Java编写的模拟ATM取款机程序/*** @version 1.0
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* @author Devil_Angel
* 该程序的功能为实现模拟银行ATM自动取款机提款,查询等功能.
*
*/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(counter3);
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(counter3);
}
/**********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取款机工作流程 import java.util.Scanner;public class Atm {
public Atm() {
}
public static void main(String[] args) {
// TODO code application logic here
Scanner sc = new Scanner(System.in);
int password = 0;
int count = 0;
int choice = 0;
int type = 0;
int input = 0;
int acount = 1000;
boolean exit = false;
int flag = 0;
do{
System.out.println("请输入您的密码：");
password = sc.nextInt();
count++;
}while(password != 12345 count3);
if(password == 12345){
//密码正确继续后面的操作。
do{
System.out.println("请选择您的操作，1.查询 2.取款");
choice = sc.nextInt();
switch(choice){
case 1:
do{
System.out.println("请选择帐户类型：1. 美元 2. 人民币");
type = sc.nextInt();
if(type == 1){
System.out.println("You have $"+acount+"!");
}else if(type == 2){
System.out.println("您有"+acount+"圆!");
}else{
System.out.println("类型选择错误，请重新选择！");
}
System.out.println("1.继续 2.离开");
flag = sc.nextInt();
if(flag == 1){
exit = false;
}else{
exit = true;
}
}while(type!=1 type!=2);
break;
case 2: do{
System.out.println("请选择帐户类型：1. 美元 2. 人民币");
if(type == 1){
System.out.println("Please input number of your money!");
input = sc.nextInt();
if(input acount){
System.out.println("You have not enough money!");
}else{
System.out.println("You take care of your money!");
}
System.out.println("1.continue 2.exit");
flag = sc.nextInt();
if(flag == 1){
exit = false;
}else{
exit = true;
}
}else if(type == 2){
System.out.println("请输入您要取的金额!");
input = sc.nextInt();
if(input acount){
System.out.println("您的余额不足!");
}else{
System.out.println("请妥善保管您的钱!");
acount = acount - input;
}
System.out.println("1.继续 2.离开");
flag = sc.nextInt();
if(flag == 1){
exit = false;
}else{
exit = true;
}
}else{
System.out.println("类型选择错误，请重新选择！");
}
}while(type!=1 type!=2);
break;
default: System.out.println("类型选择错误，请重新选择！");
}
}while(choice!=1 choice!=2 || exit == false);
}else{
//密码错误，退出。
System.out.println("三次密码错误，吞卡！");
}
}
}
package demo;
import java.util.Scanner;
public class Test3 {
public static void main(String[] args) {
Scanner scanner =new Scanner(System.in);
int cnt=3;
String username = null;
String password = null;
double money = 1000;
String targetName = "admin33";
double targetMoney = 1000;
while(true){
if(username!=nullpassword!=null){
if("admin".equals(username) "123".equals(password)){
System.out.println("欢迎光临");
while(true){
System.out.println("请选择您的操作 1 取钱 2 存钱 3 转账 4 查询 5 退出 ");
int n = scanner.nextInt();
if(n==1){//取钱
System.out.println("请输入金额");
int getter = scanner.nextInt();
if(getter=0){
if(getter=5000){
if(getter=money){
money-=getter;
}else{
System.out.println("余额不足");
}
}else{
System.out.println("单笔只能取5000及以下");
}
}else{
System.out.println("银行不到给");
}
}else if(n==2){//存钱
System.out.println("请输入金额");
int save = scanner.nextInt();
if(save=0){
money+=save;
}
}else if(n==3){//转账
System.out.println("请输入目标账户");
String target = scanner.next();
if(target.equals(targetName)){
System.out.println("请输入金额");
int getter = scanner.nextInt();
if(getter=0){
if(getter=5000){
if(getter=money){
money-=getter;
targetMoney+=getter;
}else{
System.out.println("余额不足");
}
}else{
System.out.println("单笔只能取5000及以下");
}
}else{
System.out.println("银行不到给");
}
}
}else if(n==4){//查询
System.out.println(money);
}else if(n==5){//退出
System.exit(0);
}else{
System.out.println("没有该项服务");
}
}
}else{
cnt--;
System.out.println("输入错误，您还有"+cnt+"次机会");
username=null;
password=null;
if(cnt=0){
System.out.println("对不起，您的账号被冻结，请到最近的营业厅解除冻结");
System.exit(0);
}
}
}else{
System.out.println("请输入您的账号");
username = scanner.next();
System.out.println("请输入您的密码");
password = scanner.next();
}
}
}
}
很简单的例子，我把代码贴出来吧
import java.util.Scanner;
public class ATM {
/**
* @param args
*/
public static void main(String[] args) {
Scanner in = null;
int result;
double drawMoney;
double depositMoney;
Account account = new Account();
while (true) {
System.out.println("☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆(ABC)中国农业银行ATM自动存取款机☆☆☆☆☆☆☆☆☆☆☆☆☆");
System.out.println("\n\t\t\t\t1.存款业务");
System.out.println("\n\t\t\t\t2.取款业务");
System.out.println("\n\t\t\t\t3.查询余额");
System.out.println("\n\t\t\t\t4.退出ATM系统");
