Virtual Methods in C++

This lecture introduces the concept of polymorphism in C++ through virtual methods, explaining how subclass instances can replace superclass instances and how method resolution works. It covers the declaration of virtual methods, dynamic link resolution, and provides examples to illustrate the concept. The instructor emphasizes the importance of defining destructors as virtual and explains how constructors cannot be virtual. The lecture concludes with a discussion on the interaction between virtual methods and constructors, highlighting that polymorphism is ignored in constructors.