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 recently came across same problem. I was usnig static method. This method basically returns the folder path I need to save all the user defined settings. Now the problem is that I need to write a test case that basically wipes out everything from the folder. I'd definitely not want to delete actual files and therefore I'd want that method to return something else. Yakes .... I can't casue I can't mock the method as it's static. Left with no luck but to change it to a not static method and have the class implement the interface with that method. Then I can easily mock that interface and have the method return any path I want.

End result. Making it a not static gives you more functionality. Make class Singleton and you have everything a static does for you plus loosely coupling.