package Chapter10;

public class ComparableRectangle extends Rectangle
 implements Comparable {
 /** Construct a ComparableRectangle with specified properties */
 public ComparableRectangle(double width, double height) {
 super(width, height);
 }

 /** Implement the compareTo method defined in Comparable */
 public int compareTo(Object o) {
 if (getArea() > ((ComparableRectangle)o).getArea())
 return 1;
 else if (getArea() < ((ComparableRectangle)o).getArea())
 return -1;
 else
 return 0;
 }
}