/*
 * Implements a box by recording its lower left and
 * upper right corners, using the Point class.
 * Don Chamberlin, March 2009
 */
class Box {
   Point lowerLeft;
   Point upperRight;
   Box(Point p1, Point p2) {
      lowerLeft = new Point(Math.min(p1.getX(), p2.getX()),
                            Math.min(p1.getY(), p2.getY()));
      upperRight = new Point(Math.max(p1.getX(), p2.getX()),
                             Math.max(p1.getY(), p2.getY()));
   }
   public String toString() {
      return "Box(" + lowerLeft.getX() + "," + lowerLeft.getY() + ")-("
         + upperRight.getX() + "," + upperRight.getY() + ")";
   }
   double perimeter() {
      return 2.0 * Math.abs(upperRight.getX() - lowerLeft.getX())
           + 2.0 * Math.abs(upperRight.getY() - lowerLeft.getY());
   }
   double area() {
      return Math.abs(upperRight.getX() - lowerLeft.getX())
           * Math.abs(upperRight.getY() - lowerLeft.getY());
   }
   boolean contains(Point p) {
      if (p.getX() >= lowerLeft.getX() && p.getX() <= upperRight.getX()
             && p.getY() >= lowerLeft.getY() && p.getY() <= upperRight.getY())
         return true;
      else return false;
   }
   
}  // end of class Box