different types of initialization in C++

Question

I\'m learning C++, and am rather confused as to the different types of initialization.

You can do:

T a;

which, as far as I can tell

Answer 1

T a = 1; // implicitly converted to T sometimes?

You can do that if T has a copy constructor.

T a();

this sound more like a function declaration of "a" that return a type T