Does it matter if a class is abstract when it uses Generics?

Question

I.e, does the abstract modifier do anything here:

public abstract class MyClass<T> where T : class {
}

You can't use Generic classes on their own anyway, so what difference does it make if it's abstract or not?

Answer 1

With the abstract keyword, you have to subclass it to use it.

class MySubclass : MyClass<string>
{
}

var o = new MySubclass();

Without it, you can instantiate directly:

var o = new MyClass<string>();