public class Sphere
{

	private double diameter;

	public Sphere(double diameter)
	{
		setDiameter(diameter);
	}

	public double getDiameter()
	{
		return diameter;
	}

	public void setDiameter(double diameter)
	{
		this.diameter = diameter;
	}

	public double getVolume()
	{
		return Math.PI * (4.0 / 3.0) * Math.pow(diameter, 3);
	}

	public double getArea()
	{
		return Math.PI * 4 * Math.pow(diameter, 2);
	}

	public String toString()
	{
		return
			  "Diameter" + "\t" + getDiameter() + "\n"
			+ "Volume"   + "\t" + getVolume()   + "\n"
			+ "Area"     + "\t" + getArea()     + "\n";
	}

}