CPP - Virtual Function & Polymorphism

 

CPP

Virtual Function & Polymorphism

Fill in the blanks

1.Polymorphism means  Multitask

2.Types of Polymorphism  Compile Time , Runtime

3.Compile Time Polymorphism is Function name Same, Argument different

4.RunTime Polymorphism is Function name Same, Argument Same

5.Compile Time polymorphism types 2(Function overloading,Operator overloading)

6.Runtime Polymorphism is Virtual function

7.Virtual function keyword virtual

8.Virtual function cannot be static member.[T/F].  True

9.Abstract class could not be used for creating objects.

10.Pure virtual function syntax [ = 0 ]

 

 

Answer the following Question

                                                                              (4 marks)

1.Write a Program for Virtual function Polymorphism

 #include<iostream.h>

#include<conio.h>

class base{

                        public:

virtual void show()

                 {

                 cout<<"base class";

                }

         };

class derived : public base

              {

              public:

              void show()

             {

            cout<<"Derived";

            }

            };

void main()

{

base *p;

p=new base();

p->show();

p=new derived();

p->show();

getch();

}