example1_without_override.cpp

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#include <iostream>

class Base {
public:
    virtual void display() const {
        std::cout << "Base display" << std::endl;
    }
};

class Derived : public Base {
public:
    void Display() const {  // Notice the capital 'D' - this is a mistake.
        std::cout << "Derived display" << std::endl;
    }
};

int main() {
    Base* basePtr = new Derived();
    basePtr->display();  // This will call Base::display because Derived::Display is not overriding it

    delete basePtr;
    return 0;
}