\u6cd5\uff1a\u6309\u804c\u8d23\u5212\u5206\u6743\u9650<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ec5\u7c7b\u5185\u4f7f\u7528\u7684\u8f85\u52a9\u65b9\u6cd5\uff1a\u7528<code>private<\/code>\uff0c\u907f\u514d\u5bf9\u5916\u66b4\u9732\uff1b<\/li>\n\n\n\n<li>\u540c\u5305\u5185\u590d\u7528\u7684\u65b9\u6cd5\uff1a\u7528\u9ed8\u8ba4\u6743\u9650\uff0c\u51cf\u5c11\u8de8\u5305\u4f9d\u8d56\uff1b<\/li>\n\n\n\n<li>\u4f9b\u5b50\u7c7b\u7ee7\u627f\u6269\u5c55\u7684\u65b9\u6cd5\uff1a\u7528<code>protected<\/code>\uff0c\u660e\u786e\u7ee7\u627f\u8fb9\u754c\uff1b<\/li>\n\n\n\n<li>\u5bf9\u5916\u66b4\u9732\u7684\u6838\u5fc3\u63a5\u53e3\uff1a\u7528<code>public<\/code>\uff0c\u662f\u6a21\u5757\u4ea4\u4e92\u7684\u5165\u53e3\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u7c7b\uff1a\u660e\u786e\u4f5c\u7528\u57df\uff0c\u907f\u514d\u8fc7\u5ea6\u66b4\u9732<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4ec5\u5f53\u524d\u5305\u4f7f\u7528\u7684\u8f85\u52a9\u7c7b\u3001\u5185\u90e8\u7c7b\uff1a\u7528\u9ed8\u8ba4\u6743\u9650\uff0c\u964d\u4f4e\u5168\u5c40\u547d\u540d\u538b\u529b\uff1b<\/li>\n\n\n\n<li>\u5bf9\u5916\u63d0\u4f9b\u6838\u5fc3\u529f\u80fd\u7684\u5de5\u5177\u7c7b\u3001\u63a5\u53e3\u7c7b\uff1a\u7528<code>public<\/code>\uff0c\u662f\u6a21\u5757\u95f4\u4ea4\u4e92\u7684\u8f7d\u4f53\uff1b<\/li>\n\n\n\n<li>\u907f\u514d\u5c06\u6838\u5fc3\u4e1a\u52a1\u7c7b\u8bbe\u4e3a<code>public<\/code>\uff0c\u9664\u975e\u5fc5\u987b\u5bf9\u5916\u66b4\u9732\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u907f\u514d\u6ee5\u7528\u9ed8\u8ba4\u6743\u9650<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9ed8\u8ba4\u8bbf\u95ee\u6743\u9650\u7684\u7c7b\u3001\u6210\u5458\uff0c\u5728\u9879\u76ee\u8fed\u4ee3\u4e2d\u5bb9\u6613\u88ab\u8bef\u8de8\u5305\u8bbf\u95ee\uff0c\u5bfc\u81f4\u4ee3\u7801\u8026\u5408\u548c\u7ef4\u62a4\u95ee\u9898\u3002\u660e\u786e\u7684\u6743\u9650\u5b9a\u4e49\uff08<code>private<\/code>\/<code>protected<\/code>\/<code>public<\/code>\uff09\u80fd\u8ba9\u4ee3\u7801\u7ed3\u6784\u66f4\u6e05\u6670\uff0c\u964d\u4f4e\u540e\u671f\u7ef4\u62a4\u6210\u672c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Java \u8bbf\u95ee\u4fee\u9970\u7b26\u7684\u672c\u8d28\uff0c\u662f<strong>\u6743\u9650\u63a7\u5236\u7684\u827a\u672f<\/strong>\uff0c\u5176\u6838\u5fc3\u662f\u670d\u52a1\u4e8e\u5c01\u88c5\u7279\u6027\u3002\u6211\u4eec\u4e0d\u4ec5\u8981\u8bb0\u4f4f\u56db\u79cd\u4fee\u9970\u7b26\u7684\u6743\u9650\u8303\u56f4\uff0c\u66f4\u8981\u7406\u89e3\u5176\u80cc\u540e\u7684\u8bbe\u8ba1\u601d\u60f3 \u2014\u2014 \u9690\u85cf\u7ec6\u8282\u3001\u89c4\u8303\u8fb9\u754c\u3001\u964d\u4f4e\u8026\u5408\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u9075\u5faa \u201c\u6700\u5c0f\u6743\u9650\u539f\u5219\u201d\uff1a\u80fd\u4e0d\u66b4\u9732\u7684\u5c31\u4e0d\u66b4\u9732\uff0c\u80fd\u7f29\u5c0f\u8303\u56f4\u7684\u5c31\u7f29\u5c0f\u8303\u56f4\uff0c\u8ba9\u4ee3\u7801\u65e2\u5b89\u5168\u53c8\u6613\u7ef4\u62a4\u3002\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u5927\u5bb6\u5f7b\u5e95\u5403\u900f\u8bbf\u95ee\u4fee\u9970\u7b26\uff0c\u5199\u51fa\u66f4\u4f18\u96c5\u7684 Java \u4ee3\u7801\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u6211\u662f\u4e91\u626c\u3002 \u4f5c\u4e3a Java \u5f00\u53d1\u8005\uff0c\u6211\u4eec\u6bcf\u5929\u90fd\u5728\u548c\u8bbf\u95ee\u4fee\u9970\u7b26\u6253\u4ea4\u9053\uff0c\u4f46\u5f88\u591a\u4eba\u5f80\u5f80\u53ea\u505c\u7559\u5728 \u201c\u4f1a\u7528\u201d \u7684<\/p>\n<div 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fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":1317,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-1191","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java","tag-java"],"_links":{"self":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1191","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1191"}],"version-history":[{"count":2,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1191\/revisions"}],"predecessor-version":[{"id":1193,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1191\/revisions\/1193"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/1317"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}