JAVA基础模拟ATM系统

ATM系统

题目

封装类

ATM类

package com.cpd.atmTest.entity;

import com.cpd.atmTest.entity.Card;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class Atm {
    private String name; // 名字
    private String num; // 编号
    private boolean type; // 是否继续循环

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getNum() {
        return num;
    }

    public void setNum(String num) {
        this.num = num;
    }

    public boolean isType() {
        return type;
    }

    public void setType(boolean type) {
        this.type = type;
    }

}

Card类

package com.cpd.atmTest.entity;

public class Card {
    private String account;  //账号
    private String password; //密码
    private double balance;  //余额
    private String bankName; //银行卡名字
    private String name;     //持卡人姓名

    public String getAccount() {
        return account;
    }

    public void setAccount(String account) {
        this.account = account;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public double getBalance() {
        return balance;
    }

    public void setBalance(double balance) {
        this.balance = balance;
    }

    public String getBankName() {
        return bankName;
    }

    public void setBankName(String bankName) {
        this.bankName = bankName;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Card(String account, String password, double balance, String bankName, String name) {
        this.account = account;
        this.password = password;
        this.balance = balance;
        this.bankName = bankName;
        this.name = name;
    }

    public Card() {
    }

    @Override
    public String toString() {
        return "Card{" +
                "account='" + account + '\'' +
                ", password='" + password + '\'' +
                ", balance=" + balance +
                ", bankName='" + bankName + '\'' +
                ", name='" + name + '\'' +
                '}';
    }
}

ATM的接口方法

package com.cpd.atmTest.dao;

import com.cpd.atmTest.entity.Card;

public interface AtmDao {

    //1.余额查询  inquireMoney
    public void inquireMoney();
    //2.取款 takeMoney
    public void takeMoney();
    //3.存款 saveMoney
    public void saveMoney();
    //4.转账 turnMoney
    public void turnMoney();
    //5.打印 print
    public void print();
    //6.退卡 checkCard
    public void checkCard();
    //7.查询转账信息 queryTurnI
    public void queryTurnI();
}

ATM的接口方法实现ATMimpl

package com.cpd.atmTest.impl;

import com.cpd.atmTest.entity.CardInfo;
import com.cpd.atmTest.dao.AtmDao;
import com.cpd.atmTest.entity.Card;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.*;

public class AtmDaoImpl implements AtmDao{
    // 获取银行卡信息的List,Map,Set集合
    private List<Card> cardList = null;
    private Map<String, Card> cardMap = null;
    private Set<Card> cardSet = null;
    private Card card = null;
    // ATM机构造方法
    public AtmDaoImpl() {
        cardInfo();
    }
    //存储账号所有操作信息
    List<String> AllIn=new ArrayList<>();
    //存储转账信息
    List<String> OutIn=new ArrayList<>();
    //扫描仪对象
    Scanner scanner = new Scanner(System.in);
    // 初始化银行卡信息
    public void cardInfo() {
        CardInfo cardInfo = new CardInfo();
        cardList = cardInfo.getCardInfo();
        cardMap = cardInfo.getCardInfoMap();
        cardSet = cardInfo.getCardInfoSet();
    }
    public void login(){
        if(card!=null){
            //显示菜单
            showMenu();
        }
        System.out.println("请输入银行卡账号：");
        String inaccount=scanner.next();
        boolean cz=true;
        //判断卡号是否存在
        for (String key : cardMap.keySet()) {
            if(inaccount.equals(key)){
                card=cardMap.get(key);
                System.out.println("请输入银行卡密码：");
                String inpassword=scanner.next();
                cz=false;
                //判断密码是否正确
                if(inpassword.equals(card.getPassword())){
                    //将登录信息存入Alllist
                    String str="户主："+card.getName()+"   账号："+card.getAccount();
                    AllIn.add(str);
                    OutIn.add(str);
                    //显示菜单
                    showMenu();
                }else {
                    System.out.println("密码错误，请重新输入");
                    login();
                }
            }else{//重新登录
                continue;
            }
        }
        if (cz){
            System.out.println("账号不存在");
            login();
        }
    }

    // 显示主菜单
    public void showMenu() {
        // 4、显示主菜单。
        System.out.println("***********************************");
        System.out.println("*******请输入你想要操作类型*******");
        System.out.println("******1.余额查询  2.取款***********");
        System.out.println("******3.存款        4.转账***********");
        System.out.println("******5.打印        6.退卡***********");
        System.out.println("******7.查询转账信息**************");
        System.out.println("**********************************");
    }
    @Override
    public void inquireMoney() {
        //将当前操作存入Alllist
        String str="查询余额————>当前账户余额查询"+card.getBalance();
        AllIn.add(str);
        System.out.println("当前账户余额查询"+card.getBalance());
    }

    @Override
    public void takeMoney() {
        System.out.println("请输入取款金额:");
        double outMoney=scanner.nextDouble();
        if(outMoney>=0&&outMoney<=card.getBalance()){
            card.setBalance(card.getBalance()-outMoney);
            //将当前操作存入Alllist
            String str="取款————>取款前："+(card.getBalance()+outMoney)+"  取款:"+outMoney+"  当前账户余额查询:"+card.getBalance();
            AllIn.add(str);
            System.out.println("当前账户余额查询"+card.getBalance());
        }else {
            System.out.println("取款金额错误或余额不足:");
            takeMoney();
        }
    }

