Overridable functions are declared using keyword override virtual practical concrete

Overridable functions are typically declared using the keyword "virtual." This allows a function in a base class to be overridden in a derived class, enabling polymorphism. When you prepend a function with "virtual," it tells the compiler to support dynamic binding, which is essential for achieving the desired behavior in object-oriented programming. It's like giving permission to subclasses to reshape the functionality! In practice, when you override a virtual function in a derived class, it’s good to use the “override” keyword to make your intentions clear. This not only keeps your code tidy but also provides compile-time checks, ensuring you’re actually overriding a base class function and not just creating a new one by mistake. It’s all about clear communication in code!