testthis1.java

关于对象的用法~ 关于对象的用法~

class Demo{
	double x,y;
	Demo(double x,double y){this.x=x;this.y=y;}
	double ave(){
	return (x+y)/2;
	}
}

class TestThis1 {
  public static void main (String[] args) {
  	Demo s=new Demo(3,4);
  	System.out.println(s.ave());
}
    
}