0
点赞
收藏
分享

微信扫一扫

do-while循环例题

女侠展昭 2022-03-15 阅读 97

综合练习:家庭收支记账软件

package com.company;

/**
 * @lzx
 * @param args
 */
public class lzx {
    public static void main(String[] args) {
        int num = 0;
        double sum = 12345.66;
        do {
            System.out.println("****************家庭收支记账软件****************");
            System.out.println("                 1 账户余额");
            System.out.println("                 2 登记收入");
            System.out.println("                 3 登记支持");
            System.out.println("                 4 退出");
            System.out.println("                 按键操作(1-4),继续...");
            Scanner scanner = new Scanner(System.in);
            num = scanner.nextInt();

            if (num == 1){
                System.out.println("账户余额为:"+ sum);
            }else if (num == 2){
                System.out.println("请输入收入的金额:");
                double getMoney = scanner.nextDouble();
                sum += getMoney;
            }else if (num == 3){
                System.out.println("请输入支出的金额:");
                double outMoney = scanner.nextDouble();
                sum -= outMoney;
            }
        }while (num != 4);
    }
}

举报

相关推荐

0 条评论