What I am trying to do is to have a method  in class  b that will use
the class name of class a. Basically I am writing some kind of a
logger class that will print (for a certain error condition) the type
of the error and the class/method in which was detected; the logger
will be an instance variable of all other classes.
Hope this clarify the issue.
I was thinking about passing the class name as parameter in the
constructor also, but I wanted to know if it is a different way to do
it (i.e. access from class b the class name of the container  class).