program to demonstrate the runtime polymorphism. (C plusplus or C++)

Aim: Write a program to demonstrate the runtime polymorphism.

Ans:

#include<iostream.h>

#include<conio.h>

#include<string.h>

class  category

{

char  animal[10],human_being[10];

public:

virtual  void task()

{

cout<<"Enter name of animal:";

cin>>animal;

cout<<"\n";

cout<<"Enter name of human being:";

cin>>human_being;

cout<<"\n";

cout<<"Enter name of animal:";

cin>>animal;

cout<<"\n";

cout<<"Enter name of human being:";

cin>>human_being;

cout<<"\n";

}

};

class  derived :public category

{

char  color[10],body_parts[10],i;

public:

void  task()

{

cout<<"Enter color:";

cin>>color;

cout<<"\n";

cout<<"Enter body parts:";

cin>>body_parts;

cout<<"\n";

cout<<"Enter color:";

cin>>color;

cout<<"\n";

cout<<"Enter body parts:";

cin>>body_parts;

cout<<"\n";

}

};

void  main()

{

clrscr();

category  *p,o;

derived  o1;

p=&o;

p->task();

p=&o1;

p->task();

getch();

}