atm機java設計

1. 就是用java編寫一個ATM的程序

你是做實習還是做真實項目，如果是真實項目，估計夠嗆，因為ATM這些要用嵌入式開發，Java需要環境，而且效率低，如果僅僅是做練習，你可以用JFrame來實現 或者swing，其實說白這些不過是一些框架類庫，你安裝了這些框架類庫，然後用一個類去繼承窗體類，其他的和一些窗體軟體開發是一樣的，用的是事件機制，說白了就是觀察者設計模式。

2. 如何用Java編寫模擬ATM取款機的程序

import java.io.IOException;

/**
* ATM機類
*
* 查看余額
*
* 取款
*
* 存款
*
* 退出系統
*
*
*
*/

public class ATM {
static double yue = 1200.00;

public static void main(String[] arg) {
ATM localTest1 = new ATM();
localTest1.ATM_Operate();
}

/**
* ATM機的操作
*/
private void ATM_Operate() {
System.out.println("歡迎使用中國工商銀行ATM取款機");
System.out.println("1、查看余額 2、取款");
System.out.println("3、存款 0、退出");
System.out.print("請輸入您需要的服務:");
byte[] buffer = new byte[512];
try {
int count = System.in.read(buffer);// 返回實際讀取的位元組數
System.out.print("您輸入的是:");
for (int i = 0; i < count; i++) {
System.out.print("" + (char) buffer[i]);
}
if ((char) buffer[0] == '1') {
// 查看余額
System.out.println("您的余額是：￥" + yue + "元");
System.out.println();
ATM_Operate();
} else if ((char) buffer[0] == '2') {
// 取款
withdrawal();
System.out.println();
ATM_Operate();
} else if ((char) buffer[0] == '3') {
// 存款
deposit();
System.out.println();
ATM_Operate();
} else if ((char) buffer[0] == '0') {
// 退出
System.out.println("您已經成功退出系統，謝謝你的使用");
System.exit(0);
} else {
System.out.println("輸入不合法，請重新輸入");
System.out.println();
ATM_Operate();
}

} catch (IOException e) {
e.printStackTrace();
}
}

/**
* 取款
*
* @throws IOException
*/
private void withdrawal() throws IOException {
byte[] buffer = new byte[512];

System.out.print("請輸入您要取出的金額:￥");
int count2 = System.in.read(buffer);// 返回實際讀取的位元組數
System.out.print("您輸入的金額是:");
for (int i = 0; i < count2 - 1; i++) {
System.out.print("" + (char) buffer[i]);
}
System.out.println();
// 字元0 ~ 9對應ASCII值48 ~ 57
boolean flag = false;
for (int i = 0; i < count2 - 1; i++) {
if ((char) buffer[i] > 47 && (char) buffer[i] < 58) {
if (i == count2 - 2) {
flag = true;
}
} else {
// 輸入的字元不是數值
System.out.println("輸入不合法，請重新輸入");
withdrawal();
break;
}
}
System.out.println();
if (flag) {
System.out.print("您已成功取出￥:");
String num = "";
for (int i = 0; i < count2 - 1; i++) {
System.out.print("" + (char) buffer[i]);
num += (char) buffer[i];
}
yue -= Double.valueOf(num);
System.out.print("，現在余額￥:" + yue);

}
}

/**
* 存款
*
* @throws IOException
*/
private void deposit() throws IOException {
byte[] buffer = new byte[512];

System.out.print("請輸入您要存入的金額:￥");
int count2 = System.in.read(buffer);// 返回實際讀取的位元組數
System.out.print("您輸入的金額是:");
for (int i = 0; i < count2 - 1; i++) {
System.out.print("" + (char) buffer[i]);
}
System.out.println();
// 字元0 ~ 9對應ASCII值48 ~ 57
boolean flag = false;
for (int i = 0; i < count2 - 1; i++) {
if ((char) buffer[i] > 47 && (char) buffer[i] < 58) {
if (i == count2 - 2) {
flag = true;
}
} else {
// 輸入的字元不是數值
System.out.println("輸入不合法，請重新輸入");
withdrawal();
break;
}
}
System.out.println();
if (flag) {
System.out.print("您已成功存入￥:");
String num = "";
for (int i = 0; i < count2 - 1; i++) {
System.out.print("" + (char) buffer[i]);
num += (char) buffer[i];
}
yue += Double.valueOf(num);
System.out.print("，現在余額￥:" + yue);

