ATM取款机系统用JAVA怎么做

Python017

ATM取款机系统用JAVA怎么做,第1张

这里有个模拟

用户:blucastle ,密码: 123

import java.util.Scanner

public class ATM1 {

Scanner sc = new Scanner(System.in)

private String name = "blucastle"

private double password = 123

private double money = 500

public void aloha(){

System.out.println("***********************")

System.out.println("* *")

System.out.println("* 欢迎使用ATM *")

System.out.println("* *")

System.out.println("* 制作人:blucastle*")

System.out.println("* *")

System.out.println("* *")

System.out.println("************************")

System.out.println("请输入用户名:")

String s = sc.next()

if(s.equals("blucastle")) {

System.out.println("请输入密码:")

int ss = sc.nextInt()

if(ss == 123) {

land()

}else{

System.out.println("密码错误,系统退出")

System.exit(0)

}

}else{

System.out.println("用户名错误,系统退出")

System.exit(0)

}

}

//登陆页面

public void land(){

System.out.println("请选择操作界面:1取款,2存款,3查询,4转账,5退出")

int a = sc.nextInt()// 请加入此句

switch(a){

case 1 : // 去掉‘’ 因为a 为int型。

get()

break

case 2 :

set()

break

case 3 :

query()

break

case 4 :

divert()

break

case 5 :

SetOut()

break

}

}

//取款

public void get(){

System.out.println("请输入取款金额:")

int a = sc.nextInt()

if(a>money){

System.out.println("余额不足!")

}else{

money-=a

System.out.println("当前余额为:"+money)

land()

}

}

//存款

public void set(){

System.out.println("请输入存款金额:")

int a = sc.nextInt()

money+=a

System.out.println("当前余额为:"+money)

land()

}

//查询

public void query(){

System.out.println("当前余额为:"+money)

land()

}

//转账

public void divert(){

System.out.println("该功能站未开放!")

land()

}

//退出

public void SetOut(){

System.exit(0)

}

public static void main(String[] args) {

ATM1 atm = new ATM1()

atm.aloha()

}

}

package demo

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

}

/*得到剩余的钱的数目*/

protected void set_Deposit(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.>存款."+"\n"+

" 3.>查询信息."+"\n"+

" 4.>密码设置."+"\n"+

" 5.>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

Welcome()

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(1-5):")

num=br.read() //num为ASICC码转换的整数

switch(num) {

case 49: BetBalance()break

case 50: Deposit()break

case 51: Inqu_Info()break

case 52: Set_Password()break

case 53: Exit_Sys() break

}

System.exit(1)

}

/**********信息查询

* @throws Exception **********/

protected void Inqu_Info() throws Exception {

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

act.get_Code()+"\n"+

act.get_Name()+"\n"+

act.get_Money()+"\n"+

"-----------------------")

Welcome()

SysOpter()

}

/**********取款**********/

public void BetBalance() throws Exception

{

String str=null,str1

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

int count=0//取款错误超过3次自动退出

do {

System.out.println("请输入您要取的数目:")

str=br.readLine()

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

System.out.println(str1)

if(Double.parseDouble(str)>Double.parseDouble(str1)) {

count++

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

if(count>=3){

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

Exit_Sys()

}

}

else {

/*操作成功*/

act.set_Balance(Double.parseDouble(str))

System.out.println("取款成功,请收好您的钱.")

Welcome()

SysOpter()

}

}while(true)

}

/*******存款********/

public void Deposit() throws Exception{

String str=null

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

do {

System.out.println("请输入您要存的数目:")

str=br.readLine()

/*操作成功*/

act.set_Deposit(Double.parseDouble(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.Load_Sys()

// atm.Exit_Sys()

}

}

卡号:00000 密码123456 默认50000金额。简单版本的存取款。