    @Override
    public void saveMoney() {
        System.out.println("请输入存款金额:");
        double inMoney=scanner.nextDouble();
        if(inMoney>=0){
            card.setBalance(card.getBalance()+inMoney);
            //将当前操作存入Alllist
            String str="存款————>存款前："+(card.getBalance()-inMoney)+"  存款:"+inMoney+"  当前账户余额查询:"+card.getBalance();
            AllIn.add(str);
            System.out.println("当前账户余额查询"+card.getBalance());
        }else {
            System.out.println("存款金额输入错误:");
            saveMoney();
        }
    }

    @Override
    public void turnMoney() {
        System.out.println("请输入转账银行卡账号：");
        String turnaccount=scanner.next();
        boolean cz=true;
        if(turnaccount.equals(card.getAccount())){
            System.out.println("不能给自己转账！！！！");
            cz=false;
            turnMoney();
        }else {
            //判断卡号是否存在
            for (String key : cardMap.keySet()) {
                if(turnaccount.equals(key)){
                    Card turncard=cardMap.get(key);
                    System.out.println("请输入转账金额：");
                    double turnMoney=scanner.nextDouble();
                    cz=false;
                    //判断密码是否正确
                    if(turnMoney>=0&&turnMoney<=card.getBalance()){
                        card.setBalance(card.getBalance()-turnMoney);
                        turncard.setBalance(turncard.getBalance()+turnMoney);
                        //将当前操作存入Alllist ，OUtin
                        String str="转账————>转账前："+(card.getBalance()+turnMoney)+"  转账:"+turnMoney+"  当前账户余额查询:"+card.getBalance()+"  转账户主:"+turncard.getName()+"  转账账户:"+turncard.getAccount();
                        AllIn.add(str);
                        OutIn.add(str);
                        System.out.println("当前账户余额查询"+card.getBalance());
                    }else {
                        System.out.println("转账金额错误或余额不足:");
                        turnMoney();
                    }
                }else{//重新登录
                    continue;
                }
            }
        }
        if (cz){
            System.out.println("账号不存在");
            turnMoney();
        }
    }

    @Override
    public void print() {
        System.out.println("文件存放路径:C:\\m.txt");
        // 打开一个文件
        File file = new File("C:\\m.txt");
        if (file.exists()) {//判断文件是否存在，存在删除
            file.delete();
        }

        try {
            FileWriter fw = new FileWriter(file);;
           for (String str:AllIn){
               fw.write(str+"\n");
               fw.write("--------------------------------------"+"\n");
               fw.flush();
           }

        } catch (IOException e) {

            e.printStackTrace();
        }
    }

    @Override
    public void checkCard() {
        System.out.println("当前账户信息："+card.toString());
        System.out.println("谢谢您的使用，欢迎下次光临！！！");
    }

    @Override
    public void queryTurnI() {
        // 使用Map循环显示用户信息
        System.out.println("-----------------------");
        for (String str : cardMap.keySet()) {
            Card card = cardMap.get(str);
            System.out.println(card.getName() + "\t" + card.getAccount()+ "\t" + card.getPassword() + "\t" + card.getBalance()+ "\t" + card.getBankName());

        }
        System.out.println("------当前用户转账信息----");
        for (String str : OutIn) {
            System.out.println(str);
        }
        if (OutIn.size()==1){
            System.out.println("当前用户无转账信息！！！！");
        }
        System.out.println("-----------------------");
    }
}

Person测试类

package com.cpd.atmTest.test;

import com.cpd.atmTest.entity.Card;
import com.cpd.atmTest.impl.AtmDaoImpl;

import java.util.Scanner;

public class Person {
    public static void main(String[] args) {
        //欢迎登录
        System.out.println("---欢迎登录ATM系统---");
        AtmDaoImpl atmDao = new AtmDaoImpl();
        Scanner scanner = new Scanner(System.in);
        boolean type=true;
//调用登录方法
        atmDao.login();
        while (type){

            System.out.println("---请选择你想要操作类型*---");
            int choose=scanner.nextInt();
            switch (choose){
                case 1:
                    atmDao.inquireMoney();
                    atmDao.showMenu();
                    break;
                case 2:
                    atmDao.takeMoney();
                    atmDao.showMenu();
                    break;
                case 3:
                    atmDao.saveMoney();
                    atmDao.showMenu();
                    break;
                case 4:
                    atmDao.turnMoney();
                    atmDao.showMenu();
                    break;
                case 5:
                    atmDao.print();
                    atmDao.showMenu();
                    break;
                case 6:
                    atmDao.checkCard();
                    type=false;
                    break;
                case 7:
                    atmDao.queryTurnI();
                    atmDao.showMenu();
                    break;
                default:
                    System.out.println("default");
                    break;
            }
        }
    }
}

代码实现展示