System.out.println("\n☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆中国农业银行欢迎您的使用☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆");
in = new Scanner(System.in);
switch (in.nextInt()) {
case 1:
System.out.println("请输入您的存款数额！");
depositMoney = in.nextDouble();
if(depositMoney 0)
System.out.println("您的输入无效，请重新输入!");
result = account.deposit(depositMoney);
if(result == 0){
System.out.println("存款业务完成，是否显示余额？Y/N");
if("Y".equalsIgnoreCase(in.next())){
System.out.println("您当前的余额为："+account.checkCurrent());
}else {
break;
}
}else {
System.out.println("无法完成交易！");
break;
}
break;
case 2:
System.out.println("请输入您的取款数额！");
drawMoney = in.nextDouble();
if (drawMoney 0) {
System.out.println("您的输入无效，请重新输入!");
}
result = account.withDraw(drawMoney);
if (result == 0) {
System.out.println("存款业务完成，是否显示余额？Y/N");
if("Y".equalsIgnoreCase(in.next())){
System.out.println("您当前的余额为："+account.checkCurrent());
}else {
break;
}
} else {
System.out.println("无法完成交易！");
break;
}
case 3:
System.out.println("您当前的余额为："+account.checkCurrent());
break;
case 4:
break;
default:
break;
}
}
}
}
public class Account {
private double currentMoney;//当前余额
public double getCurrentMoney() {
return currentMoney;
}
public void setCurrentMoney(double currentMoney) {
if (currentMoney 0) {
this.currentMoney = currentMoney;
}
}
/**
* 取款业务
* @param drawMoney
* @return 0代表成功，1代表失败
*/
public int withDraw(double drawMoney) {
if (currentMoney 0 drawMoney = currentMoney) {
currentMoney -= drawMoney;
} else {
System.out.println("您的余额已不足！");
return 1;
}
return 0;
}
/**
* 存款业务
* @param depositMoney
* @return 0代表成功，1代表失败
*/
public int deposit(double depositMoney) {
if (depositMoney 0) {
currentMoney += depositMoney;
return 0;
}else {
System.out.println("您提交的存款为负数，无法完成存款交易");
return -1;
}
}
/**
* 查询余额业务
* @return
*/
public double checkCurrent() {
return currentMoney;
}
}
我现写的： import java.util.Scanner;public class ATM {
private static String theName = "admin";
private static String thePassword = "123456";
private static int balance = 10000;
public static void getBalance(){
System.out.println("当前余额：" + balance);
}
public static void drawMoney(Scanner sc){
int money = 0;
System.out.println("请输入取款金额：");
money = sc.nextInt();
String type = "";
if (balance 0) {
if (balance = money) {
if (money = 5000) {
balance = balance - money;
type = "请在30秒内提取现金...\n剩余余额："+balance;
} else if (money = 0) {
type = "金额错误";
} else {
type = "超出最大限制金额";
}
} else {
type = "超出最大余额";
}
} else {
type = "余额不足";
}
System.out.println(type);
}
public static void bankMoney(Scanner sc){
int money = 0;
System.out.println("请输入存储金额：");
money = sc.nextInt();
String type = "";
if (money 0) {
balance = balance + money;
type = "存储成功，现有余额：" + balance;
} else {
type = "存储金额不能为负";
}
System.out.println(type);
}
public static void updatePass(Scanner sc){
String oldPass = "";
String newPass1 = "";
String newPass2 = "";
while(true){
System.out.println("请输入原密码：");
oldPass = sc.next();
if (oldPass.equals(thePassword)) {
break;
} else {
System.out.println("密码错误，请重新输入");
}
}
while(true){
System.out.println("请输入新密码");
newPass1 = sc.next();
System.out.println("再次输入");
newPass2 = sc.next();
if (newPass1.equals(newPass2)) {
if (!isSame(newPass1)) {
thePassword = newPass1;
System.out.println("修改成功");
break;
} else {
System.out.println("所有字符不能相同，重新输入");
}
} else {
System.out.println("两次输入不一致，重新输入");
}
}
}
public static boolean isSame(String string){
boolean bool = false;
for (int i = 0; i string.length() - 1; i++) {
char char1 = string.charAt(i);
for (int j = i + 1; j string.length(); j++) {
char char2 = string.charAt(j);
if (char1 == char2) {
bool = true;
break;
}
}
}
return bool;
}
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(true){
String name = "";
String password = "";
System.out.println("请输入账号：");
name = sc.next();
System.out.println("请输入密码：");
password = sc.next();
if (name.equals(theName) password.equals(thePassword)) {
break;
} else {
System.out.println("账号或密码错误，请重新输入!");
}
}
while(true){
int operate = 0;
System.out.println("请选择你要进行的操作：\n1、查询 2、取款 3、存款 4、修改密码 0、退出");
operate = sc.nextInt();
if (0 == operate) {
System.out.println("谢谢使用！");
break;
} else if (1 == operate) {
getBalance();
} else if (2 == operate) {
drawMoney(sc);
} else if (3 == operate) {
bankMoney(sc);
} else if (4 == operate) {
updatePass(sc);
}
}
}
}
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(counter3);
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(counter3);
}
/**********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。