public abstract class GeometricObject {
    private String color = "blue";
    public String getColor() {
	return color;
    }
    public void printArea() {
	System.out.printf("The area of %s is %f\n", this, this.area());
    }
    public void setColor(String color) {
	this.color = color;
    }
    public abstract double area();         // must be overridden
}
// Local Variables:
// c-basic-offset: 4
// compile-command: "javac *.java && java TestQuad"
// End: