sphere2

class Sphere extends PaintShape {

    final static double i = 3.14;
    double radius;

    public Sphere(String shapeName, int coverage) {
        super(shapeName, coverage);
    }

    public double area() {

        return 4 * Sphere.i * radius * radius;

    }

    public static void main(String[] args) {

        Sphere sp = new Sphere("sphere",350);
        sp.radius=15;

        System.out.println("computing amount for shape: sphere is " +sp.amount());
        //PaintShape ps=new PaintShape("name",24);

    }

}