Answer / sandeep choudhary

inheritance is the ability for a class to inherit of
properties and the behavior from a parent class by extending it.

while containership is the ability of a class to contain the
another objects as member data.

if a class is extended, it inherits all the public and
protected properties and the behaviors and those behavior
may be overridden by the sub class.but if a class is
contained in another, container class does not have the
ability to add and modify of contained.

advantage and disadvantage in c++>>oops and what are the questions ask for interview in c++>>oops. could you tell me or reply me

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What is virtual function?where and when is it used?

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suppose A is a base class and B is the derved class. Both have a method foo which is defined as a virtual method in the base class. You have a pointer of classs B and you typecast it to A. Now when you call pointer->foo, which method gets called? The next part of the question is, how does the compiler know which method to call?

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What does I oop mean?

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