Java设计一个用户注册的程序

来源：互联网发布：淘宝定价策略编辑：程序博客网时间：2024/06/06 12:40

设计一个用户注册的程序，使用Scanner在控制台输入，字段有用户名、密码、手机号、邮箱
要求：用户名不超过6位不能以数字开头，密码必须包含大写小写字母和数字6-8位，手机号为11位数字，邮箱必须符合邮箱格式。
使用面向对象的编程思想完成用户注册，可以持续操作，并把注册成功的用户保存。

package lianxi10;

public class User {

private String name;private String pwd;private String phone;private String email;public String getName() {    return name;}public void setName(String name) {    this.name = name;}public String getPwd() {    return pwd;}public void setPwd(String pwd) {    this.pwd = pwd;}public String getPhone() {    return phone;}public void setPhone(String phone) {    this.phone = phone;}public String getEmail() {    return email;}public void setEmail(String email) {    this.email = email;}public User(String name, String pwd, String phone, String email) {    super();    this.name = name;    this.pwd = pwd;    this.phone = phone;    this.email = email;}public User() {    super();    // TODO Auto-generated constructor stub}@Overridepublic String toString() {    return "姓名：" + name + ", 密码：" + pwd + ", 手机号：" + phone + ", 邮箱：" + email;}

}

package lianxi10;

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

public class Reg {

static ArrayList<User> list = new ArrayList<User>();public static void main(String[] args) {    Scanner sc = new Scanner(System.in);    System.out.println("=============用户注册界面=============");    a:while (true) {        System.out.println("请选择：1.用户注册；2.查看用户；3.修改用户；4.删除用户；0.退出");        int i = sc.nextInt();        switch (i) {        case 1:            //注册信息            User u = yanzheng(sc);            list.add(u);            break;        case 2:            if(list.size()==0){                System.out.println("当前没有用户，请先注册！");            }else{                for (User user : list) {                    System.out.println(user);                }            }            break;        case 3:            setUser(sc);            break;        case 4:            delUser(sc);            break;        case 0:            break a;        default:        }    }    System.out.println("================退出系统，再见！===============");}/** * 删除用户 */public static void delUser(Scanner sc){    System.out.println("请输入要删除的用户名：");    String name = sc.next();    //声明要修改的用户对象    User u = null;    //在集合中查询同名的对象    for (User user : list) {        if(user.getName().equals(name)){            u = user;        }    }    if(u==null){        System.out.println("没有查询到该用户！");        return;    }    list.remove(u);    System.out.println("删除成功");}/** * 修改用户 * @param sc */public static void setUser(Scanner sc){    System.out.println("请输入要修改的用户名：");    String name = sc.next();    //声明要修改的用户对象    User u = null;    //在集合中查询同名的对象    for (User user : list) {        if(user.getName().equals(name)){            u = user;        }    }    if(u==null){        System.out.println("没有查询到该用户！");        return;    }    User user = yanzheng(sc);    list.set(list.indexOf(u), user);    System.out.println("修改成功");}/** * 注册 * @param sc * @return */private static User yanzheng(Scanner sc) {    User u = new User();    //判断姓名    while(true){        System.out.println("请输入用户名：（不能以数字开头，不超过6位）");        String name = sc.next();        if(name.matches("^[^0-9]([0-9a-zA-Z]{0,5})$")){            System.out.println("用户名通过");            u.setName(name);            break;        }else{            System.out.println("用户名不正确");        }    }    //判断密码，必须包含大写、小写、数字    while(true){        System.out.println("请输入密码：，必须包含大写、小写、数字6-8位");        String pwd = sc.next();        if(pwd.matches("^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])([a-zA-Z0-9]{6,8})$")){            System.out.println("密码通过");            u.setPwd(pwd);            break;        }else{            System.out.println("密码不通过");        }    }    //手机号    while(true){        System.out.println("请输入手机号：11位数字");        String phone = sc.next();        if(phone.matches("^([1])([3]|[5]|[7]|[8])([0-9]{9})$")){            System.out.println("手机号通过");            u.setPhone(phone);            break;        }else{            System.out.println("手机号不通过");        }    }    //邮箱    while(true){        System.out.println("请输入邮箱：");        String email = sc.next();        if(email.matches("^[0-9a-zA-Z_]+[@][a-zA-Z0-9]+[.](([c][o][m])|([c][n]))$")){            System.out.println("邮箱通过");            u.setEmail(email);            break;        }else{            System.out.println("邮箱不通过");        }    }    return u;}

}

package lianxi10;

import java.util.ArrayList;

public class Test {

public static void main(String[] args) {    User u = new User("tom","123","1306666","abc@qq.com");    User u2 = new User("jack","123","1306666","abc@qq.com");    Animal a = new Animal("狗");    //使用泛型，是在编译期对代码的限制    ArrayList<User> list = new ArrayList<User>();    //添加    list.add(u);    list.add(u2);

// list.add(a);

    //取值，单个查询

// System.out.println(list.size());
// System.out.println(list.get(0));
// System.out.println(list.get(1));

    System.out.println("修改前：");    //遍历集合，查询    for (User user : list) {        System.out.println(user);    }    System.out.println("======================");    //修改    list.set(1, new User("Lily","123","1306666","abc@qq.com"));    System.out.println("修改后：");    //遍历集合，查询    for (User user : list) {        System.out.println(user);    }    //删除    list.remove(1);    System.out.println("删除后："+list.size());}

}

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