package horstmann.ch05_invoice;
/**
   A decorator for an item that applies a discount.
 */
public class DiscountedItem implements LineItem
{
	/**
      Constructs a discounted item.
      @param item the item to be discounted
      @param discount the discount percentage
	 */
	public DiscountedItem(LineItem item, double discount)
	{
		this.item = item;
		this.discount = discount;
	}

	public double getPrice()
	{
		return item.getPrice() * (1 - discount / 100);
	}

	public String toString()
	{
		return item.toString() + " (Discount " + discount
				+ "%)";
	}

	private LineItem item;
	private double discount;
}