用Java语言写一个会员管理系统

好的，下面是一个简单的会员管理系统的Java代码示例： ``` import java.util.ArrayList; import java.util.Scanner; public class MemberManagementSystem { private ArrayList<Member> members; public MemberManagementSystem() { members = new ArrayList<Member>(); } public void addMember(Member member) { members.add(member); } public void removeMember(Member member) { members.remove(member); } public void displayMembers() { for (Member member : members) { System.out.println(member.toString()); } } public static void main(String[] args) { Scanner scanner = new Scanner(System.in); MemberManagementSystem system = new MemberManagementSystem(); while (true) { System.out.println("请选择操作："); System.out.println("1. 添加会员"); System.out.println("2. 删除会员"); System.out.println("3. 显示所有会员"); System.out.println("4. 退出"); int choice = scanner.nextInt(); switch (choice) { case 1: System.out.println("请输入会员姓名："); String name = scanner.next(); System.out.println("请输入会员年龄："); int age = scanner.nextInt(); Member member = new Member(name, age); system.addMember(member); System.out.println("添加成功！"); break; case 2: System.out.println("请输入要删除的会员姓名："); String nameToRemove = scanner.next(); boolean removed = false; for (Member m : system.members) { if (m.getName().equals(nameToRemove)) { system.removeMember(m); removed = true; System.out.println("删除成功！"); break; } } if (!removed) { System.out.println("未找到该会员！"); } break; case 3: system.displayMembers(); break; case 4: System.out.println("谢谢使用！"); System.exit(0); default: System.out.println("无效的选择！"); break; } } } } class Member { private String name; private int age; public Member(String name, int age) { this.name = name; this.age = age; } public String getName() { return name; } public int getAge() { return age; } public String toString() { return "姓名：" + name + "，年龄：" + age; } } ``` 这个会员管理系统包含了添加会员、删除会员和显示所有会员的功能。用户可以通过控制台输入来进行操作。在这个示例中，会员的信息只包含了姓名和年龄，你可以根据实际需求进行修改。