我写的Java学生成绩管理系统源代码

我写的Java学生成绩管理系统源代码(7)             case 9: {
                System.out.print("\t\t让炜\n"+
                        "\t\t上海电力学院通信工程系\n"+
                        "\t\tQQ:254482170\n");
                timeOut(4);
            }break;
        }while (choice != 0);
        System.out.println("Bye! ^-^");
        System.exit(0);
    }
    public String inputData()//从终端接收数据的方法,返回字符串
    throws IOException,NumberFormatException
    {
            System.out.print("请依次输入 :学号 姓名 性别 成绩\n" +
          "每项数据请用空格隔开:");
            String all = "";
        try{
            BufferedReader in =                               //从终
                new BufferedReader (                          //端接