I am trying like mad to learn more. So I have decided to put time into Recursive algorithms. I do not want to start a conversation whether or not one should or should not use recursion in this example. That is a conversation for another day. I don’t believe that using it here will impact the app at all.
As an experiment I am trying to use one in my validation method. Would one of you great minds take a look at this. It works, but I feel I am jumping through too many hoops. This is my first attempt so have a little pity: public String validateHeight(String value) throws ValidationException { value = value.trim(); if (!isNumber(value)) { throw new ValidationException("There can be only numbers in the Height field! (value was " + value +")"); } return value; } private boolean isNumber(String stringToCheck) { if (stringToCheck.length() == 0) return true; if (!Character.isDigit(stringToCheck.charAt(0))) return false; return isNumber(stringToCheck.substring(1, stringToCheck.length())); } My desire is to get better at this and learning recursion is very important. Also, when I look at other people’s code, there are times that there are recursive calls and I struggle to understand them. _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com