java2实用教程第四版实验清华大学出版社7-17-2(北华大学吕磊).doc
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2024-06-27
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JAVA 知识
7-1内部购物券
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 buyMobile(){
if(moneyValue>=20000){
mobileAmount=mobileAmount-6;
System.out.println("用价值"+moneyValue+"
的内部购物券买了6部 ");个人收集整理 勿做商业用途
}
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 ");个人收集整理 勿做商业用途
}
}
}
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