class TwoDimFig

import java.awt.*;

public abstract class TwoDimFig

implements SizeFunctions, Paintable {

protected Color c;

public abstract String describe();

public abstract double area();

public abstract double volume();

public abstract int nVertices();

public abstract int nFaces();

public void setColor(Color c) { this.c = c; }

public abstract void paint(Graphics g);

}