Last week, we had the author of TDD for a Shopping Website LiveProject. Friday at 11am Ranch time, Steven Solomon will be hosting a live TDD session just for us. See for the agenda and registration link
Is it correct to create a "library" class and drop all common methods (e.g. ByteArrayToInt()) into it - "static final", and then call the methods without instantiating the "library" class?
I have created different utility classes (BooleanUtils, StringUtils, Utils,...) with static methods (not "static final") you can call without creating first an instance of the utility class. Because it is an utility class, it only exists for other classes to access its static members, so I did something (very) simple, making it impossible to instantiate an utility class.