function overriding in c++
#include <iostream>
class Base {
public:
virtual void display() const {
std::cout << "Base class display\n";
}
};
class Derived : public Base {
public:
void display() const override {
std::cout << "Derived class display\n";
}
};
int main() {
Base baseObj;
Derived derivedObj;
Base* ptr = &baseObj;
ptr->display(); // Calls Base::display()
ptr = &derivedObj;
ptr->display(); // Calls Derived::display()
return 0;
}