}
}
}

3. JAVA模擬ATM機

import java.util.*;
public class ATM {
static int people=123456;
static int mima=123456;
static int yue=10000;
static Scanner in=null;
public ATM(int people,int mima){
this.mima=mima;
}
public static void main(String[] args) {
chongxindenglu();
int count=1;
while(count!=0){
System.out.println("1、查詢余額");
System.out.println("2、取款");
System.out.println("3、存款");
System.out.println("4、修改密碼");
System.out.println("5、重新登錄");
count=in.nextInt();
switch(count){
case 1: System.out.println(10000); System.out.println(); break;
case 2: quKuan(); break;
case 3: cunKuan(); break;
case 4: xiugai(); break;
case 5: chongxindenglu();
}
}
}
public static void quKuan(){
System.out.println("請輸入取款金額：");
int qukuanjine=in.nextInt();
if(qukuanjine>5000){
System.out.println("取款金額不能大於5000"+"\n");
}else{
if(qukuanjine%100!=0){
System.out.println("取款金額必須為100的整逗凳數倍"+"\n");
}else{
yue=yue-qukuanjine;
System.out.println("您取出了"+qukuanjine+"元虧指指，您現在的余額為："+yue+"元"+"\n");
}
}
}

public static void cunKuan(){
System.out.println("請輸入存款金額");
int cunkuanjine=in.nextInt();
if(cunkuanjine<0){
System.out.println("存款金額不能小於0");
}else{
yue=yue+cunkuanjine;
System.out.println("您已成功存入："+cunkuanjine+"元，您現在總余額為："+yue+"元"+"\n");
}
}

public static void xiugai(){
System.out.println("請輸入您的密碼：");
int mima1=in.nextInt();
if(mima1==mima){
System.out.println("請輸入新密碼：");
mima=in.nextInt();
System.out.println("您的銷配密碼已修改為："+mima+"\n");
}else{
System.out.println("密碼輸入錯誤："+"\n");
}
}

public static void chongxindenglu(){
in=new Scanner(System.in);
System.out.println("請輸入登錄帳號：");
int denglupeople=in.nextInt();
System.out.println("請輸入登錄密碼：");
int denglumima=in.nextInt();

if(denglupeople==people && denglumima==mima)
System.out.println("帳號登錄成功"+"\n");
else
System.out.println("密碼輸入錯誤，登錄失敗"+"\n");
}

}

4. 使用Java語言進行面向對象設計:ATM櫃員機模擬程序

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class AtmSystem extends JFrame implements ActionListener
{
private JPanel buttonPanel=new JPanel();
private JPanel area1Panel=new JPanel();
private JPanel area2Panel=new JPanel();
private JTextField note=new JTextField(33);
private JButton buttons[];
private JButton dot = new JButton(".");
private JButton doublezero = new JButton("00");
private JButton ok = new JButton("確定");
private JButton exit = new JButton("退出");
private JButton cancel = new JButton("取消");
private JButton change=new JButton("更正");
private JButton getmoney = new JButton("取款");
private JButton search = new JButton("查詢余額");
private JButton changekey = new JButton("修改密碼");
private JButton putmoney= new JButton("存款");;
private boolean flag0, flag1, flag2,flag3,flag4;
int status=0;
int k,s,k1;
String str1="\t歡迎使用ATM櫃員機!";
String str2="\t請輸入用戶名:";
String str3="\t請輸入密碼:";
String str4="\t請輸入取款金額:";
String str5="\t請輸入存款金額:";
String str6="\t請輸入新密碼:";
String str7="\t您的余額為:";
String str8="\t用戶名錯誤，請重新輸入:";
String str9="\t密碼錯誤，請重新輸入:";
String str10="\t余額不足，請重新輸入:";
String str11="\t密碼修改成功!";
String store1="",store2="";
double moneysum=10000;
double getMoney;
String username="123456";
String password="123456";
public AtmSystem()
{
super("ATM櫃員機");
Container container=getContentPane();
buttons=new JButton[10];
dot.addActionListener(this);
doublezero.addActionListener(this);
change.addActionListener(this);
cancel.addActionListener(this);
ok.addActionListener(this);
exit.addActionListener(this);
changekey.addActionListener(this);
putmoney.addActionListener(this);
getmoney.addActionListener(this);
search.addActionListener(this);
area2Panel.add(changekey);
area2Panel.add(putmoney);
area2Panel.add(getmoney);
area2Panel.add(search);
area2Panel.setLayout(new GridLayout(1,3));
container.add(area2Panel,BorderLayout.NORTH);
note.setText(str1);
note.setEditable(false);
area1Panel.add(note);
buttonPanel.setLayout(new GridLayout(4,4));
for(int count=0;count<buttons.length;count++)
{
buttons[count]=new JButton(""+count);
buttons[count].addActionListener(this);
buttonPanel.add(buttons[count]);

