cpp-oop-lab-programs/Program 21 - Virtual Function.cpp at main · Divyansh11x/cpp-oop-lab-programs · GitHub

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#include <iostream>
using namespace std;

class Animal
{
public:
    virtual void sound()
    {
        cout << "Animal makes a sound." << endl;
    }
};

class Dog : public Animal
{
public:
    void sound() override
    {
        cout << "Dog barks." << endl;
    }
};

class Cat : public Animal
{
public:
    void sound() override
    {
        cout << "Cat meows." << endl;
    }
};

int main()
{
    Animal *ptr;

    Dog d;
    Cat c;

    ptr = &d;
    ptr->sound();

    ptr = &c;
    ptr->sound();

    return 0;
}