// Program to illustrate pure virtual function
#include<iostream.h>
#include<conio.h>
class base
{
public:
virtual void show() =0;
};
class derived1:public base
{
public:
void show()
{
cout<<"\nFrom derived1 class";
cout<<endl;
}
};
class derived2:public base
{
public:
void show()
{
cout<<"\nFrom derived2 class";
cout<<endl;
}
};
void main()
{
base *ptr;
derived1 d1;
derived2 d2;
clrscr();
ptr=&d1;
ptr->show();
ptr=&d2;
ptr->show();
}
Test data
Output
From derived1 class
From derived2 class
