java 课程设计 管理系统_学生信息管理系统JAVA课程设计

学生信息管理系统是一个常见的课程设计题目，以下是一个简单的JAVA实现的学生信息管理系统：

1. 首先定义一个Student类，包含学生的基本信息，如姓名、学号、年龄等。

public class Student {
    private String name;
    private int age;
    private String id;

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

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public String getId() {
        return id;
    }
}

2. 定义一个StudentManager类，用来管理学生信息，包括增加学生、删除学生、修改学生信息、查询学生信息等操作。

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

public class StudentManager {
    private ArrayList<Student> students;

    public StudentManager() {
        students = new ArrayList<>();
    }

    public void addStudent(Student student) {
        students.add(student);
    }

    public void deleteStudent(String id) {
        for (int i = 0; i < students.size(); i++) {
            if (students.get(i).getId().equals(id)) {
                students.remove(i);
                break;
            }
        }
    }

    public void updateStudent(Student student) {
        for (int i = 0; i < students.size(); i++) {
            if (students.get(i).getId().equals(student.getId())) {
                students.set(i, student);
                break;
            }
        }
    }

    public Student getStudent(String id) {
        for (int i = 0; i < students.size(); i++) {
            if (students.get(i).getId().equals(id)) {
                return students.get(i);
            }
        }
        return null;
    }

    public void listStudents() {
        for (int i = 0; i < students.size(); i++) {
            System.out.println("姓名：" + students.get(i).getName() + "，年龄：" + students.get(i).getAge() + "，学号：" + students.get(i).getId());
        }
    }

    public static void main(String[] args) {
        StudentManager manager = new StudentManager();
        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.println("请选择操作：1.增加学生 2.删除学生 3.修改学生信息 4.查询学生信息 5.列出所有学生 6.退出");
            int choice = scanner.nextInt();
            switch (choice) {
                case 1:
                    System.out.println("请输入学生姓名：");
                    String name = scanner.next();
                    System.out.println("请输入学生年龄：");
                    int age = scanner.nextInt();
                    System.out.println("请输入学生学号：");
                    String id = scanner.next();
                    Student student = new Student(name, age, id);
                    manager.addStudent(student);
                    break;
                case 2:
                    System.out.println("请输入学号：");
                    id = scanner.next();
                    manager.deleteStudent(id);
                    break;
                case 3:
                    System.out.println("请输入学生姓名：");
                    name = scanner.next();
                    System.out.println("请输入学生年龄：");
                    age = scanner.nextInt();
                    System.out.println("请输入学生学号：");
                    id = scanner.next();
                    student = new Student(name, age, id);
                    manager.updateStudent(student);
                    break;
                case 4:
                    System.out.println("请输入学号：");
                    id = scanner.next();
                    student = manager.getStudent(id);
                    if (student != null) {
                        System.out.println("姓名：" + student.getName() + "，年龄：" + student.getAge() + "，学号：" + student.getId());
                    } else {
                        System.out.println("该学生不存在！");
                    }
                    break;
                case 5:
                    manager.listStudents();
                    break;
                case 6:
                    return;
            }
        }
    }
}

这个学生信息管理系统包括了基本的增删改查操作，通过命令行界面实现用户与程序的交互。可以根据具体需求进行修改和扩展。