testthis3.java

关于对象的用法~ 关于对象的用法~

class Demo{
	int x,y;
	Demo(int a,int b){x=a;y=b;}
	void change(int i,int j){x=i;y=j;this.sort();}
	void sort(){int t;if(x<y){t=x;x=y;y=t;}}
}

public class TestThis3 {
  public static void main(String args[]){
  	Demo d=new Demo(10,20);
  	d.change(30,40);
  	System.out.println(d.x+" "+d.y);	
  }        
}