private static int getNumber() {
        int checkNum;

    System.out.format("Please enter a 5-digit integer: ");

        try {
            Scanner keyBoard = new Scanner(System.in);
            checkNum = keyBoard.nextInt();
        } catch (java.util.InputMismatchException e) {
            System.out.format("Oops, that's not an integer!");
        }

        return checkNum;
    }