how to detect object reference between objects?

[fairyvoice]

Hi, this seems more like some interview question. There is a class A and
class B and B has a instance of A, I have instance a of A and b of B, is
there any way to detect whether b has a reference pointing to a?
Thanks

 

[Family Tree Mike]

Hi, this seems more like some interview question. There is a class A and
class B and B has a instance of A, I have instance a of A and b of B, is
there any way to detect whether b has a reference pointing to a?
Thanks

Unfortunately the answer is maybe....

You need to answer whether the A class reference inside of class B is
public, and whether you want to test the reference in the class A, class B,
or an external object.

If the test method is in class B, then the answer is yes.

 

[fairyvoice]

I mean from the outside, where I can not get the A reference of b through
some method or property of B.