package analog_ATM;
import java.io.IOException;
//import java.sql.*;
import java.util.*;
/**
* 1.账户类,模拟ATM机，即读取了用户的个人信息
* 2.查询余额
* 3.交易记录
* 4.存/取
* 5.其他功能
*/
class InsufficientFundsException extends Exception{//自定义异常类
Account account; //貌似有危险
private double dAmount;
InsufficientFundsException(){} //无参
InsufficientFundsException(Account account, double dAmount){
this.account = account;
this.dAmount = dAmount;
}
public String getMessage(){ //错误信息
String str = "取款失败！账户余额：" + account.getBalance()+ "，取款额：" + dAmount + "，余额不足";
return str;
}
}
class Account{
boolean isUseful = true; //卡是否可用
String cardNumber; //4位数的卡号，由银行按照规定分配
String userName; //用户名
String password; //密码
double balance; //余额
Account(){
this.isUseful = true;
this.balance = 0.0;
}
Account(String cardNumber, String userName, String password){
this.isUseful = true;
this.balance = 0.0;
this.cardNumber = cardNumber;
this.userName = userName;
this.password = password;
}
//
//public void setCardNumber() {
//Random rnd = new Random();
//rnd.setSeed(9999);
//}
//
public void setUserName() throws IOException{//cin exception
Scanner sc = new Scanner(System.in);
System.out.println("请输入您的用户名：");
this.userName = sc.nextLine();
}
//
public void setPassword() throws IOException {//cin exception
Scanner sc = new Scanner(System.in);
System.out.println("请输入您的密码：");
this.password = sc.nextLine();
}
//查余额
public double getBalance(){
return this.balance;
}
//取
public void withdraw(double money) throws InsufficientFundsException{
if (balance < money) {
throw new InsufficientFundsException(this, money);
}
balance = balance - money;
System.out.println("取款成功！账户余额为" + balance);
}
//查记录
public void recordsInfo() {
}
//存
public void saveMoney(double money) {
this.balance += money;
System.out.println("存款成功！新余额为："+this.balance);
}
}
//银行系统
class Bank{
Account card[];
static int current_account_index = 0;
static int accountNumber = 0; //账户数量
static int illegalCardNumber = 0; //冻结数量
Bank(){
card = new Account[1];
card[0] = new Account("1000", "root", "password");
accountNumber ++;
}
void addAccount() throws IOException, InsufficientFundsException {
Account [] temp = card;
card = new Account[accountNumber + 1];
for(int i = 0; i
如果觉得《java系统系统异常处理 银行系统（Java）异常处理》对你有帮助，请点赞、收藏，并留下你的观点哦！
