BankAccountTester.java

import java.util.*;

public class BankAccountTester {

	public static void main(String[] args) {

		BankAccount account = new BankAccount();
		Scanner scan = new Scanner(System.in);
		String s = "";
		String cmd = "";
		float value = 0;

		do {
			System.out.println("Comando? (Q, B, D, W, A)");

			try {

				s = scan.nextLine();

			} catch (NoSuchElementException e) {
				System.out.println("NoSuchElementException");
			}

			if (!s.equals("")) {
				if (s.trim().length() == 1) {
					cmd = s.trim();
				} else {
					cmd = s.substring(0, 1);
					value = Integer.parseInt(s.substring(1).trim());
				}
			}

			switch (cmd.toUpperCase()) {

			default:
				// empty
				break;

			case "Q":
				System.out.println("Chiusura programma...");
				System.out.println("Arrivederci");
				break;

			case "B":
				System.out.println("Saldo attuale: " + account.getBalance());
				break;

			case "D":
				if (account.deposit(value)) {
					System.out.println("Deposito effettuato: " + value);
				} else {
					System.out.println("Deposito non effettuato");
				}
				break;

			case "W":
				if (account.withdraw(value)) {
					System.out.println("Prelievo effettuato: " + value);
				} else {
					System.out.println("Prelievo non effettuato");
				}
				break;

			case "A":
				if (account.addInterest(value)) {
					System.out.println("Interesse aggiunto: " + value);
				} else {
					System.out.println("Interesse non valido");
				}
				break;

			}

		} while (!(cmd.equalsIgnoreCase("Q")));
		scan.close();

	}
}