ATM 机应用的 NoSuchElementException 错误（已修改）

问：

我目前正在学习 Java，我正在尝试通过构建 ATM 机应用程序来保留我学到的信息（我计划在未来添加更多内容）。 我目前的问题是我想反复询问用户“您想做什么”，直到提供有效输入（当前有效输入是“提款”和“存款”）。

我有一个循环，如果输入无效，它会反复询问用户“请选择一个有效的选项”。如果输入有效，它将仅执行一次，询问“您想做什么”，然后显示 NoSuchElementException。不知道如何解决这个问题。

这是我的代码：

App.java

import java.util.Scanner;

public class App {
    public static void main(String[] args) throws Exception {
        Scanner scanner = new Scanner(System.in); 
        boolean done = false;       

        while(!done) {
            System.out.println("What woul you like to do?");
            String response = scanner.next().toLowerCase();
            Transactions newTransaction = new Transactions();

            if (response.equals("withdraw")) {
                newTransaction.Withdrawal();
            } else if (response.equals("deposit")) {
                newTransaction.Deposit();
            } else {
                System.out.println("Please select a valid choice");
            }   
        }
        scanner.close();
    }
}

Transactions.java

import java.util.Scanner;

public class Transactions {
    private int currentBalance = 100;

    public void Withdrawal() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("How much would you like to withdraw?");

        int withdrawAmount = scanner.nextInt();

        if (withdrawAmount > 0) {
            if (currentBalance > 0) {

                currentBalance -= withdrawAmount;
                System.out.println("Amount withdrawn: $" + withdrawAmount);
                System.out.println("Current Balance: $" + Balance());
                if (currentBalance < 0) {
                    System.out.println(
                            "You have withdrawn more than you have in current balance.\nYou will be charged a overdraft fee");
                }
            } else {
                System.out.println(
                        "You have withdrawn more than you have in current balance.\nYou will be charged a overdraft fee");
            }
        } else {
            System.out.println("Can't remove 0 from account");
        }

        scanner.close();
    }

    public void Deposit() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("How much would you like to deposit?");

        int depositAmount = scanner.nextInt();

        if (depositAmount > 0) {
            currentBalance += depositAmount;
            Balance();
        }
        System.out.println("Amount deposited: $" + depositAmount);
        System.out.println("Current Balance: $" + Balance());

        scanner.close();
    }

    public int Balance() {
        return currentBalance;
    }
}

错误信息

NoSuchElementException