1 package com.hpu.bai;  2 import java.util.Scanner;  3 public class ATM {  4     Bank bank = Bank.getBank();  5     Scanner input = new Scanner(System.in);  6     Account nowAcc ;  7     private boolean answer(String s){  8         if("Y".equals(s)){  9             return true; 10         } 11         return false;     12     } 13     public void start(){ 14         System.out.println("欢迎使用自助终端"); 15         System.out.println("-----------"); 16         System.out.println("1.开户"); 17         System.out.println("2.插卡"); 18         System.out.println("3.系统登录"); 19         System.out.println("4.退出系统"); 20         System.out.println("-----------"); 21         System.out.println("请输入你要操作的选项"); 22         String index = input.next(); 23         if("1".equals(index)){ 24             //创建新账户 25             creatNew(); 26         }else if("2".equals(index)){ 27             //登录账户 28             login(); 29         }else if("3".equals(index)){ 30             //系统管理 31             adminLogin(); 32         }else if("4".equals(index)){ 33             //退出系统 34             System.out.println("谢谢你的使用"); 35             System.exit(0);; 36         }else { 37             //System.out.println("你的输入有误，请重新输入"); 38         } 39         start(); 40     } 41     private void adminLogin() { 42         System.out.println("请输入管理员密码"); 43         String pwd = input.next(); 44         if(pwd.equals("admin")){ 45             adminMenu(); 46         }else{ 47             System.out.println("密码错误"); 48         } 49     } 50     private void adminMenu() { 51     System.out.println("管理员在线"); 52     System.out.println("-------------"); 53     System.out.println("1.显示所有账户"); 54     System.out.println("2.冻结账户"); 55     System.out.println("3.恢复账户"); 56     System.out.println("4.安全退出"); 57     System.out.println("-------------"); 58     String index = input.next(); 59     if("1".equals(index)){ 60         //显示所用账户 61         allAcc();     62     }else if("2".equals(index)){ 63         //冻结账户 64         disableAcc(); 65     }else if("3".equals(index)){ 66         //恢复账户 67         enableAcc(); 68     }else if("4".equals(index)){ 69         //安全退出 70         System.out.println("你已经安全退出"); 71         start(); 72     } 73         adminMenu(); 74     } 75     private void enableAcc() { 76         System.out.println("当前不可用账户"); 77         Account[] accs = bank.getAccounts(); 78         for (Account account : accs) { 79             if(account != null && !account.isStatus()){ 80                 System.out.println("账户名称\t是否可用"); 81                 System.out.println(account.getName()+"\t"+(account.isStatus()?"是":"否")); 82             } 83         } 84         System.out.println("请输入你要恢复的账户名称"); 85         String name = input.next(); 86         Account disAcc = bank.getAccountByName(name); 87         if(disAcc != null && !disAcc.isStatus()){ 88             System.out.println("确定要恢复该账户（Y/N）"); 89             if(answer(input.next())){ 90                 disAcc.setStatus(true); 91                 System.out.println("恢复成功"); 92             }else{ 93                 System.out.println("该账户未被恢复"); 94                 allAcc(); 95             } 96         }else{ 97             System.out.println("输入有误"); 98         } 99     }100     101     private void disableAcc() {102         System.out.println("当前可用账户");103         Account[] accs = bank.getAccounts();104         for (Account account : accs) {105             if(account != null && account.isStatus()){106                 System.out.println("账户名称\t是否可用");107                 System.out.println(account.getName()+"\t"+(account.isStatus()?"是":"否"));108             }109         }110         System.out.println("请输入你要冻结的账户名称");111         String name = input.next();112         Account disAcc = bank.getAccountByName(name);113         if(disAcc != null && disAcc.isStatus()){114             System.out.println("确定要冻结该账户（Y/N）");115             if(answer(input.next())){116                 disAcc.setStatus(false);117                 System.out.println("冻结成功");118             }else{119                 System.out.println("该账户未被冻结");120                 allAcc();121             }122         }else{123             System.out.println("输入有误");124         }125     }126     127     private void allAcc() {128         Account[] accs = bank.getAccounts();129         for (Account account : accs) {130             if(account != null){131                 System.out.println("账户名称\t是否可用");132                 System.out.println(account.getName()+"\t"+(account.isStatus()?"是":"否"));133             }134         }135         136     }137     private void login() {138         System.out.println("请输入你的账户名字");139         String name = input.next();140         nowAcc = bank.getAccountByName(name);141         if(nowAcc == null){142             System.out.println("你输入的账户不存在，请重新输入");143             login();144         }else{145             System.out.println("请输入账户密码");146             String pwd = input.next();147             if(nowAcc.getPassword().equals(pwd)){148                 System.out.println("登录成功");149                 userMenu();150             }else{151                 System.out.println("你输入的密码错误，请重新输入");152             }153         }154         155     }156     private void userMenu() {157         System.out.println("欢迎"+nowAcc.getName()+"的到来");158         System.out.println("-----------");159         System.out.println("1.查询余额");160         System.out.println("2.存款");161         System.out.println("3.取款");162         System.out.println("4.转账");163         System.out.println("5.修改密码");164         System.out.println("6.退出登录");165         System.out.println("-----------");166         System.out.println("请输入你要操作的选项");167         String index = input.next();168         if("1".equals(index)){169             //查询余额170             queryMoney();171             172         }else if("2".equals(index)){173             //存款174             saveMoney();175         }else if("3".equals(index)){176             //取款177             drawMoney();178         }else if("4".equals(index)){179             //转账180             transMoney();    181         }else if("5".equals(index)){182             //修改密码183             rePwd();184         }else if("6".equals(index)){185             start();186         }else{187             System.out.println("你的输入有误，请重新输入");188         }189         userMenu();190     }191     192     private void rePwd() {193         System.out.println("请输入原始密码");194         String pwd = input.next();195         if(nowAcc.getPassword().equals(pwd)){196             System.out.println("请输入新密码");197             String pwd1 = input.next();198             System.out.println("请再次输入新密码");199             String pwd2 = input.next();200             if(pwd1.equals(pwd2)){201                 nowAcc.setPassword(pwd1);202                 System.out.println("修改密码成功");203             }else{204                 System.out.println("两次密码输入不一样");205                 rePwd();206             }207         }208         209     }210     private void transMoney() {211         System.out.println("请输入你要转入的账户名字");212         String name = input.next();213         if(nowAcc.getName().equals(name)){214             System.out.println("不能够给自己转账，请重新输入");215         }else{    216             Account transAcc = bank.getAccountByName(name);217             if(transAcc == null){218                 System.out.println("你输入的账户不存在");219             }else{220                 System.out.println("请输入你要转入的金额");221                 Float money = input.nextFloat();222                 if(money > 0){223                     if(money < nowAcc.getMoney()){224                         System.out.println("请确保资金安全，你确实要转账（Y/N）");225                         if(answer(input.next())){226                             nowAcc.setMoney(nowAcc.getMoney()-money);227                             transAcc.setMoney(transAcc.getMoney()+money);228                             System.out.println("转账成功");229                             queryMoney();230                         }231                     }else{232                         System.out.println("余额不足，请重新输入");233                     }234                 }else{235                     System.out.println("你输入的金额有误");236                 }237                 238             }239         }240     }241     private void drawMoney() {242         //queryMoney();243         System.out.println("请输入你要取的金额");244         Float money = input.nextFloat();245         if(money > 0){246             if(money > nowAcc.getMoney()){247                 System.out.println("当前余额不足");248                 drawMoney();249             }else{            250                 nowAcc.setMoney(nowAcc.getMoney()-money);251                 System.out.println("取款成功");252                 queryMoney();253             }254         }else{255             System.out.println("你输入的金额有误，请重新输入");        256         }257     }258     259     private void saveMoney() {260         System.out.println("请输入你要存入的金额");261         Float money = input.nextFloat();262         if(money>0){263             nowAcc.setMoney(nowAcc.getMoney()+money);264             System.out.println("存款成功");265             queryMoney();266         }else{267             System.out.println("你输入的金额有误，请重新输入");        268         }269     }270     private void queryMoney() {271         System.out.println("你当前的余额为￥: "+nowAcc.getMoney());272         userMenu();273     }274     private void creatNew() {275         //验证账户是否可用276         System.out.println("请输入你所开账户的名字");277         String name = input.next();278         Account acc = bank.getAccountByName(name);    279         if(acc == null){280             //账户可用后提示可以输入密码281             System.out.println("检测你输入的账户可用");282             System.out.println("请输入你要设置的密码");283             String pwd1 = input.next();284             System.out.println("请再次输入你要设置的密码");285             String pwd2 = input.next();286             if(pwd1.equals(pwd2)){287                 Account newAcc = new Account();288                 newAcc.setName(name);289                 newAcc.setPassword(pwd2);290                 System.out.println("你是否要存入现金(Y/N)");291                 if(answer(input.next())){292                     System.out.println("请输入你要存入的金额");293                     Float money = input.nextFloat();294                     newAcc.setMoney(money);        295                 }else{296                     newAcc.setMoney(0F);297                 }298                 newAcc.setStatus(true);299                 //要将新开好的账户传输到银行账户当中去300                 if(bank.accSave(newAcc)){                        301                     System.out.println("开户成功，请登录");302                 }else{303                     System.out.println("服务器忙，请稍后");304                 }    305             }else{306                 System.out.println("你两次输入的密码不同，请重新输入");307                 creatNew();308             }309         }else{310             System.out.println("你所开户的名字已重复，请重新输入开户名字");311             creatNew();312         }    313     }314 }

