if (firstRectangle.getX() <= secondRectangle.getX()) {
            leftRect = firstRectangle;
            rightRect = secondRectangle;
        } else {
            leftRect = secondRectangle;
            rightRect = firstRectangle;
        }

        if (firstRectangle.getY() <= secondRectangle.getY()) {
            upperRect = secondRectangle;
            lowerRect = firstRectangle;

        } else {
            upperRect = firstRectangle;
            lowerRect = secondRectangle;
        }