{"id":1216,"date":"2026-04-14T17:01:24","date_gmt":"2026-04-14T09:01:24","guid":{"rendered":"https:\/\/yunyanglib.cn\/?p=1216"},"modified":"2026-04-14T17:01:25","modified_gmt":"2026-04-14T09:01:25","slug":"%e3%80%90java%e3%80%91%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3this%e5%92%8csuper%e5%85%b3%e9%94%ae%e5%ad%97%ef%bc%9a%e4%bb%8e%e5%8e%9f%e7%90%86%e5%88%b0%e5%ae%9e%e6%88%98%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/yunyanglib.cn\/?p=1216","title":{"rendered":"\u3010Java\u3011\u6df1\u5165\u7406\u89e3this\u548csuper\u5173\u952e\u5b57\uff1a\u4ece\u539f\u7406\u5230\u5b9e\u6218\u5e94\u7528"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u5728 Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\uff0cthis \u548c super \u5173\u952e\u5b57\u662f\u8fde\u63a5\u7c7b\u4e0e\u5bf9\u8c61\u3001\u7236\u7c7b\u4e0e\u5b50\u7c7b\u7684\u6838\u5fc3\u6865\u6881\u3002\u65e0\u8bba\u662f\u533a\u5206\u53d8\u91cf\u4f5c\u7528\u57df\u3001\u590d\u7528\u6784\u9020\u903b\u8f91\uff0c\u8fd8\u662f\u5b9e\u73b0\u7ee7\u627f\u4f53\u7cfb\u4e2d\u7684\u65b9\u6cd5\u8c03\u7528\uff0c\u8fd9\u4e24\u4e2a\u5173\u952e\u5b57\u90fd\u626e\u6f14\u7740\u4e0d\u53ef\u66ff\u4ee3\u7684\u89d2\u8272\u3002\u672c\u6587\u5c06\u7ed3\u5408\u5b9e\u6218\u4ee3\u7801\uff0c\u8be6\u7ec6\u62c6\u89e3\u5b83\u4eec\u7684\u6838\u5fc3\u7528\u6cd5\u3001\u5e95\u5c42\u539f\u7406\u53ca\u907f\u5751\u6307\u5357\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001this \u5173\u952e\u5b57\u8be6\u89e3\uff1a\u6307\u5411\u5f53\u524d\u5bf9\u8c61\u7684\u5f15\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">this \u5173\u952e\u5b57\u672c\u8d28\u662f\u5f53\u524d\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u4ec5\u80fd\u5728\u975e\u9759\u6001\u65b9\u6cd5\u548c\u6784\u9020\u5668\u4e2d\u4f7f\u7528\uff0c\u6838\u5fc3\u4f5c\u7528\u96c6\u4e2d\u5728\u4ee5\u4e0b 6 \u4e2a\u573a\u666f\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u533a\u5206\u6210\u5458\u53d8\u91cf\u4e0e\u5c40\u90e8\u53d8\u91cf\uff08\u6700\u5e38\u7528\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u65b9\u6cd5\u53c2\u6570\u6216\u5c40\u90e8\u53d8\u91cf\u4e0e\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u540c\u540d\u65f6\uff0cthis \u53ef\u660e\u786e\u6307\u5b9a\u8bbf\u95ee\u6210\u5458\u53d8\u91cf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class User {\n    private String name;\n    private int age;\n\n    \/\/ \u6784\u9020\u65b9\u6cd5\u4e2d\u533a\u5206\u540c\u540d\u53d8\u91cf\n    public User(String name, int age) {\n        this.name = name; \/\/ this.name \u6307\u4ee3\u6210\u5458\u53d8\u91cf\n        this.age = age;  \/\/ \u5c40\u90e8\u53d8\u91cfage\u8d4b\u503c\u7ed9\u6210\u5458\u53d8\u91cf\n    }\n\n    \/\/ \u666e\u901a\u65b9\u6cd5\u4e2d\u533a\u5206\u540c\u540d\u53d8\u91cf\n    public void updateName(String name) {\n        System.out.println(\"\u539f\u540d\u79f0\uff1a\" + this.name);\n        this.name = name; \/\/ \u66f4\u65b0\u6210\u5458\u53d8\u91cf\u503c\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u8c03\u7528\u672c\u7c7b\u7684\u5176\u4ed6\u6784\u9020\u65b9\u6cd5\uff08\u6784\u9020\u5668\u91cd\u8f7d\u590d\u7528\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7<code>this(\u53c2\u6570\u5217\u8868)<\/code>\u53ef\u8c03\u7528\u672c\u7c7b\u5176\u4ed6\u6784\u9020\u5668\uff0c\u9700\u6ce8\u610f<strong>\u5fc5\u987b\u4f5c\u4e3a\u6784\u9020\u65b9\u6cd5\u7684\u7b2c\u4e00\u6761\u8bed\u53e5<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Person {\n    private String name;\n    private int age;\n\n    \/\/ \u65e0\u53c2\u6784\u9020\u5668\uff1a\u8c03\u7528\u4e24\u53c2\u6784\u9020\u5668\u8bbe\u7f6e\u9ed8\u8ba4\u503c\n    public Person() {\n        this(\"\u65e0\u540d\u6c0f\", 18); \/\/ \u5fc5\u987b\u4f4d\u4e8e\u7b2c\u4e00\u884c\n        System.out.println(\"\u65e0\u53c2\u6784\u9020\u5668\u6267\u884c\");\n    }\n\n    \/\/ \u5355\u53c2\u6784\u9020\u5668\uff1a\u8c03\u7528\u4e24\u53c2\u6784\u9020\u5668\u8bbe\u7f6e\u9ed8\u8ba4\u5e74\u9f84\n    public Person(String name) {\n        this(name, 18); \/\/ \u590d\u7528\u521d\u59cb\u5316\u903b\u8f91\n    }\n\n    \/\/ \u4e3b\u6784\u9020\u5668\uff1a\u7edf\u4e00\u521d\u59cb\u5316\u903b\u8f91\n    public Person(String name, int age) {\n        this.name = name;\n        this.age = age;\n    }\n}\n\/\/ \u6d4b\u8bd5\uff1anew Person() \u8f93\u51fa\u987a\u5e8f\uff1a\n\/\/ \uff08\u5148\u6267\u884c\u88ab\u8c03\u7528\u7684\u4e24\u53c2\u6784\u9020\u5668\uff0c\u518d\u6267\u884c\u65e0\u53c2\u6784\u9020\u5668\u5269\u4f59\u903b\u8f91\uff09\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u8c03\u7528\u672c\u7c7b\u7684\u666e\u901a\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u663e\u5f0f\u4f7f\u7528<code>this.\u65b9\u6cd5\u540d()<\/code>\u8c03\u7528\u5f53\u524d\u7c7b\u65b9\u6cd5\uff08\u901a\u5e38\u53ef\u7701\u7565 this\uff0c\u4f46\u590d\u6742\u573a\u666f\u80fd\u63d0\u5347\u53ef\u8bfb\u6027\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Calculator {\n    public int add(int a, int b) {\n        return a + b;\n    }\n\n    public void printResult(int a, int b) {\n        int result = this.add(a, b); \/\/ \u7b49\u4ef7\u4e8e add(a, b)\n        System.out.println(\"\u8ba1\u7b97\u7ed3\u679c\uff1a\" + result);\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c06\u5f53\u524d\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u5e38\u7528\u4e8e\u56de\u8c03\u673a\u5236\u6216\u5bf9\u8c61\u4ea4\u4e92\u573a\u666f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Order {\n    private String orderId;\n\n    public void submitOrder() {\n        \/\/ \u5c06\u5f53\u524d\u8ba2\u5355\u5bf9\u8c61\u4f20\u9012\u7ed9\u652f\u4ed8\u670d\u52a1\n        PaymentService.processPayment(this);\n    }\n\n    \/\/ getter\/setter \u7565\n}\n\nclass PaymentService {\n    public static void processPayment(Order order) {\n        System.out.println(\"\u5904\u7406\u8ba2\u5355\u652f\u4ed8\uff1a\" + order.getOrderId());\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u4f5c\u4e3a\u6784\u9020\u65b9\u6cd5\u7684\u53c2\u6570\u4f20\u9012<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u6784\u9020\u5668\u4e2d\u4f20\u9012\u5f53\u524d\u5bf9\u8c61\uff0c\u9002\u7528\u4e8e\u4f9d\u8d56\u5f53\u524d\u5b9e\u4f8b\u7684\u521d\u59cb\u5316\u573a\u666f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Student {\n    private String name;\n    private StudentCard card;\n\n    \/\/ \u6784\u9020\u5668\u4e2d\u4f20\u9012this\u7ed9\u5176\u4ed6\u5bf9\u8c61\n    public Student(String name) {\n        this.name = name;\n        this.card = new StudentCard(this); \/\/ \u5c06\u5f53\u524dStudent\u5b9e\u4f8b\u4f20\u9012\u7ed9StudentCard\n    }\n\n    public String getName() { return name; }\n}\n\nclass StudentCard {\n    private Student owner;\n\n    public StudentCard(Student owner) {\n        this.owner = owner;\n        System.out.println(\"\u4e3a\u5b66\u751f\uff1a\" + owner.getName() + \" \u521b\u5efa\u6821\u56ed\u5361\");\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u4f5c\u4e3a\u65b9\u6cd5\u8fd4\u56de\u503c\uff08\u5b9e\u73b0\u94fe\u5f0f\u8c03\u7528\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd4\u56de\u5f53\u524d\u5bf9\u8c61\u5f15\u7528\uff0c\u652f\u6301\u65b9\u6cd5\u94fe\u5f0f\u8c03\u7528\uff0c\u5e38\u89c1\u4e8e Builder \u6a21\u5f0f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class UserBuilder {\n    private String name;\n    private int age;\n\n    \/\/ \u8fd4\u56dethis\u5b9e\u73b0\u94fe\u5f0f\u8c03\u7528\n    public UserBuilder setName(String name) {\n        this.name = name;\n        return this; \/\/ \u8fd4\u56de\u5f53\u524d\u5bf9\u8c61\n    }\n\n    public UserBuilder setAge(int age) {\n        this.age = age;\n        return this;\n    }\n\n    public User build() {\n        return new User(name, age);\n    }\n}\n\n\/\/ \u4f7f\u7528\u793a\u4f8b\uff1a\u94fe\u5f0f\u8c03\u7528\u7b80\u6d01\u4f18\u96c5\nUser user = new UserBuilder()\n    .setName(\"\u4e91\u626c\")\n    .setAge(28)\n    .build();\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001super \u5173\u952e\u5b57\u8be6\u89e3\uff1a\u8fde\u63a5\u5b50\u7c7b\u4e0e\u7236\u7c7b\u7684\u6865\u6881<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">super \u5173\u952e\u5b57\u7528\u4e8e\u5f15\u7528\u5f53\u524d\u5bf9\u8c61\u7684\u7236\u7c7b\u5b9e\u4f8b\uff0c\u6838\u5fc3\u4f5c\u7528\u662f\u8bbf\u95ee\u7236\u7c7b\u6210\u5458\uff08\u53d8\u91cf\u3001\u65b9\u6cd5\u3001\u6784\u9020\u5668\uff09\uff0c\u89e3\u51b3\u7ee7\u627f\u4f53\u7cfb\u4e2d\u7684\u8bbf\u95ee\u51b2\u7a81\u95ee\u9898\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7<code>super(\u53c2\u6570\u5217\u8868)<\/code>\u663e\u5f0f\u8c03\u7528\u7236\u7c7b\u6784\u9020\u5668\uff0c<strong>\u5fc5\u987b\u4f4d\u4e8e\u5b50\u7c7b\u6784\u9020\u5668\u7b2c\u4e00\u884c<\/strong>\uff08JDK 25 + \u652f\u6301\u7075\u6d3b\u987a\u5e8f\uff0c\u4f46\u517c\u5bb9\u8d77\u89c1\u5efa\u8bae\u9075\u5faa\u4f20\u7edf\u89c4\u8303\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u7236\u7c7b\nclass Animal {\n    private String name;\n    private int age;\n\n    \/\/ \u7236\u7c7b\u5e26\u53c2\u6784\u9020\u5668\n    public Animal(String name, int age) {\n        this.name = name;\n        this.age = age;\n        