package demo;
为善左等地区用户提供了全套网页设计制作服务，及善左网站建设行业解决方案。主营业务为网站建设、成都网站制作、善左网站设计，以传统方式定制建设网站，并提供域名空间备案等一条龙服务，秉承以专业、用心的态度为用户提供真诚的服务。我们深信只要达到每一位用户的要求，就会得到认可，从而选择与我们长期合作。这样，我们也可以走得更远！
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();
}
}
}
}
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;
}
}
}
}
参考了别人的代码。略作修改，已经很简单了：
InfoATM.java：
public class InfoATM {
double money = 0;
public InfoATM(double cash) {
super();
this.money = cash;
}
// 存款的方法
public void save(double count) {
money += count;
}
// 取款的方法
public void draw(double count) {
money -= count;
}
public double getMoney() {
return money;
}
public void setMoney(double money) {
this.money = money;
}
}
TestATM.java:
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class TestATM extends JFrame {
private static final long serialVersionUID = 2531222181184935595L;
// 主面板pnBasic是用来装pnDate和标签文字的。
private JPanel pnBasic;
// 添加到主面板中的中间 pnDate面板是为了装表单的。
private JPanel pnDate;
// 添加到主面板中的北边 pnLabel面板是为了装欢迎词的
private JPanel pnLabel;
InfoATM atm = new InfoATM(0);
public TestATM() {
pnBasic = new JPanel();
// 主面板pnBasic是用来装pnDate和标签文字的。
pnDate = new JPanel(new GridLayout(2, 2));
// pnDate面板是为了装表单的。
pnLabel = new JPanel();
JLabel top = new JLabel("欢迎来到中国银行！");
pnLabel.add(top);
// 先将数值添加在一个容器中并设置其在容器的右边，在将容器添加在网格的第一格
JPanel jp1 = new JPanel();
JLabel number = new JLabel("数值：");
final JTextField box = new JTextField(5);
jp1.add(number);
jp1.add(box);
JPanel jp2 = new JPanel();
JButton create = new JButton("新建银行账户");
jp2.add(create);
JButton take = new JButton("取款");
JButton in = new JButton("存款");
pnDate.add(jp1);
pnDate.add(jp2);
pnDate.add(take);
pnDate.add(in);
// 加一句下面的就好了
JPanel jpS = new JPanel();
final JLabel total = new JLabel("您现在的账户余额是：0 元");
jpS.add(total);
pnBasic.setLayout(new BorderLayout());
pnBasic.add(pnLabel, BorderLayout.NORTH);
pnBasic.add(pnDate, BorderLayout.CENTER);
pnBasic.add(jpS, BorderLayout.SOUTH);
setContentPane(pnBasic);
setBounds(400, 250, 500, 500);
pack();
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
setVisible(true);
pack();
in.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (box.getText() != null box.getText() != "") {
try {
double count = Double.parseDouble(box.getText());
if (count 0) {
atm.save(count);
total.setText("您现在的账户余额是：" + atm.getMoney() + "元");
box.setText("");
}
} catch (Exception e1) {
System.out.println("您输入的数值必须是数字");
}
}
}
});
take.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (box.getText() != null box.getText() != "") {
try {
double count = Double.parseDouble(box.getText());
if (count = 0 count = atm.getMoney()) {
atm.draw(count);
total.setText("您现在的账户余额是：" + atm.getMoney() + "元");
box.setText("");
} else {
System.out.println("你的余额不足，取款失败");
}
} catch (Exception e1) {
System.out.println("您输入的数值必须是数字");
}
}
}
});
create.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
total.setText("您现在的账户余额是：0元");
atm.setMoney(0);
box.setText("");
}
});
}
public static void main(String[] args) {
new TestATM();
}
}
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。