When to use static classes and methods?

Question

I have a general question...when should i be using static classes or static methods?.. I know the idea that static methods can be called without instantiating...and static c

Answer 1

As I understand it that's when there's no sense to create an object of a class to invoke an action or that class is common within the application. For example, in C#, Console class is sealed (so you can't create an object and inherit it, and there's really no sense to do it). But professionals will explain you better, however.