overriddendemo1.java

来自「《Java语言程序设计》源代码 很好的JAVA入门的好的代码」· Java 代码 · 共 24 行

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();
}
}