/**
   A class that represents a circle.
   
   @author Frank M. Carrano
   @version 4.0
*/
public class Circle implements Circular
{
	private double radius;

	public void setRadius(double newRadius)
	{
		radius = newRadius;
	} // end setRadius

	public double getRadius()
	{
		return radius;
	} // end getRadius

	public double getArea()
	{
		return Math.PI * radius * radius;
	} // end getArea
} // end Circle