What is the difference between static methods in a Non static class and static methods in a static class?

Question

I have two classes Class A and ClassB:

static class ClassA
{
    static string SomeMethod()
    {
        return \"I am a Static Method\";
    }
}

class Cla         


        

Answer 1

If you have a non-static class containing only static methods, you could create an instance of that class. But you can't use that instance meaningfully. NB: when you don't define a constructor, the compiler adds one for you.

A static class does not have a constructor, so you can't create an instance of it. Also the compiler gives an error when you add an instance method to it (where you meant a static method).

See also docs.