super关键字

来源：互联网发布：程序员培训靠谱编辑：程序博客网时间：2024/04/29 13:04

super关键字表示超（父）类的意思，而this变量代表对象本身的意思。
接着昨天的代码：

//Test1表示父类public class Test1 {            private String name;        private int age;        private String email;        public Test1(String name, int age , String em) {            this.name = name;            this.age = age;            email = em;        }        public Test1(){            this("jack",18,"123@123.com");        }        public void setName(String name) {            this.name = name;        }        public String getName() {            return name;        }        public void setAge(int age) {            this.age = age;        }        public int getAge() {            return age;        }        public void setEmail(String email) {            this.email = email;        }        public String getEmail() {            return email;        }               public Test1 getTest(){            return this;        }        public void getNum(){            int age;            age=this.age+1;            System.out.println(age);        }       }//子类Childpublic class Child extends Test1{        public Child(String name, int age, String email){            super(name,age,email);//调用父类具有相同形参的构造函数        }        public void getNum(){        super.getNum(); //调用父类的方法        }    public static void main(String args[]) {        Child c = new Child("Rose", 19, "123@345.com");        System.out.println("name:" + c.getName() + ",age:" +c.getAge()+",email:"+c.getEmail()+"num:");        c.getNum();    }}

运行结果：
name:Rose,age:19,email:123@345.comnum:
20

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