class Point{
	int x,y;
	public Point(int x,int y){
	  	this.x=x;	  this.y=y;
	}
}
class Circle{
	Point center=new Point(0,0);
	double radius;
	public Circle(int x,int y,double r){
	   	center.x=x; center.y=y;  radius=r;
	}
	public double area(){ return Math.PI*radius*radius; }
}
public class ClassMemberDemo{
	public static void main(String args[]){
	 	 Circle c1=new Circle(100,100,10);
	  	System.out.println("Circle center point:("+c1.center.x+","+c1.center.y+")");
	  	System.out.println("Circle radius="+c1.radius);
	  	System.out.println("Circle area="+c1.area());
	}
}