while-loop等于无法正常工作（java银行账户）

Question

所以我的任务是编写一个银行账户程序，询问你是想要存款还是取款，它要求多少，最后是否要继续，如果不是，它会显示我当前的账户平衡。例如：

存款或取款（0存款，1 - 取款）： 多少？ 你想继续吗？

余额：XX.XX

当答案是＆＃34; Y＆＃34;该程序应循环播放并中断。在＆＃34;你想退出吗？＆＃34;。

package Account;

import java.util.Scanner;

public class bankVisit {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        bankAccount account = new bankAccount();

        String respond = "N";

        System.out.print("Deposit or withdraw (0-deposit, 1-withdraw): ");
        int choice = scan.nextInt();

        while (respond.equals("N")) {
            if (choice == 0) {
                System.out.print("Amount: ");
                double total = scan.nextDouble();
                account.credit(total);

                System.out.print("Do you want to quit? ");
                respond = scan.next();
            } else if (choice == 1) {
                System.out.print("Amount: ");
                double total = scan.nextDouble();
                account.withdraw(total);

                System.out.print("Do you want to quit? ");
                respond = scan.next();
            }

            System.out.print("Deposit or withdraw (0-deposit, 1-withdraw): ");
            choice = scan.nextInt();
        }

        System.out.println("Balance: " + account.getBalance());

        scan.close();
    }
}

我让它循环，但我不知道如何让循环退出，并发布我的余额，它保持循环，即使＆＃34;响应＆＃34;不等于＆＃34; N＆＃34; ..任何想法？我是Java的新手，所以一切都会做。