Should all methods be static if their class has no member variables

Question

I\'ve just had an argument with someone I work with and it\'s really bugging me. If you have a class which just has methods like calculateRisk or/and calc

Answer 1

Imo, they should be static. I see no reason why they shouldn't be, since instance objects would have no state, and calling the methods without instantiating would require less code and thus improved readability.

Actually, i would probably make sure the class won't be instantiated by making it abstract.