Slight restructuring of Blackjack

 I've made the following methods private; generateRandomCardNumber(), cardNumberToString(), generateRandomCardSuit() and exposed them through a new (renamed) createCard() method.

I'm kinda second guessing where you are going with the flow, but it seems easier that down the line it will be easier to simply call 'createCard()' and all methods with be called from there (I can't think of any reasons as to why you may need these public and available outside of this method??)

Anyway, all good fun!