I would have thought this was common knowledge/sense, but maybe that's just me :) (Different programming/logic backgrounds etc.) Generally its good to reduce such things to the essentials that will be needed by anything calling the object, and not make them know how it works internally. (The class interface to the outside world, that is ,)

C. *forgets we're dealing with newbie programmers here quite often*

In reply to Re: Short Refactoring Tip: let the object do it for you by castaway
in thread Short Refactoring Tip: let the object do it for you by Ovid

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