System.out.println(\"Animal\u6784\u9020\u5668\u6267\u884c\");\n    }\n}\n\n\/\/ \u5b50\u7c7b\nclass Dog extends Animal {\n    private String breed;\n\n    \/\/ \u5b50\u7c7b\u6784\u9020\u5668\uff1a\u8c03\u7528\u7236\u7c7b\u5e26\u53c2\u6784\u9020\u5668\n    public Dog(String name, int age, String breed) {\n        super(name, age); \/\/ \u5fc5\u987b\u5728\u7b2c\u4e00\u884c\uff0c\u521d\u59cb\u5316\u7236\u7c7b\u90e8\u5206\n        this.breed = breed;\n        System.out.println(\"Dog\u6784\u9020\u5668\u6267\u884c\");\n    }\n}\n\n\/\/ \u6d4b\u8bd5\uff1anew Dog(\"Buddy\", 3, \"\u62c9\u5e03\u62c9\u591a\")\n\/\/ \u8f93\u51fa\u987a\u5e8f\uff1aAnimal\u6784\u9020\u5668\u6267\u884c \u2192 Dog\u6784\u9020\u5668\u6267\u884c\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff1a\u82e5\u7236\u7c7b\u65e0\u65e0\u53c2\u6784\u9020\u5668\uff0c\u5b50\u7c7b\u5fc5\u987b\u663e\u5f0f\u8c03\u7528\u7236\u7c7b\u5e26\u53c2\u6784\u9020\u5668\uff0c\u5426\u5219\u7f16\u8bd1\u62a5\u9519\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u8c03\u7528\u7236\u7c7b\u7684\u666e\u901a\u65b9\u6cd5\uff08\u5c24\u5176\u662f\u88ab\u91cd\u5199\u7684\u65b9\u6cd5\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u5b50\u7c7b\u91cd\u5199\u7236\u7c7b\u65b9\u6cd5\u540e\uff0c\u53ef\u901a\u8fc7 super \u8bbf\u95ee\u7236\u7c7b\u7684\u539f\u59cb\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Father {\n    public void sayHello() {\n        System.out.println(\"\u7236\u7c7b\uff1aHello World\");\n    }\n}\n\nclass Son extends Father {\n    @Override\n    public void sayHello() {\n        super.sayHello(); \/\/ \u8c03\u7528\u7236\u7c7b\u7684sayHello\u65b9\u6cd5\n        System.out.println(\"\u5b50\u7c7b\uff1aHello Java\");\n    }\n}\n\n\/\/ \u6d4b\u8bd5\uff1anew Son().sayHello()\n\/\/ \u8f93\u51fa\uff1a\u7236\u7c7b\uff1aHello World \u2192 \u5b50\u7c7b\uff1aHello Java\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u8bbf\u95ee\u7236\u7c7b\u7684\u6210\u5458\u53d8\u91cf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u5b50\u7c7b\u4e0e\u7236\u7c7b\u5b58\u5728\u540c\u540d\u6210\u5458\u53d8\u91cf\u65f6\uff0csuper \u53ef\u76f4\u63a5\u8bbf\u95ee\u7236\u7c7b\u53d8\u91cf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class Parent {\n    protected String msg = \"\u7236\u7c7b\u6d88\u606f\";\n}\n\nclass Child extends Parent {\n    private String msg = \"\u5b50\u7c7b\u6d88\u606f\";\n\n    public void printMsg() {\n        System.out.println(\"\u5b50\u7c7b\u6d88\u606f\uff1a\" + msg);       \/\/ \u8bbf\u95ee\u5b50\u7c7b\u53d8\u91cf\n        System.out.println(\"\u7236\u7c7b\u6d88\u606f\uff1a\" + super.msg); \/\/ \u8bbf\u95ee\u7236\u7c7b\u53d8\u91cf\n    }\n}\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001this \u4e0e super \u6838\u5fc3\u533a\u522b\u5bf9\u6bd4<\/h2>\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\">\u5bf9\u6bd4\u7ef4\u5ea6<\/th><th class=\"has-text-align-left\" data-align=\"left\">this \u5173\u952e\u5b57<\/th><th class=\"has-text-align-left\" data-align=\"left\">super \u5173\u952e\u5b57<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">\u672c\u8d28\u542b\u4e49<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5f53\u524d\u5bf9\u8c61\u7684\u5f15\u7528<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7236\u7c7b\u5bf9\u8c61\u7684\u5f15\u7528<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u9002\u7528\u573a\u666f<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u672c\u7c7b\u5185\u90e8\uff08\u975e\u9759\u6001\u73af\u5883\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5b50\u7c7b\u5185\u90e8\uff08\u7ee7\u627f\u573a\u666f\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6784\u9020\u5668\u8c03\u7528<\/td><td class=\"has-text-align-left\" data-align=\"left\">this (&#8230;) \u8c03\u7528\u672c\u7c7b\u6784\u9020\u5668<\/td><td class=\"has-text-align-left\" data-align=\"left\">super (&#8230;) \u8c03\u7528\u7236\u7c7b\u6784\u9020\u5668<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u65b9\u6cd5\u8c03\u7528<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8bbf\u95ee\u672c\u7c7b\u65b9\u6cd5\uff08\u53ef\u7701\u7565\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8bbf\u95ee\u7236\u7c7b\u65b9\u6cd5\uff08\u91cd\u5199\u540e\u9700\u663e\u5f0f\uff09<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u53d8\u91cf\u8bbf\u95ee<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8bbf\u95ee\u672c\u7c7b\u6210\u5458\u53d8\u91cf<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8bbf\u95ee\u7236\u7c7b\u6210\u5458\u53d8\u91cf<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5171\u5b58\u89c4\u5219<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0d\u80fd\u4e0e super (&#8230;) \u540c\u65f6\u51fa\u73b0\u5728\u6784\u9020\u5668\u7b2c\u4e00\u884c<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0d\u80fd\u4e0e this (&#8230;) \u540c\u65f6\u4f7f\u7528<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u9759\u6001\u73af\u5883<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0d\u53ef\u4f7f\u7528\uff08\u65e0\u5bf9\u8c61\u4e0a\u4e0b\u6587\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0d\u53ef\u4f7f\u7528\uff08\u65e0\u5bf9\u8c61\u4e0a\u4e0b\u6587\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u907f\u5751\u6307\u5357\uff1a\u8fd9\u4e9b\u9519\u8bef\u5343\u4e07\u522b\u72af<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6784\u9020\u5668\u4e2d this (&#8230;) \u548c super (&#8230;) \u4e0d\u80fd\u5171\u5b58<\/strong>\uff1a\u4e24\u8005\u90fd\u8981\u6c42\u4f4d\u4e8e\u6784\u9020\u5668\u7b2c\u4e00\u884c\uff0c\u540c\u65f6\u4f7f\u7528\u4f1a\u7f16\u8bd1\u62a5\u9519\uff1b<\/li>\n\n\n\n<li><strong>\u907f\u514d\u6784\u9020\u5668\u5faa\u73af\u8c03\u7528<\/strong>\uff1a\u5982 A \u6784\u9020\u5668\u8c03\u7528 B\uff0cB \u53c8\u8c03\u7528 A\uff0c\u4f1a\u5bfc\u81f4 StackOverflowError\uff1b<\/li>\n\n\n\n<li><strong>\u9759\u6001\u65b9\u6cd5\u4e2d\u4e0d\u80fd\u4f7f\u7528 this\/super<\/strong>\uff1a\u9759\u6001\u65b9\u6cd5\u5c5e\u4e8e\u7c7b\u7ea7\u522b\u7684\u65b9\u6cd5\uff0c\u65e0\u5bf9\u8c61\u5b9e\u4f8b\uff0c\u4f7f\u7528\u4f1a\u76f4\u63a5\u7f16\u8bd1\u5931\u8d25\uff1b<\/li>\n\n\n\n<li><strong>JDK \u7248\u672c\u517c\u5bb9\u95ee\u9898<\/strong>\uff1aJDK 25 + \u652f\u6301 super (&#8230;) \u4e0d\u5728\u6784\u9020\u5668\u7b2c\u4e00\u884c\uff0c\u4f46\u4f4e\u7248\u672c\u4ecd\u9700\u9075\u5faa\u4f20\u7edf\u89c4\u8303\uff1b<\/li>\n\n\n\n<li><strong>\u4e0d\u8981\u6ee5\u7528 this<\/strong>\uff1a\u666e\u901a\u65b9\u6cd5\u4e2d\u8bbf\u95ee\u672c\u7c7b\u6210\u5458\u65f6\uff0c\u82e5\u65e0\u547d\u540d\u51b2\u7a81\uff0c\u53ef\u7701\u7565 this \u4ee5\u7b80\u5316\u4ee3\u7801\u3002<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">this \u548c super \u5173\u952e\u5b57\u662f Java \u9762\u5411\u5bf9\u8c61\u7279\u6027\u7684\u91cd\u8981\u4f53\u73b0\uff1athis \u805a\u7126\u4e8e\u5f53\u524d\u5bf9\u8c61\u7684\u5185\u90e8\u4ea4\u4e92\uff0c\u89e3\u51b3\u53d8\u91cf\u533a\u5206\u3001\u6784\u9020\u590d\u7528\u7b49\u95ee\u9898\uff1bsuper \u5219\u4e13\u6ce8\u4e8e\u7236\u5b50\u7c7b\u7684\u7ee7\u627f\u534f\u4f5c\uff0c\u786e\u4fdd\u7236\u7c7b\u8d44\u6e90\u7684\u6b63\u786e\u8bbf\u95ee\u548c\u521d\u59cb\u5316\u3002\u7406\u89e3\u5b83\u4eec\u7684\u6838\u5fc3\u533a\u522b\u548c\u4f7f\u7528\u573a\u666f\uff0c\u80fd\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\u3001\u903b\u8f91\u66f4\u6e05\u6670\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5efa\u8bae\u7ed3\u5408\u5b9e\u9645\u5f00\u53d1\u573a\u666f\u591a\u505a\u7ec3\u4e60\uff0c\u6bd4\u5982\u5728\u5b9e\u4f53\u7c7b\u6784\u9020\u5668\u4e2d\u4f7f\u7528 this \u590d\u7528\u903b\u8f91\uff0c\u5728\u5b50\u7c7b\u91cd\u5199\u65b9\u6cd5\u65f6\u7528 super \u4fdd\u7559\u7236\u7c7b\u529f\u80fd\uff0c\u9010\u6b65\u5f62\u6210\u808c\u8089\u8bb0\u5fc6\u3002\u5982\u679c\u9047\u5230\u590d\u6742\u7ee7\u627f\u4f53\u7cfb\u4e2d\u7684\u8bbf\u95ee\u95ee\u9898\uff0c\u53ef\u901a\u8fc7 debug \u8ddf\u8e2a this \u548c super \u7684\u6307\u5411\uff0c\u5feb\u901f\u5b9a\u4f4d\u95ee\u9898\u6839\u6e90\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Java \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\uff0cthis \u548c super \u5173\u952e\u5b57\u662f\u8fde\u63a5\u7c7b\u4e0e\u5bf9\u8c61\u3001\u7236\u7c7b\u4e0e\u5b50\u7c7b\u7684\u6838\u5fc3\u6865\u6881\u3002\u65e0\u8bba\u662f\u533a\u5206<\/p>\n<div class=\"more-link\">\n\t\t\t\t <a href=\"https:\/\/yunyanglib.cn\/?p=1216\" class=\"link-btn theme-btn\"><span>Read More <\/span> <i class=\"fa fa-caret-right\"><\/i><\/a>\n\t\t\t<\/div>\n","protected":false},"author":1,"featured_media":210,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[15],"class_list":["post-1216","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\/1216","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=1216"}],"version-history":[{"count":2,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1216\/revisions"}],"predecessor-version":[{"id":1218,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/posts\/1216\/revisions\/1218"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=\/wp\/v2\/media\/210"}],"wp:attachment":[{"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yunyanglib.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}