javaOOP项目实战——银行ATM机

银行管理系统项目

1、ATM_Machine

package Bnk;



import javax.naming.Name;
import javax.smartcardio.Card;
import java.io.BufferedReader;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.InputMismatchException;
import java.util.Scanner;
import java.util.function.BinaryOperator;

public class ATM_Machine {
    private boolean isFirstShow = true;
    public boolean loginCheck(BankCard card,int password){
        int truePassword = card.getPassword();
        if (truePassword == password){
            return true;
        }
        return false;
    }
    public void showTitle(){
        System.out.println("------------ATM系统------------");
    }
    //登录成功后，系统开始工作
    public void showOperation(BankCard card){
        //登录，查询余额，存款，取款，转账，销户，开户，退出
        Scanner input = new Scanner(System.in);
        if(isFirstShow) {
            this.showTitle();
            isFirstShow = false;
        }
        System.out.println("1.查询余额\t\t\t2.存款");
        System.out.println("3.转账    \t\t\t4.取款");
        System.out.println("5.销户    \t\t\t6.退出");
        System.out.println("请输入您要进行的操作：");
        int option = input.nextInt();
        input.nextLine();
        switch (option){
            case 6:exit();
                BankSystem.start();
                break;
            case 1:
                showBalance(card);
                break;
            case 2:
                showDeposit(card);
                break;
            case 3:
                showTransfer(card);
                break;
            case 4:
                showWithdrawal(card);
                break;
            case 5:
                closeAccount(card);
                break;
            default:
                System.out.println("您输入了不合法字符，建议您重新输入！");
                showOperation(card);
        }
    }
    //退出系统，密码输入错误3次，或者交易完成后，应该退出系统
    public void exit(){
        System.out.println("ATM系统关闭");
    }

    public static void main(String[] args) {
        ATM_Machine a = new ATM_Machine();

    }
    public BigDecimal queryBalance(BankCard card){
        return card.getBalance();
    }
    public void showBalance(BankCard card){
        this.showTitle();
        System.out.println("您的余额为："+queryBalance(card));
        this.showOperation(card);
    }
    //deposit存款
    public void deposit(BankCard card,int amount){
        card.setBalance(card.getBalance().add(new BigDecimal(amount)));
    }
    public void showDeposit(BankCard card){
        this.showTitle();
        int amount = checkAmountInput("存款",20000);//一次最多存2万
        deposit(card,amount);//执行存款操作
        System.out.println("存款成功，您当前卡内余额为："+card.getBalance());
        showOperation(card);
    }
    //取款：withdrawal
    public void withdrawal(BankCard card,int amount){
        card.setBalance(card.getBalance().subtract(new BigDecimal(amount)));
    }
    public void showWithdrawal(BankCard card){
        this.showTitle();
        int amount = checkAmountInput("取款",3000);//一次最多取3千
        withdrawal(card,amount);//执行存款操作
        System.out.println("取款成功，您当前卡内余额为："+card.getBalance());
        showOperation(card);
    }

    //销户
    public void closeAccount(BankCard card ){
        Scanner input = new Scanner(System.in);
        System.err.println("销户是一个危险操作，你的所有余额将被清空，卡号将会回收，您确定要继续吗？");
        System.out.println("1.是的，继续\t\t2.取消该操作");
        String s = input.nextLine();
        if (s.equals("1")){
            BankSystem.getAllBanCard().remove(card);
            card