java实现学生管理系统(集合ArrayList实现)

avatar
作者
筋斗云
阅读量:2

以下是一个简单的Java实现学生管理系统的代码,使用ArrayList集合来存储学生信息。

import java.util.ArrayList; import java.util.Scanner;  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;     } }  public class StudentManagementSystem {     private ArrayList<Student> students;      public StudentManagementSystem() {         students = new ArrayList<>();     }      public void addStudent(Student student) {         students.add(student);     }      public void removeStudent(String id) {         for (int i = 0; i < students.size(); i++) {             if (students.get(i).getId().equals(id)) {                 students.remove(i);                 break;             }         }     }      public void displayStudents() {         for (Student student : students) {             System.out.println("Name: " + student.getName());             System.out.println("Age: " + student.getAge());             System.out.println("ID: " + student.getId());             System.out.println("------------------------");         }     }      public static void main(String[] args) {         StudentManagementSystem system = new StudentManagementSystem();         Scanner scanner = new Scanner(System.in);          while (true) {             System.out.println("1. Add Student");             System.out.println("2. Remove Student");             System.out.println("3. Display Students");             System.out.println("4. Exit");             System.out.print("Enter your choice: ");             int choice = scanner.nextInt();              switch (choice) {                 case 1:                     System.out.print("Enter student name: ");                     String name = scanner.next();                     System.out.print("Enter student age: ");                     int age = scanner.nextInt();                     System.out.print("Enter student ID: ");                     String id = scanner.next();                     Student student = new Student(name, age, id);                     system.addStudent(student);                     break;                 case 2:                     System.out.print("Enter student ID to remove: ");                     String removeId = scanner.next();                     system.removeStudent(removeId);                     break;                 case 3:                     system.displayStudents();                     break;                 case 4:                     System.exit(0);                     break;                 default:                     System.out.println("Invalid choice. Please try again.");                     break;             }         }     } } 

这个程序中,Student类表示学生,包含姓名、年龄和学号属性。StudentManagementSystem类表示学生管理系统,包含一个ArrayList集合来存储学生信息。

main方法中,使用一个无限循环来接受用户的输入操作。用户可以选择添加学生、删除学生、显示学生列表或退出程序。根据用户的选择,调用StudentManagementSystem类中的相应方法来执行相应的操作。

注意:这只是一个简单的示例,没有进行输入验证和错误处理。在实际使用中,可能需要添加更多的功能和逻辑来满足实际需求。

广告一刻

为您即时展示最新活动产品广告消息,让您随时掌握产品活动新动态!