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 demoimport 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。