用Java代码写一个学生学籍管理系统

下面是一份使用 Java 编写的学生学籍管理系统的代码示例：

import java.util.ArrayList;
import java.util.Scanner;

public class StudentRecordSystem {
  ArrayList<Student> students = new ArrayList<>();

  public static void main(String[] args) {
    StudentRecordSystem system = new StudentRecordSystem();
    system.run();
  }

  private void run() {
    Scanner scanner = new Scanner(System.in);
    while (true) {
      System.out.println("请选择操作：1. 添加学生，2. 查询学生，3. 退出");
      int choice = scanner.nextInt();
      switch (choice) {
        case 1:
          addStudent();
          break;
        case 2:
          queryStudent();
          break;
        case 3:
          System.out.println("系统已退出");
          return;
        default:
          System.out.println("输入错误，请重试");
      }
    }
  }

  private void addStudent() {
    Scanner scanner = new Scanner(System.in);
    System.out.println("请输入学生姓名：");
    String name = scanner.nextLine();
    System.out.println("请输入学生学号：");
    String id = scanner.nextLine();
    Student student = new Student(name, id);
    students.add(student);
    System.out.println("学生已添加：" + student);
  }

  private void queryStudent() {
    Scanner scanner = new Scanner(System.in);
    System.out.println("请输入学生学号：");
    String id = scanner.nextLine();
    for (Student student : students) {
      if (student.getId().equals(id)) {
        System.out.println("学生信息：" + student);
        return;
      }
    }
    System.out.println("未找到学生：" + id);
  }
}

class Student {
  private String name;
  private String id;

  public Student(String name, String id) {
    this.name = name;
    this.id = id;
  }

  public String getName() {
    return name;
  }

  public String getId() {
    return id;
  }

  @Override
  public String toString() {
    return "姓名：" + name + "，学号：" + id;
  }
}

代码的功能是提供一