}
buttonPanel.add(doublezero);
buttonPanel.add(dot);
buttonPanel.add(change);
buttonPanel.add(cancel);
buttonPanel.add(ok);
buttonPanel.add(exit);
container.add(buttonPanel,BorderLayout.SOUTH);
container.add(area1Panel);
area1Panel.setVisible(true);
area2Panel.setVisible(false);
setSize(400,250);
setVisible(true);
}

public void actionPerformed(ActionEvent event)
{
JButton operation = (JButton) event.getSource();
if(operation==ok)
{
if(status==0)
{
note.setText(""+str2);
status=1;
}
else if(flag4==true)
{
area2Panel.setVisible(true);
area1Panel.setVisible(false);
flag4=false;
}
else if(status==1&&k==1)
{
note.setText(""+str3);
status=2;
k=0;
}
else if(status==1&&k==0)
{
note.setText(""+str8);
store1="";
}
else if(status==2&&k1==1)
{
k1=0;
area1Panel.setVisible(false);
area2Panel.setVisible(true);
status=3;
}
else if(status==2&&k1==0)
{
note.setText(""+str9);
store2="";
}
else if(status==3)
{
if(flag0==true)
{

getMoney=Double.valueOf(store1).doubleValue();
if(getMoney<moneysum)
{
area2Panel.setVisible(true);
area1Panel.setVisible(false);
flag0=false;
moneysum=moneysum-getMoney;
}
else
{
area2Panel.setVisible(false);
area1Panel.setVisible(true);
note.setText(""+str10);
store1="";
}
}
else if(flag1==true)
{
area2Panel.setVisible(true);
area1Panel.setVisible(false);
flag1=false;
}
else if(flag2==true)
flag2=false;
else if(flag3=true)
{
flag4=true;
note.setText(""+str11);
password=store2;
flag3=false;
}
}

}
else if(operation==cancel)
{
if(status==1)
{
note.setText(""+str1);
status=0;
store1="";
store2="";
}
else if(status==2)
{
note.setText(""+str2);
status=1;
store1="";
store2="";
}
else if(status==3&&flag2)
{
area1Panel.setVisible(false);
area2Panel.setVisible(true);
flag2=false;
store1="";
store2="";
}
else if(status==3&&flag0)
{
area1Panel.setVisible(false);
area2Panel.setVisible(true);
flag0=false;
store1="";
store2="";
}
else if(status==3&&flag3)
{
area1Panel.setVisible(false);
area2Panel.setVisible(true);
flag3=false;
store1="";
store2="";
}
}
else if(operation==change)
{
if(status==1)
{
note.setText(""+str2);
store1="";
store2="";
}
else if(status==2)
{
note.setText(""+str3);
store1="";
store2="";
}
else if(status==3&&flag2)
{
note.setText(""+str5);
store1="";
store2="";
}
else if(status==3&&flag0)
{
note.setText(""+str4);
store1="";
store2="";
}
else if(status==3&&flag3)
{
note.setText(""+str6);
store1="";
store2="";
}
}
else if(operation==doublezero&&status==3&&flag0==true)
{
note.setText(note.getText()+"00");
}
else if(operation==dot&&status==3&&flag0==true)
{
note.setText(note.getText()+".");
}
else if(operation==getmoney)
{
note.setText(""+str4);
area2Panel.setVisible(false);
area1Panel.setVisible(true);
store1="";
flag0=true;
}
else if(operation==search)
{
note.setText(""+str7+moneysum);
area2Panel.setVisible(false);
area1Panel.setVisible(true);
flag1=true;
}
else if(operation==putmoney)
{
note.setText(""+str5);
area2Panel.setVisible(false);
area1Panel.setVisible(true);
flag2=true;
}
else if(operation==changekey)
{
note.setText(""+str6);
area2Panel.setVisible(false);
area1Panel.setVisible(true);
store2="";
flag3=true;
}
else if(operation==exit)
{
note.setText(""+str1);
area2Panel.setVisible(false);
area1Panel.setVisible(true);
status=0;
flag0=flag1=flag2=flag3=flag4=false;
store1="";
store2="";
k=k1=s=0;
}

