package InterfaceDemo;

/**
 * RectangularCrossSection.java
 *
 *
 * Created: Tue Feb 13 20:05:46 2001
 *
 * @author Stuart C. Shapiro
 *
 * The class of rectangular cross sections.
 */

public class RectangularCrossSection extends CrossSection{
    /** The length of this cross section. */
    private double length,
	/** The width of this cross section. */
	width;

    /**
     * Constructs a rectangular cross section.
     * @param l The length of this rectangular cross section.
     * @param w The width of this rectangular cross section.
     */
    public RectangularCrossSection (double l, double w){
	super();
	length = l;
	width = w;
    }

    /** Returns the area of this rectangular cross section. */
    public double getArea(){
	return length * width;
    }
}// RectangularCrossSection