public boolean checkNumberFormatAndRange(String[] param0) {
		try {
			for (String interval : param0) {
				String[] intervalParts = interval.split(":");
				Integer first = Integer.parseInt(intervalParts[0]);
				Integer second = Integer.parseInt(intervalParts[1]);
				if (first < 0 || first > 9999 || second < 0 || second > 9999) {
					return false;
				}
			}
		} catch (NumberFormatException e) {
			return false;
		}

		return true;

	}