2024.9.20

public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
StudentManager manager = new StudentManager(5);
while (true) {
System.out.println("");
System.out.println("石家庄铁道大学软件工程系学生信息管理系统");
System.out.println("*");
System.out.println("1、遍历输出学生信息；");
System.out.println("2、新学生信息录入；");
System.out.println("3、删除学生信息；");
System.out.println("4、修改学生信息；");
System.out.println("5、查询学生信息；");
System.out.println("6、退出系统；");
System.out.print("请选择操作：");
int choice = scanner.nextInt();
scanner.nextLine();

        switch (choice) {
            case 1:
                manager.showStudents();
                break;
            case 2:
                System.out.print("请输入学号：");
                String stunumber = scanner.nextLine();
                System.out.print("请输入姓名：");
                String name = scanner.nextLine();
                System.out.print("请输入年龄：");
                int age = scanner.nextInt();
                System.out.print("请输入性别（男输入0，女输入1）：");
                boolean sex = scanner.nextInt() == 1;
                System.out.print("请输入成绩：");
                double score = scanner.nextDouble();
                manager.addStudent(stunumber, name, age, sex, score);
                break;
            case 3:
                System.out.print("请输入要删除的学号：");
                String deleteStunumber = scanner.nextLine();
                manager.deleteStudent(deleteStunumber);
                break;
            case 4:
                System.out.print("请输入要修改的学号：");
                String updateStunumber = scanner.nextLine();
                System.out.print("请输入新姓名：");
                String newName = scanner.nextLine();
                System.out.print("请输入新年龄：");
                int newAge = scanner.nextInt();
                System.out.print("请输入新性别（男输入0，女输入1）：");
                boolean newSex = scanner.nextInt() == 1;
                System.out.print("请输入新成绩：");
                double newScore = scanner.nextDouble();
                manager.updateStudent(updateStunumber, newName, newAge, newSex, newScore);
                break;
            case 5:
                System.out.print("请输入要查询的学号：");
                String selectStunumber = scanner.nextLine();
                manager.selectStudent(selectStunumber);
                break;
            case 6:
                System.out.println("退出系统。");
                scanner.close();
                return;
            default:
                System.out.println("无效选择，请重试。");
        }
    }
}

}