public boolean isValidAccountNum(String s) {
		if (accountNum.length() != 6) {
			return false;
		}
		if (!Character.isUpperCase(accountNum.charAt(0))) {
			return false;
		}
		for (int i = 1; i < accountNum.length(); i++) {
			if (!Character.isDigit(accountNum.charAt(i))) {
				return false;

			}
		}
		return true;

	}