GPlanet

public class GPlanet extends GBall {
	public GPlanet(double r) {
		super(r);
		mass = 0;
		radius = 0;
	}
 
	public void setPosition(double x, double y, double z) {
		pos.set(x, y, z);
	}
 
	public void setVector(double x, double y, double z) {
		vec.set(x, y, z);
	}
 
	public double getMass() {
		return mass;
	}
 
	public double getRadius() {
		return radius;
	}
 
	private double mass;	// Kg
	private double radius;	// m
	private G3Dimension pos = new G3Dimension();	// m
	private G3Dimension vec = new G3Dimension();	// m
}