class Circle

import java.awt.*;

public class Circle extends TwoDimFig {

protected double r;

Circle(double r) { this.r = r; }

public String describe() {

return "a circle with radius " + r; }

public int nVertices() { return 0; }

public int nFaces() { return 1; }

public double area() { return r * r * 3.14159; }

public double volume() { return 0.0; }

public void paint(Graphics g) {

g.setColor(c);

g.drawOval(0, 0, (int)r, (int)r);

}