latebindingdemo.java

java编程代码

/**
 Demonstrates late binding.
*/
public class LateBindingDemo
{
    public static void main(String[] args)
    {
        Sale simple = new Sale("floor mat", 10.00);//One item at $10.00.
        DiscountSale discount = new DiscountSale("floor mat", 11.00, 10);
                                 //One item at $11.00 with a 10% discount.
        System.out.println(simple);
        System.out.println(discount);

        if (discount.lessThan(simple))
            System.out.println("Discounted item is cheaper.");
        else
            System.out.println("Discounted item is not cheaper.");

        Sale regularPrice = new Sale("cup holder", 9.90);//One item at $9.90.
        DiscountSale specialPrice = new DiscountSale("cup holder", 11.00, 10);
                                 //One item at $11.00 with a 10% discount.
        System.out.println(regularPrice);
        System.out.println(specialPrice);

        if (specialPrice.equalDeals(regularPrice))
            System.out.println("Deals are equal.");
        else
            System.out.println("Deals are not equal.");
    }
}