ATM取款机实现 （1）ATM客户端需要登陆，用户输入正确的银行卡号和密码，系统核对无误后才能进行操作 （2）登陆后，用户可以进行查询余额、取款、和修改密码的操作； （3）取款操作，有操作结果提示，如“操作成功”或“余额不足，操作失败” （4）密码输入错误3次将提示“对不起，卡已经被没收” （5）使用控制台程序完成本应用
定义三个类ATM、Input、Operation和一个测试类 Testdocuments
package com.iflytek;
public class ATM {
private double balance;
private double money;
private int cardsNum;
private int passWord;
private String name;
private int inputNum;
private int inputWord;
public double getBalance() {
return balance;
}
public void setBalance(
double balance) {
this.balance = balance;
}
public double getMoney() {
return money;
}
public void setMoney(
double money) {
this.money = money;
}
public int getCardsNum() {
return cardsNum;
}
public void setCardsNum(
int cardsNum) {
this.cardsNum = cardsNum;
}
public int getPassWord() {
return passWord;
}
public void setPassWord(
int passWord) {
this.passWord = passWord;
}
public int getInputNum() {
return inputNum;
}
public void setInputNum(
int inputNum) {
this.inputNum = inputNum;
}
public int getInputWord() {
return inputWord;
}
public void setInputWord(
int inputWord) {
this.inputWord = inputWord;
}
public String
getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
package com.iflytek;
import java.util.Scanner;
public class Input {
public void out(){
System.
out.println(
"------------------------------");
System.
out.println(
"欢迎使用模拟自动取款机程序.");
System.
out.println(
"------------------------------");
System.
out.println(
"1.>取款.\n2.>查询信息.\n3.密码设置.\n4.退出系统.");
}
public boolean
input(
int card,
int password){
for (
int i =
0; i <
3; i++) {
System.
out.println(
"请输入您的信用卡号：");
Scanner sc1 =
new Scanner(System.
in);
int inputCard = sc1.nextInt();
System.
out.println(
"请输入您的密码：");
Scanner sc2 =
new Scanner(System.
in);
int inputWord = sc2.nextInt();
if (card == inputCard && password == inputWord) {
return true;
}
else {
if (i ==
2) {
System.
out.println(
"对不起，输入错误已达三次，您的卡已经被没收");
}
else {
System.
out.println(
"您的卡号或密码输入有误.");
}
}
}
return false;
}
}
package com.iflytek;
import java.util.Scanner;
public class Operation {
Input input =
new Input();
public void choose(ATM atm) {
input.
out();
System.
out.println(
"请选择您要操作的项目（1-4）：");
Scanner sc1 =
new Scanner(System.
in);
int num = sc1.nextInt();
switch (num) {
case 1:
getMoney(atm);
break;
case 2:
query(atm);
break;
case 3:
setPasswrod(atm);
break;
case 4:
exit();
break;
default:
error();
break;
}
}
public boolean
getMoney(ATM atm){
System.
out.println(
"请输入您要取的数目：");
for(
int i=
0;i<
3;i++){
Scanner sc =
new Scanner(System.
in);
atm.setMoney(sc.nextInt());
if(atm.getMoney() > atm.getBalance()){
System.
out.println(
"超过已有的钱数，请重新输入您要取的数目：");
}
else{
atm.setBalance(atm.getBalance()-atm.getMoney());
System.
out.println(
"取款成功，请收好您的钱");
return true;
}
}
return false;
}
public void query(ATM atm){
System.
out.println(
"客户账号："+atm.getCardsNum());
System.
out.println(
"客户名："+atm.getName());
System.
out.println(
"客户账户余额："+atm.getBalance());
}
public void setPasswrod(ATM atm){
System.
out.println(
"请重新输入密码：");
Scanner sc1 =
new Scanner(System.
in);
int num = sc1.nextInt();
atm.setPassWord(num);
System.
out.println(
"您的密码为："+
"\n"+atm.getPassWord());
}
public void exit(){
System.
out.println(
"感谢您使用本系统，欢迎下次再来，再见！");
System.exit(
0);
}
public void error(){
System.
out.println(
"输入的数据有误");
}
}
package com.iflytek;
public class Testdocumets {
public static void main(String[] args) {
ATM atm =
new ATM();
atm.setBalance(
2000);
atm.setCardsNum(
10086);
atm.setPassWord(
10086);
atm.setName(
"ssss");
Input input =
new Input();
input.
out();
boolean result = input.input(atm.getCardsNum(), atm.getPassWord());
Operation operation =
new Operation();
if (result) {
operation.choose(atm);
}
}
}
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