java004 函数的复写

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函数的复写（override）又称覆盖。重写

//super可以调用父类方法
class person{
  String name;
  int age;
  void shuchu(){
   System.out.pringln(name+age);
  }
 }

---

   class student extends person{
   String address;
   //复写父类方法
   void shuchu(){
   super.shuchu(); //System.out.pringln(name+age);//
   System.out.pringln(address);
   }

   }

---

   class test{
   public static void main(String args[]){
   student s=new student();
   s.name="zhangsan";
   s.age=20;
   s.address="beijing";
   a.shuchu();
   }
  }