else if(status==1||(status==3&&flag2==true)||(status==3&&flag0==true))
{
for(int count=0;count<buttons.length;count++)

if (operation== buttons[count])
{
note.setText(note.getText() + count);
store1+=event.getActionCommand();
}
user(store1);
}

else if(status==2||(status==3&&flag3==true))
{
for(int count=0;count<buttons.length;count++)

if (operation== buttons[count])
{
note.setText(note.getText()+ "*");
store2+=event.getActionCommand();
}
key(store2);
}

}
public void user(String load)
{

if(username.equals(load))
{
k=1;
s=1;
}

}
public void key(String load)
{
if(password.equals(store2))
{
k1=1;
}

}
public static void main(String args[])
{
AtmSystem application=new AtmSystem();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

5. java atm機代碼

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("密碼錯誤，請取卡");
break;
}
System.out.println("請輸入你的密碼");
String password = sc.next();

if(password.equals("111111")){
Boolean moneyflag = true;
while(moneyflag){
System.out.println("請輸入金額");
int number = sc.nextInt();
if(number >= 0 && number <= 1000 && number % 100 == 0){
System.out.println("用戶取了" + number + "元。交易完成");
moneyflag = false;
}else{
System.out.println("請重新輸入金額");
}
}
break;
}else{
continue;
}

}
}

}

6. 用java做一個簡易的ATM機具體流程在下面

代碼如下

packageBaiD;

importjava.util.Scanner;

publicclassATM{
	/*1提示請輸入密碼然後直接進入下一步。密碼6位限制（限制方法用「最小大於100000最大小於999999」這樣限制）
	2.提示密碼正確還是錯誤密碼直接弄成「123456」錯誤返回上一步循環方法用for循環。
	3.密碼輸入正確後進入下一步提示5個選項（1.余額查詢「基礎10000」2.取款3存款4.退出）
	4.進行取款或者存款之後要回到第三步重新選擇（余額和取款存款相關聯）
	備註：用鍵盤輸入的方法用scanner*/
	
	privatestaticintmoney=10000;//全局變數余額默認10000
publicstaticvoidmain(Stringargs[])
{
	for(;;){//for循環，有意思嗎？
System.out.println("請輸入密碼：");
	Scannerinput=newScanner(System.in);
	intpw=input.nextInt();
	if(Checkpw(pw)){
		System.out.println("密碼正確。");
		Next();
	}
		
	elseSystem.out.println("密碼錯誤！");
	}
	
}
publicstaticbooleanCheckpw(intpw)
{
	if(pw==123456)returntrue;//固定密碼就不需要限制位數了，反正不符合就錯
	else
	returnfalse;
}

	publicstaticvoidNext(){
		do{		
		System.out.println("請選擇你需要的功能：");
		System.out.println("1.余額查詢2.取款3.存款4.退出");
		intvalue=newScanner(System.in).nextInt();
		switch(value){
		case1://查詢余額
			System.out.println("您的余額為"+money+"元");
			break;
		case2://取款
			System.out.println("請輸入取款金額:");
			
			intgetnum=newScanner(System.in).nextInt();
			if(getnum<0)System.out.println("輸入金額有誤!");
			elseif(getnum>money)System.out.println("余額不足.");
			else{money=money-getnum;System.out.println("取款成功,余額為"+money);}			

			break;
		case3://存款
			System.out.println("請輸入存款金額:");
			
			intpushnum=newScanner(System.in).nextInt();
			if(pushnum<0)System.out.println("輸入金額有誤!");
			else{money=money+pushnum;System.out.println("存款成功，余額為"+money);}	
			break;
		case4://退出
			System.out.println("謝謝使用！");
			System.exit(0);
			break;
		
		default:
			
			System.out.println("輸入有誤");
			break;
		}
		
		
	}while(true);
		}

}

2、運行效果