What is null in c#, java?

Question

Like... is it 0 like in C++? Or is it some \"special\" object? Or maybe something totally different?

-- EDIT --

I do know what it is, the

Answer 1

null is a "reference" to nothing, so it points to literally nothing.

Additional info: A C# reference type can point to null (i.e.: nothing), a value type like int cannot point to null, although a valuetype can be used in the Nullable generic reference type.