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(4)             case 1: {//1.增加数据                  
                String str = lp.inputData();
                lp.addData(str);
                System.out.println("增加数据成功.");
                timeOut(1);
            }break;
            case 2: {//2.查找数据
                long find = 0;
                System.out.print("请输入你要查找的学生学号:");
                BufferedReader inn =
                    new BufferedReader(
                            new InputStreamReader(System.in));
                String inputLi = inn.readLine();
                find = Integer.valueOf(inputLi).longValue();
                lp.findData(find);
               
                timeOut(2);