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Difference between concrete class and abstract class Concrete class Abstract class It is used to create object. It cannot be used to create object.

Define Abstract class Abstract class is a class which has at least one pure virtual function in it. What are the rules of using constructor in inheritance? To call parameterized …

Pure virtual function is a virtual function that does not have body and that is required to be implemented by a desired class. We need to use pure virtual function …

Virtual function: Virtual function is a member function in base class which is overridden in derived class. When we need to solve of function call is done at run time …

Difference between early binding and late binding Early Binding Late Binding Early binding happens at compile time. Late binding happens at run time. Function definition and function calls are linked …

Briefly explain early binding and late binding? The word binding means the mechanism which the compiler uses to decide which function should be executed on which call. Early binding: The …

Define ambiguity resolution in inheritance. How can it be performed in C++? When a derived class has two base classes, base classes have function with the same name. If we …

Clearly mention the rules when a class is inherited using private, public and protected mode?   Public derivation Private derivation Protected derivation private Not inherited Not inherited Not inherited protected …

Define Inheritance. Classify Inheritance Inheritance is the process of creating new class from existing class. There are 5 types of inheritance. Single inheritance Multiple inheritance Hierarchical inheritance Multiple inheritance Hybrid …

Write the situation when copy constructor must be used? When an object of the class is returned by value. When an object of the class is passed by values as …