java-入门:模拟网络购物支付系统



1.用户登录后,判断是否是VIP/非VIP用户。如果是VIP用户,则总价=80%总价,非VIP用户,则无打折。

2.输出总价信息,以及总共购买的商品总数量。

3.不需要界面,纯Java编程。

Number.java

public class Number {
	private double amount;

	public double getAmount() {
		return amount;
	}

	public double setAmount(double amount) {
		return this.amount = amount;
	}

	
}

}
 
  

Price.java

public class Price {
	double price=5.0;
	public double vip(double price){
		this.price=price;
		return 0.8*price;
	}
	public double common(double price){
		this.price=price;
		return price;
	}
}
 
  
主函数:

import java.util.*;
public class Zhu {

	public static void main(String[] args) {
		int n;
		String vip;
		Price price=new Price();
		Number number=new Number();
		/* 
		 * 
		 * 
		 * 
		 * */
		Scanner scanner=new Scanner(System.in);
		System.out.print("请问您是否为Vip用户? 是:Y 否:N");
		vip=scanner.next();
		System.out.print("请问您购买的数量:?");
		n=Integer.parseInt(scanner.next());
		number.setAmount(n);
		if(vip.equals("Y")){
			System.out.print("vip总消费:"+(number.getAmount())*price.vip());
			//System.out.print("vip总消费:"+(n*price.vip(10));
		}
		if(vip.equals("N")){
			System.out.print("普通用户总消费:"+number.getAmount()*price.common());
			//System.out.print("普通用户总消费:"+n*price.common(10));
		}
	}

}







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