class Teacher

{

String name;

int age;

public Teacher(String name,int age){

this.name=name;

this.age=age;

}

public void say(){

System.out.print("那个教学水平很高的老师是"+name+"今年"+age+"岁了");

}

}

class Student extends Teacher//继承

{

int score;

public Student(int score,int age,String name){

super (name,age);

this.score=score;

}

}

public class Demo1//主程序

{

public static void main(String[] args){

Student p=new Student(80,20,"飞哥");

p.say();

}

}


注意在调用时方法中是否含有参数。方法中有参数调用也需要有参数

this 当前类里面 对象

super 父类(继承) 可以使用super调用父类属性和方法.