Java基于控制台界面实现ATM系统
更新时间:2022年05月27日 11:06:00 作者:从零开始的JAVA世界
这篇文章主要为大家详细介绍了Java基于控制台界面实现ATM系统,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Java实现ATM系统的具体代码,供大家参考,具体内容如下
这应该算最基础的Javase项目了,但其中逻辑还是得想想的。
功能还算完善,只是对输入数据的校验没做全,之后做web时再加上。
没有数据库。
完整代码在最后。
流程图
登录
想模拟提款机插卡登录的,因此没做注册账号的功能,手动先塞了三个账号。
有三次输入密码机会。
查询
取款
存款
转账
修改密码
退出
代码
文件结构
下面两个类复制过去放到ATM文件夹下就能运行。
package ATM; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Account { private String cardID; private String username; private String password; private double balance; private boolean status;//卡 锁定状态 public Account() { } public Account(String cardID, String username, String password, double balance, boolean status) { this.cardID = cardID; this.username = username; this.password = password; this.balance = balance; this.status = status; } public Account(String cardID, String username, String password, double balance) { this.cardID = cardID; this.username = username; this.password = password; this.balance = balance; } public String getCardID() { return cardID; } public void setCardID(String cardID) { this.cardID = cardID; } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } public double getBalance() { return balance; } public void setBalance(double balance) { this.balance = balance; } public boolean isStatus() { return status; } public void setStatus(boolean status) { this.status = status; } @Override public String toString(){ System.currentTimeMillis(); Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String formatDate = sdf.format(date); return "银行:新航路银行\n" + "银行账号:"+cardID+"\n" +"用户名:"+username+"\n" +"余额:"+balance+"\n" +formatDate; } }
package ATM; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.Scanner; public class ATM { static Scanner sc = new Scanner(System.in); static ArrayList<Account> accounts; public static void main(String[] args) { //模仿插卡ATM,因此没做注册用户功能,这里自己添加了几个用户做测试。 accounts = new ArrayList<>(); accounts.add(new Account("10001", "路飞", "ONEPIECE", 100,true)); accounts.add(new Account("10002", "索隆", "123456", 10000,false)); accounts.add(new Account("10003", "娜美", "123456", 1000000d,true)); //登录 loginVerify(); } //登录验证 public static void loginVerify() { System.out.println("提示:有这些账户"); for (Account account : accounts) { System.out.println("卡号:"+account.getCardID() +" 用户名:" + account.getUsername()+" 密码:"+account.getPassword()+" 余额:"+account.getBalance()); } System.out.println("---------------------------------------------"); //模拟插卡,手动输入银行卡号 System.out.print("输入银行卡号:"); String cardID = sc.next(); //根据卡号,判断此账号是否存在 for (int i = 0; i < accounts.size(); i++) { Account account = accounts.get(i); if (cardID.equals(account.getCardID())) { //判断卡号是否存在 if(account.isStatus()) { //看该卡是否被锁 //账号存在,输入密码 System.out.print("请输入密码:"); int count = 3;//可输入3次密码 while (count > 0) { sc.useDelimiter("\n"); String pwd = sc.next(); if (pwd.equals(accounts.get(i).getPassword())) { //登录成功,转到主界面 mainInterface(accounts.get(i)); } else { if(--count == 0){ System.out.println("此卡已锁,请到人工处咨询办理。"); accounts.get(i).setStatus(false); }else { System.out.println("还有" + count + "次输入机会"); } } } }else{ System.out.println("此卡已锁,请到人工处咨询办理。"); } break; } if(i == accounts.size()-1){ System.out.println("此卡号不存在!!"); } } } public static void mainInterface(Account account) { System.out.println("====================================="); System.out.println("|| 1.查询余额 5.修改密码||"); System.out.println("|| 2.取款 6.退卡 ||"); System.out.println("|| 3.存款 ||"); System.out.println("|| 4.转账 ||"); System.out.println("====================================="); System.out.print("请输入要操作的号码:"); int i = sc.nextInt(); switch (i) { case 1: queryBalance(account); break; case 2: withdrawal(account); break; case 3: deposit(account); break; case 4: transfer(account); break; case 5: updatePassword(account); break; case 6: exitSystem(); break; default: System.out.println("输入号码不对!"); break; } } //查询余额 public static void queryBalance(Account account) { System.out.println("====================================="); System.out.println("|| "+account.getUsername() + "的余额: " + account.getBalance()); System.out.println("====================================="); mainInterface(account); } //取款 public static void withdrawal(Account account) { System.out.print("请输入取款金额:"); double money = sc.nextInt(); if (money <= account.getBalance()) { account.setBalance(account.getBalance() - money); System.out.println("取款成功!!"); System.out.println("====================================="); System.out.println("|| 1.返回主界面 2.打印发票||"); System.out.println("====================================="); int i = sc.nextInt(); switch (i) { case 1: mainInterface(account); break; case 2: Date date = new Date(); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); String formatDate = sdf.format(date); System.out.println("银行:新航路银行\n"+ "银行卡:"+account.getCardID()+"\n"+ "用户名:"+account.getUsername()+"\n"+ "本次取款:"+money+"\n"+ formatDate); mainInterface(account); break; } } else { System.out.println("oh,我可怜的孩子!余额不足捏。"); System.out.println("====================================="); System.out.println("|| 1.返回 enter ||"); System.out.println("====================================="); sc.next(); mainInterface(account); } } //存款 public static void deposit(Account account) { System.out.print("请输入要存款金额:"); double tempMoney = sc.nextDouble(); account.setBalance(account.getBalance() + tempMoney); System.out.println("哔~哔~哔 点钞中..."); System.out.println("存款成功"); mainInterface(account); } //转账 public static void transfer(Account account) { System.out.println("请输入对方卡号(提示账号有:10001 /10002 /10003)"); String cardID = sc.next(); //根据卡号,判断此账号是否存在 for (int i = 0; i < accounts.size(); i++) { if (cardID.equals(accounts.get(i).getCardID())) { System.out.print("请输入对象用户名验证:"); sc.nextLine(); String next = sc.nextLine(); if(next.equals(accounts.get(i).getUsername())) { System.out.print("请输入要转的金额:"); double m = sc.nextDouble(); if (m > account.getBalance()) { System.out.println("你没这么多钱,转账失败!"); break; } else { account.setBalance(account.getBalance() - m); accounts.get(i).setBalance(m + accounts.get(i).getBalance()); System.out.println("转账成功"); break; } }else{ System.out.println("账号与用户名不匹配,转账失败"); break; } } if(i == accounts.size()-1) { System.out.println("此卡号不存在!!"); } } mainInterface(account); } //5. 修改密码 public static void updatePassword(Account account){ System.out.print("请输入新密码:"); String s1 = sc.next(); System.out.print("请再次输入新密码:"); String s2 = sc.next(); if(s1.equals(s2)){ account.setPassword(s1); System.out.println("密码修改成功,请重新登录!"); loginVerify(); }else{ System.out.println("两次密码不一致"); mainInterface(account); } } //6. 退出 public static void exitSystem() { System.exit(0); //loginVerify(); } }
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脚本之家。
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