Java项目实现模拟ATM机

本文实例为大家分享了Java实现模拟ATM机的具体代码，供大家参考，具体内容如下

项目名称

模拟ATM机

项目描述

简单实现ATM机功能

代码实现

测试类

public class Test {
    //模拟多功能ATM机
  public static void main(String[] args) {
    ATM atm = new ATM();
    atm.opearte();
  }
}

主类：实现主方法

public class ATM {
  private Bank bank;
  public ATM(){
    bank = new Bank();
  }
  private void success(BankCard bankCard) {
    while (true) {
      System.out.println("请选择：1、查询余额，2、取款，3、存款，4、转账，5、退卡");
      Scanner scanner = new Scanner(System.in);
      int choice = scanner.nextInt();
      if (choice == 5) {
 return;
      }
      switch (choice) {
 case 1:
   int money = bank.printf(bankCard);
   System.out.println("余额：" + money);
   break;
 case 2:
   System.out.println("请输入取款金额：");
   money = scanner.nextInt();
   bankCard.withdraw(money);
   break;
 case 3:
   System.out.println("请输入存款金额：");
   money = scanner.nextInt();
   bankCard.deposit(money);
   break;
 case 4:
   System.out.println("请输入对方账户id：");
   int id = scanner.nextInt();
   BankCard card = bank.transfer(id);
   if(card != null){
     System.out.println("请输入转账金额：");
     money = scanner.nextInt();
     if(money <= bankCard.getMoney()){
bankCard.withdraw(money);
card.deposit(money);
     }else {
System.out.println("转账失败");
     }
   }else {
     System.out.println("未找到该账户");
   }
   break;
 default:
      }
    }
  }
  private void login(){ //登录
    System.out.println("请输入账号，密码");
    Scanner scanner = new Scanner(System.in);
    int id = scanner.nextInt();
    int password = scanner.nextInt();
    BankCard bankCard = bank.search(id,password);
    if(bankCard != null){
      System.out.println("登录成功");
      success(bankCard);
    }else {
      System.out.println("登录失败，请注册");
    }
  }
  private void register(){ //注册
    System.out.println("请输入账号，密码");
    Scanner scanner = new Scanner(System.in);
    int id = scanner.nextInt();
    int password = scanner.nextInt();
    BankCard bankCard = bank.search(id,password);
    if(bankCard != null){
      System.out.println("该账号已存在，请直接登录");
    }else {
      bank.addcard(id,password);
      System.out.println("注册成功");
    }
  }
  public void opearte() {
    while (true) {
      System.out.println("请选择：1、登录，2、注册，3、退出");
      Scanner scanner = new Scanner(System.in);
      int choice = scanner.nextInt();
      if (choice == 3) {
 return;
      }
      switch (choice) {
 case 1:
   login();
   break;
 case 2:
   register();
   break;
 default:
      }
    }
  }
}

银行类：一个银行对应多个ATM机

public class Bank {
  private BankCard[] bankCards;
  private final int INITSIZE = 10;
  private int size;
  public Bank(){
    bankCards = new BankCard[INITSIZE];
    size = 0;
  }
  public BankCard search(int id,int password){ //搜索
    BankCard[] bankCard = bankCards;
    for(int i=0;i

银行卡类：不同账户的操作

public class BankCard {
  private int id;
  private int password;
  private int money;
  private int size = 0;
  public BankCard(int id,int password){
    this.id = id;
    this.password = password;
    money = 0;
  }
  public int getId(){
    return id;
  }
  public int getPassword(){
    return password;
  }
  public int getMoney(){
    return money;
  }
  public void withdraw(int money){ //取款
    if(this.money >= money){
      this.money -= money;
    }else {
      System.out.println("取款失败");
    }
  }
  public void deposit(int money){ //存款
    this.money += money;
  }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。