写一个Java的学生管理系统
时间: 2023-06-16 10:04:08 浏览: 33
好的,以下是一个简单的Java学生管理系统示例:
```java
import java.util.ArrayList;
import java.util.Scanner;
public class StudentManagementSystem {
private ArrayList<Student> students;
public StudentManagementSystem() {
students = new ArrayList<>();
}
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();
System.out.println("请输入学生年龄:");
int age = scanner.nextInt();
Student student = new Student(name, id, age);
students.add(student);
System.out.println("添加成功!");
}
private void removeStudent() {
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要删除的学生学号:");
String id = scanner.nextLine();
for (Student student : students) {
if (student.getId().equals(id)) {
students.remove(student);
System.out.println("删除成功!");
return;
}
}
System.out.println("未找到该学生!");
}
private void displayStudent() {
System.out.println("学生列表如下:");
for (Student student : students) {
System.out.println(student);
}
}
public void start() {
Scanner scanner = new Scanner(System.in);
boolean flag = true;
while (flag) {
System.out.println("\n请选择操作:");
System.out.println("1、添加学生");
System.out.println("2、删除学生");
System.out.println("3、显示学生列表");
System.out.println("4、退出");
int choice = scanner.nextInt();
scanner.nextLine();
switch (choice) {
case 1:
addStudent();
break;
case 2:
removeStudent();
break;
case 3:
displayStudent();
break;
case 4:
flag = false;
break;
default:
System.out.println("无效的选择,请重新输入!");
}
}
}
public static void main(String[] args) {
StudentManagementSystem system = new StudentManagementSystem();
system.start();
}
}
class Student {
private String name;
private String id;
private int age;
public Student(String name, String id, int age) {
this.name = name;
this.id = id;
this.age = age;
}
public String getName() {
return name;
}
public String getId() {
return id;
}
public int getAge() {
return age;
}
@Override
public String toString() {
return "姓名:" + name + ",学号:" + id + ",年龄:" + age;
}
}
```
这个学生管理系统可以实现添加学生,删除学生和显示学生列表等功能。你可以根据自己的需求进行修改和扩展。
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