import java.io.*;

/*该类为实现客户信息及部分功能*/

class Account {

private String code =null; //信用卡号

private String name =null; //客户姓名

private String password=null; //客户密码

private double money =0.0; //卡里金额

/********************/

public Account(String code,String name,String password,double money)

{

this.code=code;

this.name=name;

this.password=password;

this.money=money;

}

protected String get_Code() {

return code;

}

protected String get_Name() {

return name;

}

protected String get_Password() {

return password;

}

public double get_Money() {

return money;

}

/*得到剩余的钱的数目*/

protected void set_Balance(double mon) {

money -= mon;

}

}

/**********实现具体取款机功能*********/

class ATM {

Account act;

// private String name;

// private String pwd;

public ATM() {

act=new Account("000000","Devil","123456",50000);

}

/***********欢迎界面***********/

protected void Welcome()

{

String str="---------------------------------";

System.out.print(str+"\n"+

"欢迎使用Angel模拟自动取款机程序.\n"+str+"\n");

System.out.print(" 1.>取款."+"\n"+

" 2.>查询信息."+"\n"+

" 3.>密码设置."+"\n"+

" 4.>退出系统."+"\n");

}

/**********登陆系统**********/

protected void Load_Sys() throws Exception

{

String card,pwd;

int counter=0;

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

do {

System.out.println("请输入您的信用卡号:");

card=br.readLine();

System.out.println("请输入您的密码:");

pwd=br.readLine();

if(!isRight(card,pwd))

{

System.out.println("您的卡号或密码输入有误.");

counter++;

}

else

SysOpter();

}while(counter<3);

Lock_Sys();

}

/**********系统操作**********/

protected void SysOpter() throws Exception

{

int num;

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

System.out.println("请选择您要操作的项目(1-4):");

num=br.read(); //num为ASICC码转换的整数

switch(num) {

case 49: BetBalance(); break;

case 50: Inqu_Info(); break;

case 51: Set_Password(); break;

case 52: Exit_Sys(); break;

}

System.exit(1);

}

/**********信息查询**********/

protected void Inqu_Info() {

System.out.print("---------------------\n"+

act.get_Code()+"\n"+

act.get_Name()+"\n"+

act.get_Money()+"\n"+

"-----------------------");

}

/**********取款**********/

public void BetBalance() throws Exception

{

String str=null,str1;

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

do {

System.out.println("请输入您要取的数目:");

str=br.readLine();

str1=String.valueOf(act.get_Money());

if(str.compareTo(str1)>0) {

System.out.println("超过已有的钱数,请重新输入您要取的数目:");

}

else {

/*操作成功*/

// act.set_Balance(str);

System.out.println("取款成功,请收好您的钱.");

Welcome();

SysOpter();

}

}while(true);

}

/**********判断卡内是否有钱**********/

protected boolean isBalance() {

if(act.get_Money()<0) {

// System.out.println("对不起,您的钱数不够或卡已透支.");

return false;

}

return true;

}

/********卡号密码是否正确******/

protected boolean isRight(String card,String pwd)

{

if(act.get_Code().equals(card) && act.get_Password().equals(pwd))

return true;

else

return false;

}

/**********密码修改**********/

protected void Set_Password() throws Exception

{

String pwd=null;

int counter=0;

BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

do {

System.out.println("请输入旧密码:");

pwd=br.readLine();

if(act.get_Password().equals(pwd))

{

do {

System.out.println("请输入新密码:");

String pwd1=br.readLine();

System.out.println("请再次输入新密码:");

String pwd2=br.readLine();

if(!pwd1.equals(pwd2))

{

System.out.println("两次输入不一致,请再次输入.");

}

else

{

System.out.println("密码修改成功,请使用新密码.");

Welcome();

SysOpter();

}

}while(true);

}

}while(counter>3);

}

/**********锁定机器**********/

protected void Lock_Sys() {

System.out.println("对不起,您的操作有误,卡已被没收.");

System.exit(1);

}

/**********结束系统**********/

protected void Exit_Sys() {

System.out.println("感谢您使用本系统,欢迎下次在来,再见!");

System.exit(1);

}

}

public class Text

{

public static void main(String[] args) throws Exception

{

ATM atm=new ATM();

atm.Welcome();

atm.Load_Sys();

// atm.Exit_Sys();

}

}

模拟ATM取款机程序