Base class and drive class definition with example in c plus plus?

In C++, a base class is a class that provides common attributes and methods for derived classes, allowing for code reuse and polymorphism. A derived class inherits from the base class, extending or overriding its functionalities. For example:

<code class="language-cpp">class Animal { // Base class
public: void speak() { std::cout << "Animal speaks\n"; } };
class Dog : public Animal { // Derived class public: void speak() { std::cout << "Dog barks\n"; } };
</code>

In this example, Animal is the base class, and Dog is a derived class that overrides the speak method.