购买商品

标签：put   输入   new   util   网球拍   equal   bre   支付   cas   

import java.util.Scanner;

public class bba {

/**
* @param args
*/
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
//商品清单
System.out.println("*******************************************");
System.out.println("请选择购买的商品编号：");
System.out.println("1.T 恤 2.网球鞋 3.网球拍");
System.out.println("*******************************************");
String re = "y";
double total = 0; //总金额
while(re.equals("y")){
System.out.print("请输入商品编号：");
int no = input.nextInt();
System.out.print("请输入购买数量：");
int count = input.nextInt();
String name = "未知";
double price = 0;
switch(no){
case 1:
name = "T 恤";
price = 125;
break;
case 2:
name = "网球鞋";
price = 245;
break;
case 3:
name = "网球拍";
price = 420;
break;
}
double sum = price*count; //合计
total = total + sum;
System.out.println(name+"\t"+"￥"+price+"\t"+count+"￥"+sum);
System.out.print("是否继续(y/n):");
re = input.next();
}
System.out.println("\n折扣：0.8");
double sz = (total*0.8);
System.out.println("应付金额："+sz);
System.out.print("实付金额：");
double money = input.nextDouble();
while(money<sz){
System.out.print("金额不足，请重新支付：");
money = input.nextDouble();
}
System.out.println("找钱："+(money-sz));

}

}

购买商品

标签：put   输入   new   util   网球拍   equal   bre   支付   cas   

原文地址：https://www.cnblogs.com/aaaaaa6699/p/12510915.html