17.商品价格查询

package cn.jbit.loops1;

import java.util.Scanner;

public class PriceLookup {

    /*
     * 商品价格查询
     */
    public static void main(String[] args) {
        String name = "";        //商品名称
        double price = 0.0;        //商品价格
        int goodsNo = 0;        //商品编号
        System.out.println("MyShopping管理系统  > 购物结算\n");
        //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("*******************************************");
        
        Scanner input = new Scanner(System.in);
        String answer = "y";    //标识是否继续
        
        while("y".equals(answer)){
            System.out.print("请输入商品编号：");
            goodsNo = input.nextInt();
            switch(goodsNo){
            case 1:
                name = "T 恤";
                price = 245.0;
                break;
            case 2:
                name = "网球鞋";
                price = 570.0;
                break;
            case 3:
                name = "网球拍";
                price = 320.0;
                break;
            }
            System.out.println(name+ "\t" + "￥" + price +"\n");
            System.out.print("是否继续（y/n）");
            answer = input.next();
        }
        System.out.println("程序结束！");
    }
}