//Andrew Ude



public class X181Circleclass
{
    //Set a value for the radius
	private double radius;
	//Set a final value for PI
	final private double PI = 3.14159;

	// Constructor

	public X181Circleclass(double rad)
	{
		radius = rad;

	}

	// Set radius

	public void setRadius(double rad)
	{
		radius = rad;
	}

	//Get radius

	public double getRadius()
	{
		return radius;
	}

// get area
	public double getArea()
	{
		return PI * radius * radius;
	}

// Get Diameter
	public double getDiameter()
	{
		return radius * 2;
	}

// Get Circumference
	public double getCircumference()
	{
		return (2 * radius * PI);
	}

}