inherit.java

来自「java学习理解的素材 可以更好的理解java运行过程」· Java 代码 · 共 41 行

import java.io.*;
class SuperClass
{ 
  int x;
  SuperClass()
  {
  	x=3;
  	System.out.println("in SuperClass : x="+x);
  }
  void dosomething()
  {
  	System.out.println("in SuperClass.doSomething()");
  
  }
	
}
 class SubClass extends SuperClass
 {
 int x;
 SubClass()
 {
 	super();
 	x=5;
 	System.out.println("in SubClass :x="+x);
 
 }
 void doSomething()
   {
 	super.dosomething();
 	System.out.println("in SubClass.doSomething()");
 	System.out.println("super.x="+super.x+" sub.x="/*this.x*/+x);
   }	
 }
 public class Inherit
  {
  	public static void main(String args[])
  	{
  	SubClass subC=new SubClass();
  	subC.doSomething();	
  	}
  }