public abstract class Polygon {
//public class Polygon {
    public enum KindofPolygon {
        POLY_PLAIN,
        POLY_RECT,
        POLY_TRIANG
    };
    protected String name;
    protected float width;
    protected float height;
    protected KindofPolygon polytype;

    public Polygon(String theName, float theWidth, float theHeight) {
        name = theName;
        width = theWidth;
        height = theHeight;
        polytype = KindofPolygon.POLY_PLAIN;
    }

    public KindofPolygon getPolytype() {
        return polytype;
    }

    public void setPolytype(KindofPolygon value) {
        polytype = value;
    }

    public String getName() {
        return name;
    }

//    public float calArea() {
//        return 0;
//    }

    public void printWidthHeight( ) {
        System.out.println("Width = " + width + " Height = " + height);
    }

    public abstract float calArea();

}