Java中如何编写一个简单的学生信息管理系统？

public class Student {
   private String name;
   private int id;
   private String course;
   private int score;
  
   // 构造函数
   public Student(String name, int id, String course, int score) {
       this.name = name;
       this.id = id;
       this.course = course;
       this.score = score;
   }
  
   // 获取学生姓名
   public String getName() {
       return this.name;
   }
  
   // 获取学生学号
   public int getId() {
       return this.id;
   }
  
   // 获取学生课程
   public String getCourse() {
       return this.course;
   }
  
   // 获取学生成绩
   public int getScore() {
       return this.score;
   }
}

import java.util.ArrayList;

public class StudentManagementSystem {
   private ArrayList<Student> students;
  
   // 构造函数
   public StudentManagementSystem() {
       students = new ArrayList<>();
   }
  
   // 添加学生
   public void addStudent(Student student) {
       students.add(student);
   }
  
   // 根据学号查找学生
   public Student findStudentById(int id) {
       for (Student student : students) {
           if (student.getId() == id) {
               return student;
           }
       }
       return null;
   }
  
   // 根据姓名查找学生
   public ArrayList<Student> findStudentByName(String name) {
       ArrayList<Student> result = new ArrayList<>();
       for (Student student : students) {
           if (student.getName().equals(name)) {
               result.add(student);
           }
       }
       return result;
   }
  
   // 根据学号删除学生
   public void deleteStudent(int id) {
       students.removeIf(student -> student.getId() == id);
   }
  
   // 获取所有学生
   public ArrayList<Student> getAllStudents() {
       return students;
   }
}

public class Main {
   public static void main(String[] args) {
       // 创建一个学生信息管理系统
       StudentManagementSystem system = new StudentManagementSystem();
      
       // 添加一些学生
       system.addStudent(new Student("张三", 1001, "Java编程", 80));
       system.addStudent(new Student("李四", 1002, "Python编程", 90));
       system.addStudent(new Student("王五", 1003, "C++编程", 85));
      
       // 查找学生
       Student student1 = system.findStudentById(1002);
       System.out.println(student1.getName() + " " + student1.getCourse() + " " + student1.getScore());
      
       ArrayList<Student> students = system.findStudentByName("张三");
       for (Student student : students) {
           System.out.println(student.getName() + " " + student.getCourse() + " " + student.getScore());
       }
      
       // 删除学生
       system.deleteStudent(1001);
      
       // 获取所有学生
       ArrayList<Student> allStudents = system.getAllStudents();
       for (Student student : allStudents) {
           System.out.println(student.getName() + " " + student.getCourse() + " " + student.getScore());
       }
   }
}