Accepting only Valid Time

Alright so in Java I want to ask the user for a time in 24-hour format. I have managed to leverage `DateFormat` and `SimpleDateFormat` to tell it what format the time is being entered in and then to interpret that accordingly, throwing an exception if it does not follow that format. Here is what I have: ``` DateFormat fmt = new SimpleDateFormat("HH:mm"); Scanner keyboard = new Scanner(System.in); try { String input = keyboard.nextLine(); Date theDate = fmt.parse(input); System.out.println(theDate.toString()); } catch (ParseException e) { System.out.println("Incorrect format!"); e.printStackTrace(); } ``` If I type in a word, it indeed throws an exception. However, if I type in something like `234234:2342342` it actually goes and does the math to figure out how many days those hours and minutes equate to, then outputs the actual date. For example, given input: ``` input: 23423423:232323 output: Fri Jul 29 07:03:00 PDT 4642 ``` I am wondering if there is a way to treat this as an exception. So I want to only accept what the formatters specify (H 0-23 and m 0-59), and if it does not fall within these boundaries, throw an exception or have some way of knowing. What I would like to know is if there is a way to do this within the formatter classes I am using, or if it should be done using the Scanner class (how?), or if I have to write the parsing and validation code myself. Am I approaching this completely wrong? I am currently just trying out the possibilities, so if there is a better way please let me know. Thanks!