 1 package com.hpu.bai; 2  3 public class Bank { 4     private Bank(){} 5     private static Bank bank = null; 6     public static Bank getBank() { 7         if(bank == null){ 8             bank = new Bank(); 9         }10         return bank;11     }12     13     public void setAccounts(Account[] accounts) {14         this.accounts = accounts;15     }16     private Account[] accounts = new Account[100];17 18     public Account[] getAccounts() {19         return accounts;20     }21     public Account getAccountByName(String name){22         for (int i = 0; i < accounts.length; i++) {23             if(accounts[i] != null && accounts[i].getName().equals(name)){24                 return accounts[i];25             }26         }27         return null;28     }29     public boolean accSave(Account a){30         for (int i = 0; i < accounts.length; i++) {31             if(accounts[i]== null){32                 accounts[i] = a;33                 return true;34             }35         }36         return false;37     }38 }

 1 package com.hpu.bai; 2  3 public class Account { 4     private String name; 5     private String password; 6     private Float money ; 7     private boolean status; 8     public String getName() { 9         return name;10     }11     public void setName(String name) {12         this.name = name;13     }14     public String getPassword() {15         return password;16     }17     public void setPassword(String password) {18         this.password = password;19     }20     public Float getMoney() {21         return money;22     }23     public void setMoney(Float money) {24         this.money = money;25     }26     public boolean isStatus() {27         return status;28     }29     public void setStatus(boolean status) {30         this.status = status;31     }32     33 }

1 package com.hpu.bai;2 3 public class Test {4     public static void main(String[] args) {5         ATM atm = new ATM();6         atm.start();7     }8 }