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

I believe that stateless methods should generally be static.

• It's clear in the code that no object is involved
• It avoids a meaningless constructor invocation

I can see breaking this rule for a strategy-pattern implementation, as a number of people have noted here.