Java个人手机账户功能的基本操作实现

1. 创建实体类Phone
2. 启动程序进入主菜单，控制台上打印【1】用户登录 【2】办理手机号 【3】退出
3. 用户登录模块：提示输入手机号，输入密码之后进入主页面 【1】查询套餐 【2】账户余额 【3】修改密码 【4】返回主菜单
4. 办理手机号模块：提示可以选择的备选手机号，用完后删除。注册前查询下注册的号码是否已存在集合里，可以注册多个。

package com.company.day06.phone2;
//实体类
public class Phone {
    private String name;//机主姓名
    private String phoneNum;//手机号
    private String password;//手机密码
    private String phoneTC;//手机套餐
    private int phoneYE;//账户余额

    public Phone(){}
    public Phone(String name, String phoneNum, String password, String phoneTC, int phoneYE) {
        this.name = name;
        this.phoneNum = phoneNum;
        this.password = password;
        this.phoneTC = phoneTC;
        this.phoneYE = phoneYE;
    }

    public String getName() {
        return name;
    }

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

    public String getPhoneNum() {
        return phoneNum;
    }

    public void setPhoneNum(String phoneNum) {
        this.phoneNum = phoneNum;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getPhoneTC() {
        return phoneTC;
    }

    public void setPhoneTC(String phoneTC) {
        this.phoneTC = phoneTC;
    }

    public int getPhoneYE() {
        return phoneYE;
    }

    public void setPhoneYE(int phoneYE) {
        this.phoneYE = phoneYE;
    }

    @Override
    public String toString() {
        return "Phone{" +
                "name='" + name + ''' +
                ", phoneNum=" + phoneNum +
                ", password=" + password +
                ", phoneTC='" + phoneTC + ''' +
                ", phoneYE=" + phoneYE +
                '}';
    }

}

package com.company.day06.phone2;

import java.util.ArrayList;
import java.util.List;

public class Arr {

     static List list = new ArrayList<>();//供客户选的手机号
     static List list2 = new ArrayList<>();//套餐
     static {
        list.add("17588886666");
        list.add("17611112222");
        list.add("17855555555");
        list.add("18688888888");
        list.add("15055555555");
        list.add("18055555555");
        list.add("17699999999");
        list.add("17588888888");
        list.add("19099995555");
        list.add("18033330000");

        list2.add("38");
        list2.add("88");
        list2.add("108");
    }

}

package com.company.day06.phone2;

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

public class Work {
    Scanner scanner = new Scanner(System.in);
    Arr arr = new Arr();
    List list3 = new ArrayList<>();

    //主菜单
    public void menu(){
        System.out.println("~~~欢迎进入移动通讯系统~~~");
        System.out.println("请选择一项服务：【1】用户登录 【2】办理手机号 【3】退出系统");
        int i = scanner.nextInt();
        if(i==1){
            //用户登录
            login();
        }else if(i==2) {
            //注册手机号
            show();
        }else if(i==3){
            System.out.println("系统已退出，期待下次为您服务！");
            return;
        }else {
            System.out.println("输入有误，请重新输入！");
            menu();
        }
    }
    //用户登录
    public void login(){
        System.out.println("请输入手机号：");
        String pname = scanner.next();
        System.out.println("请输入密码：");
        String pswd = scanner.next();

        Boolean bname = false;
        Boolean bpwd = false;
        Phone phone = new Phone();//-----------------------

        for(Phone ph : list3){
            //判断手机号是否存在
            if(pname.equals(ph.getPhoneNum())){
                bname = true;
                //判断密码是否一致
                if(pswd.equals(ph.getPassword())){
                    bpwd = true;
                    phone = ph;
                }
            }
        }

        if(bname){
            if(bpwd){
                System.out.println("登录成功！");
                page(phone);
            }else{
                System.out.println("密码有误，请重新输入密码！");
                login();
            }
        }else{
            System.out.println("手机号不存在，请重新输入手机号！");
            login();
        }

    }
    public String getstr(String sc){
        Boolean b = false;
        String s = "";
        for(String str : arr.list){
            if(str.equals(sc)){
                s = str;
                b=true;
                arr.list.remove(str);
                break;
            }
        }
        if(!b){
            System.out.println("您输入的手机号有误，重新输入");
            show();
        }
        return s;
    }

    public String gettc(String ss){
        Boolean b = false;
        String t = "";
        for(String str : arr.list2){
            if(str.equals(ss)){
                t = str;
                b=true;
                break;
            }
        }
        if(!b){
            System.out.println("您输入的套餐有误，重新输入");
            String next = scanner.next();
            gettc(next);
        }
        return t;
    }
    //注册手机号
    public void show(){
        Phone phone = new Phone();

        System.out.println("欢迎来到办理手机号模块！");
        System.out.println(arr.list);//可以选的手机号在list里
        System.out.println("请选择您想要的手机号：");
        String sc = scanner.next();
        phone.setPhoneNum(getstr(sc));

        System.out.println("请设置密码：");
        phone.setPassword(scanner.next());

        System.out.println("请设置您的用户名：");
        phone.setName(scanner.next());

        System.out.println(arr.list2);
        System.out.println("请选择您想要的套餐：");
        String ss = scanner.next();
        phone.setPhoneTC(gettc(ss));

        System.out.println("请您选择充值金额，不得低于10元：");
        phone.setPhoneYE(scanner.nextInt());

        System.out.println("恭喜您，注册成功！");
        System.out.println(phone);
        list3.add(phone);
        System.out.println("_____________________");
        System.out.println("请登录！");
        login();
    }
    //主页面
    public void page(Phone phone){
        System.out.println("请选择一项服务；【1】查询套餐 【2】账户余额 【3】修改密码 【4】退出主页面");
        int m = scanner.nextInt();
        if(m==1){
            System.out.print("您的套餐是：");
            System.out.println(phone.getPhoneTC());
            page(phone );
        }else if(m==2){
            System.out.print("您的余额是：");
            System.out.println(phone.getPhoneYE());
            page(phone );
        }else if(m==3){
            while(true){
                System.out.println("请输入新密码：");
                String p = scanner.next();

                System.out.println("请再次输入您刚才的密码：");
                String pa = scanner.next();
                //判断两次输入是否一致
                if(p.equals(pa)){
                    System.out.println("修改密码成功！");
                    phone.setPassword(p);
                    page(phone);
                    break;
                }else{
                    System.out.println("两次密码不一致");
                }
            }

        }else if(m==4){
            //退出主页面，返回主菜单
            menu();
        }else{
            System.out.println("请输入正确的选项！");
            page(phone);
        }
    }

    public static void main(String[] args) {
        Work work = new Work();
        work.menu();
    }
}