What are some examples of OOP in C++?

What are some examples of OOP in C++?

Object-oriented programming in C++ includes concepts like classes, objects, inheritance, and polymorphism. Would you like examples of each?

Yes, please provide examples of classes and inheritance.

Sure! A class in C++ can be defined like this:

class Animal {
public:
    void speak() {
        cout << "Animal speaks";
    }
};

For inheritance, you can create a subclass like this:

class Dog : public Animal {
public:
    void speak() {
        cout << "Dog barks";
    }
};

That's helpful! Can you explain polymorphism with an example?

Absolutely! Polymorphism allows methods to do different things based on the object that it is acting upon. Here's an example:

class Animal {
public:
    virtual void speak() {
        cout << "Animal speaks";
    }
};

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

void makeAnimalSpeak(Animal &a) {
    a.speak();
}

In this case, makeAnimalSpeak can take any Animal object and call the appropriate speak method.

Thanks! Can you summarize the key OOP concepts in C++?

Sure! The key OOP concepts in C++ are:

1. Classes and Objects: Blueprints for creating objects.
2. Inheritance: Mechanism to create a new class from an existing class.
3. Polymorphism: Ability to call the same method on different objects and have each respond in their own way.
4. Encapsulation: Bundling data and methods that operate on that data within one unit.