java编写atm

1. atm机的java怎么写啊

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。

2. java atm机代码

package arraylist;

import java.util.Scanner;

public class AtmDemo
{

public static void main(String[] args)
{
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
Boolean flag = true;
int times = 0;
while(flag){
times++;
if(times == 4){
System.out.println("密码错误，请取卡");
break;
}
System.out.println("请输入你的密码");
String password = sc.next();

if(password.equals("111111")){
Boolean moneyflag = true;
while(moneyflag){
System.out.println("请输入金额");
int number = sc.nextInt();
if(number >= 0 && number <= 1000 && number % 100 == 0){
System.out.println("用户取了" + number + "元。交易完成");
moneyflag = false;
}else{
System.out.println("请重新输入金额");
}
}
break;
}else{
continue;
}

}
}

}

3. java编写的模拟ATM取款机程序

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);
}
}

}
}

4. 用java做一个简易的ATM机具体流程在下面

代码如下

packageBaiD;

importjava.util.Scanner;

publicclassATM{
	/*1提示请输入密码然后直接进入下一步。密码6位限制（限制方法用“最小大于100000最大小于999999”这样限制）
	2.提示密码正确还是错误密码直接弄成“123456”错误返回上一步循环方法用for循环。
	3.密码输入正确后进入下一步提示5个选项（1.余额查询“基础10000”2.取款3存款4.退出）
	4.进行取款或者存款之后要回到第三步重新选择（余额和取款存款相关联）
	备注：用键盘输入的方法用scanner*/
	
	privatestaticintmoney=10000;//全局变量余额默认10000
publicstaticvoidmain(Stringargs[])
{
	for(;;){//for循环，有意思吗？
System.out.println("请输入密码：");
	Scannerinput=newScanner(System.in);
	intpw=input.nextInt();
	if(Checkpw(pw)){
		System.out.println("密码正确。");
		Next();
	}
		
	elseSystem.out.println("密码错误！");
	}
	
}
publicstaticbooleanCheckpw(intpw)
{
	if(pw==123456)returntrue;//固定密码就不需要限制位数了，反正不符合就错
	else
	returnfalse;
}

	publicstaticvoidNext(){
		do{		
		System.out.println("请选择你需要的功能：");
		System.out.println("1.余额查询2.取款3.存款4.退出");
		intvalue=newScanner(System.in).nextInt();
		switch(value){
		case1://查询余额
			System.out.println("您的余额为"+money+"元");
			break;
		case2://取款
			System.out.println("请输入取款金额:");
			
			intgetnum=newScanner(System.in).nextInt();
			if(getnum<0)System.out.println("输入金额有误!");
			elseif(getnum>money)System.out.println("余额不足.");
			else{money=money-getnum;System.out.println("取款成功,余额为"+money);}			

			break;
		case3://存款
			System.out.println("请输入存款金额:");
			
			intpushnum=newScanner(System.in).nextInt();
			if(pushnum<0)System.out.println("输入金额有误!");
			else{money=money+pushnum;System.out.println("存款成功，余额为"+money);}	
			break;
		case4://退出
			System.out.println("谢谢使用！");
			System.exit(0);
			break;
		
		default:
			
			System.out.println("输入有误");
			break;
		}
		
		
	}while(true);
		}

}

2、运行效果

5. Java编程实现程序用于模拟ATM取款机。

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!=null&&password!=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();
}
}
}
}

6. 求高手用JAVA编写一个模拟ATM机取款业务需求如下：

楼主您好，编码如下，直接运行即可：

import java.util.Scanner;

public class AtmGetMoney {

public static void main(String[] args) {
String password = "111111";
int count = 0;
int a = 0;
while(count<3){
System.out.println("请输入银行卡密码： ");
Scanner scan = new Scanner(System.in);
String passwd = scan.nextLine();
while(passwd.equals(password)){
System.out.println("请输入取款金额： ");
int amount = scan.nextInt();
if(amount%100 == 0 && amount <= 1000){
System.out.println("您的取款金额为： "+amount);
System.out.println("交易完成，请读卡！");
a = a + 1;
break;
}
else {
System.out.println("只能提取100元纸币，要求最低0，最高1000！");
continue;
}
}
if (a == 1){
break;
}
else if (count < 2) {
System.out.println("银行卡密码错误");
count = count + 1;
continue;
}
else {
System.out.println("密码错误请读卡");
break;
}

}

}

}