This week's book giveaway is in the Other Languages forum. We're giving away four copies of Functional Reactive Programming and have Stephen Blackheath and Anthony Jones on-line! See this thread for details.
Originally posted by Frank Carver: Use instance methods if the result or side-effects depend on the state or contents of the object. Use class methods if the result depends only on its arguments or on other "static" data.
can you elaborate further or give an examples? raymond