Can we assign objects of two different classes. Like obj1=obj2.

Answer 1

I thought it wouldn't work without overloading the = operator, but I've checked and found out there is a generic = implemented. I've tested it, and it works.

= is the assignment operator by the way. If what you want is to test for equality, then you do have to overload the == operator.

Answer 2

c++ compiler has a default = overload for classes that's why ...

Answer 3

yes we can assign
like mr.zen said