自动取款机项目(ATMTest是测试类)
ATMTest类
/**
* @author colin
*
*/
public class ATMTest {
public static void main(String[] args) {
AtmView atmView = new AtmView();
atmView.view();
}
}Account类、
/**
* @author Colin
*
*/
public class Account {
private String accountId;// 账户帐号
private String accountPwd;// 账户密码
private double accountBalance;// 账户余额
/**
* @param accountId
* @param accountPwd
* @param accountBalance
*/
public Account(String accountId, String accountPwd, double accountBalance) {
super();
this.accountId = accountId;
this.accountPwd = accountPwd;
this.accountBalance = accountBalance;
}
/**
*
*/
public Account() {
super();
// TODO Auto-generated constructor stub
}
/**
* @return the accountId
*/
public String getAccountId() {
return accountId;
}
/**
* @param accountId
* the accountId to set
*/
public void setAccountId(String accountId) {
this.accountId = accountId;
}
/**
* @return the accountPwd
*/
public String getAccountPwd() {
return accountPwd;
}
/**
* @param accountPwd
* the accountPwd to set
*/
public void setAccountPwd(String accountPwd) {
this.accountPwd = accountPwd;
}
/**
* @return the accountBalance
*/
public double getAccountBalance() {
return accountBalance;
}
/**
* @param accountBalance
* the accountBalance to set
*/
public void setAccountBalance(double accountBalance) {
this.accountBalance = accountBalance;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "Account [accountId=" + accountId + ", accountPwd=" + accountPwd + ", accountBalance=" + accountBalance
+ "]";
}
}
类:Bank类、
import java.util.Arrays;
public class Bank {
private Account[] accounts;// 账户信息
private static Bank bank = new Bank();
private Bank() {
initAccount();
}
/**
*
*/
public static Bank getInstance() {
return bank;
}
private void initAccount() {
accounts = new Account[3];
accounts[0] = new Account("00111", "123456", 3000);
accounts[1] = new Account("00112", "123456", 5000);
accounts[2] = new Account("00113", "123456", 13000);
}
public Bank(Account[] accounts) {
this.accounts = accounts;
}
public Account[] getAccounts() {
return accounts;
}
public void setAccounts(Account[] accounts) {
this.accounts = accounts;
}
@Override
public String toString() {
return "Bank [accounts=" + Arrays.toString(accounts) + "]";
}
}
BankService类、
/**
* 1、提供取款功能的getMoney方法 2、提供存款功能的saveMoney方法 3、显示当前账户余额功能的showMoney方法
* 4、提供转账功能的transToMoney方法
*/
public class BankService {
private Bank bank;
public BankService() {
bank = Bank.getInstance();
}
/**
* @return the bank
*/
public Bank getBank() {
return bank;
}
/**
* @param bank
* the bank to set
*/
public void setBank(Bank bank) {
this.bank = bank;
}
public void getMoney(Account accountCheck, double money) {
boolean isOk = checkMoney(accountCheck, money);
if (isOk) {
accountCheck.setAccountBalance(accountCheck.getAccountBalance() - money);
System.out.println("取出 " + money + " 成功");
} else {
System.out.println("余额不足");
}
}
private boolean checkMoney(Account accountCheck, double money) {
if (money > accountCheck.getAccountBalance()) {
return false;
}
return true;
}
public void saveMoney(Account accountCheck, double money) {
accountCheck.setAccountBalance(accountCheck.getAccountBalance() + money);
System.out.println("存入 " + money + " 成功");
}
public void showMoney(Account accountCheck) {
System.out.println(accountCheck.getAccountBalance());
}
public void transToXX(Account accountCheck, String toIn, double toInMoney) {
Account isAccount = checkAccount(toIn);
if (isAccount != null) {
boolean isOk = checkMoney(accountCheck, toInMoney);
if (isOk) {
isAccount.setAccountBalance(isAccount.getAccountBalance() + toInMoney);
accountCheck.setAccountBalance(accountCheck.getAccountBalance() - toInMoney);
System.out.println("转入 账号" + toIn + " " + toInMoney + "元 成功");
} else {
System.out.println("您的余额不足,无法转账!");
}
} else {
System.out.println("您要转入的卡号不存在!");
}
}
/**
* @param toIn
* @return
*/
private Account checkAccount(String toIn) {
for (int i = 0; i < bank.getAccounts().length; i++) {
Account account = bank.getAccounts()[i];
if (account.getAccountId().equals(toIn)) {
return account;
}
}
return null;
}
public Account checkLogin(String accountIn, String psd) {
if (accountIn == null) {
return null;
}
for (int i = 0; i < bank.getAccounts().length; i++) {
Account account = bank.getAccounts()[i];
if (accountIn.equals(account.getAccountId()) && psd.equals(account.getAccountPwd())) {
return account;
}
}
System.out.println("账号密码错误!");
return null;
}
}
AtmView类、
import java.util.Scanner;
/**
* @author Colin
*
*/
public class AtmView {
private Scanner sc = new Scanner(System.in);
public void view() {
BankService bs = new BankService();
for (int count = 0; count < 3; count++) {
System.out.println("欢迎进入中国银行ATM机操作界面");
Account accountCheck = null;
for (int i = 0; i < 10; i++) {
System.out.println("--------------------");
System.out.println("请输入账号和密码");
String accountIn = sc.next();
String psd = sc.next();
accountCheck = bs.checkLogin(accountIn, psd);
if (accountCheck != null) {
break;
}
}
while (accountCheck != null) {
System.out.println("1.\t取款");
System.out.println("2.\t存款");
System.out.println("3.\t查询");
System.out.println("4.\t转账");
System.out.println("5.\t退出");
int key = sc.nextInt();
double money = 0;
boolean isExit = false;
switch (key) {
case 1:
System.out.println("请输入取款金额:");
money = sc.nextDouble();
bs.getMoney(accountCheck, money);
break;
case 2:
System.out.println("请输入存款金额:");
money = sc.nextDouble();
bs.saveMoney(accountCheck, money);
break;
case 3:
bs.showMoney(accountCheck);
break;
case 4:
System.out.println("请输入要转入的账号");
String toIn = sc.next();
System.out.println("请输入金额");
double toInMoney = sc.nextDouble();
bs.transToXX(accountCheck, toIn, toInMoney);
break;
default:
isExit = true;
break;
}
if (isExit) {
System.out.println("您已退出登录,欢迎再次使用中国银行ATM机");
break;
}
}
}
}
}