/**
*Circle class
*/

public class Circle implements Comparable{
	private static final double PI = 3.14;
	private double radius;

	/**
	*constructor
	*pre: none
	*post: A Circle object created. Radius initialized to 1.
	*/

	public Circle(){
		radius = 1;
	}

	public Circle(double r){
		radius = r;
	}
			public void setRadius(double newRadius){
		radius = newRadius;
	}
	public double getRadius(){
		return radius;
	}
	//....getRadius(), setRadius(), and other Circle class
	//methods

	/**
	*Determines if object c is smaller, the same,
	*or larger than this Circle object.
	*pre: c is a Circle object
	*post: -1 has been returned if c is larger than
	*this Circle, 0 has been returned if they are the same
	*size, and 1 has been returned if c is smaller than this Cirlce.
	*/
	public int compareTo(Object c){
		Circle testCircle = (Circle) c;

		if(radius < testCircle.getRadius()){
			return (-1);
		}
		else if( radius == testCircle.getRadius()){
			return (0);
		}
		else{
			return (1);
		}
	}

	public String toString(){
		String str = "Circle with radius " + radius;
		return str;
	}

public double area(){
double area = 3.14 * radius * radius;
return area;
}



}