购物券 | 易学教程

MobileShop


class MobileShop
{
    InnerPurchaseMoney purchaseMoney1;
    InnerPurchaseMoney purchaseMoney2;
    private int mobileAmount;
    MobileShop()
    {
        purchaseMoney1=new InnerPurchaseMoney(20000);
        purchaseMoney2=new InnerPurchaseMoney(10000);
    }
    void setMobileAmount(int m)
    {
        mobileAmount=m;
    }
    int getMobileAmount()
    {
        return mobileAmount;
    }
    class InnerPurchaseMoney
    {
        int moneyValue;
        InnerPurchaseMoney(int m)
        {
            moneyValue=m;
        }
        void buyMoblie()
        {
            if (moneyValue>=20000)
            {
                mobileAmount=mobileAmount-6;
                System.out.println("用价值"+moneyValue+"的内部购物券买了6部手机");
            }
            else if(moneyValue<20000&&moneyValue>=10000)
            {
                 mobileAmount=mobileAmount-3;
                 System.out.println("用价值"+moneyValue+"的内部购物券买了3部手机");
            }
        }
    }
}






mainclass




public class mainclass {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        MobileShop shop=new MobileShop();
        shop.setMobileAmount(30);
        System.out.println("手机专卖店目前有"+shop.getMobileAmount()+"部手机");
        shop.purchaseMoney1.buyMoblie();
        shop.purchaseMoney2.buyMoblie();
        System.out.println("手机专卖店目前有"+shop.getMobileAmount()+"部手机");
        // TODO code application logic here
    }
}