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There are a class A. Another class B derived from it.
Now if I do A a = new B(); and B b = new B(); What will
happen in both the statements. And what is the difference
between these two statements.
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Answer Posted / nsy
In general, an object reference variable can refer only to
objects of its type.
There is, however, an important exception to C#’s strict
type enforcement. A reference variable of a base class can
be assigned a reference to an object of any class derived
from that base class.
It is important to understand that it is the type of the
reference variable—not the type of the object that it refers
to—that determines what members can be accessed. That is,
when a reference to a derived class object is assigned to a
base class reference variable, you will have access only to
those parts of the object defined by the base class.
| Is This Answer Correct ? | 6 Yes | 3 No |
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