overriddendemo1.java

java程序设计与编程的利用与实现 java程序设计与编程的利用与实现

class A{
void display(){
	  System.out.println("A's method display() called!");
}
void print(){
	  System.out.println("A's method print() called!");
}
}
class B extends A{
void display(){
	  System.out.println("B's method display() called!");
}
}
public class OverRiddenDemo1{
public static void main(String args[]){
	   A a1=new A();
	   a1.display();
	   a1.print();
	   A a2=new B();
	   a2.display();
	   a2.print();
}
}