java实现学生信息

以下是Java实现学生信息管理的示例代码，包括添加、修改、删除和查看功能：

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

public class StudentManagementSystem {
    public static void main(String[] args) {
        ArrayList<Student> studentList = new ArrayList<Student>();
        Scanner scanner = new Scanner(System.in);
        boolean flag = true;
        while (flag) {
            System.out.println("欢迎使用学生信息管理系统，请输入数字选择相应的功能：");
            System.out.println("1.添加学生信息");
            System.out.println("2.修改学生信息");
            System.out.println("3.删除学生信息");
            System.out.println("4.查看所有学生信息");
            System.out.println("5.退出系统");
            int choice = scanner.nextInt();
            switch (choice) {
                case 1:
                    addStudent(studentList, scanner);
                    break;
                case 2:
                    updateStudent(studentList, scanner);
                    break;
                case 3:
                    deleteStudent(studentList, scanner);
                    break;
                case 4:
                    findAllStudent(studentList);
                    break;
                case 5:
                    flag = false;
                    System.out.println("感谢使用学生信息管理系统，再见！");
                    break;
                default:
                    System.out.println("输入有误，请重新输入！");
                    break;
            }
        }
    }

    // 添加学生信息
    public static void addStudent(ArrayList<Student> studentList, Scanner scanner) {
        System.out.println("请输入学生学号：");
        String sid = scanner.next();
        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("请输入学生居住地：");
        String address = scanner.next();
        Student student = new Student(sid, name, age, address);
        studentList.add(student);
        System.out.println("添加成功！");
    }

    // 修改学生信息
    public static void updateStudent(ArrayList<Student> studentList, Scanner scanner) {
        System.out.println("请输入要修改的学生学号：");
        String sid = scanner.next();
        for (int i = 0; i < studentList.size(); i++) {
            Student student = studentList.get(i);
            if (student.getSid().equals(sid)) {
                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("请输入学生居住地：");
                String address = scanner.next();
                student.setName(name);
                student.setAge(age);
                student.setAddress(address);
                System.out.println("修改成功！");
                return;
            }
        }
        System.out.println("未找到该学生信息！");
    }

    // 删除学生信息
    public static void deleteStudent(ArrayList<Student> studentList, Scanner scanner) {
        System.out.println("请输入要删除的学生学号：");
        String sid = scanner.next();
        for (int i = 0; i < studentList.size(); i++) {
            Student student = studentList.get(i);
            if (student.getSid().equals(sid)) {
                studentList.remove(i);
                System.out.println("删除成功！");
                return;
            }
        }
        System.out.println("未找到该学生信息！");
    }

    // 查看所有学生信息
    public static void findAllStudent(ArrayList<Student> studentList) {
        if (studentList.size() == 0) {
            System.out.println("无信息，请先添加信息再查询");
        } else {
            System.out.println("学号\t\t\t\t姓名\t\t年龄\t\t居住地");
            for (int i = 0; i < studentList.size(); i++) {
                Student student = studentList.get(i);
                System.out.println(student.getSid() + "\t" + student.getName() + "\t" + student.getAge() + "岁\t" + student.getAddress());
            }
        }
    }
}

class Student {
    private String sid;
    private String name;
    private int age;
    private String address;

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

    public String getSid() {
        return sid;
    }

    public void setSid(String sid) {
        this.sid = sid;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }
}