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Build class hierarchies. Use inheritance, virtual functions, and polymorphism for flexible code.
Building class hierarchies
Sharing class behavior
Parent and child relationship
Declaring derived classes
Members passed to derived
Class extension
Knowledge check
Inheritance visibility
Access from derived classes
Class extension
Initializing base parts
Cleanup from derived to base
Class extension
Replacing base behavior
Knowledge check
Name resolution in inheritance
Runtime type selection
Class extension
Enabling polymorphic calls
Syntax and rules
Polymorphism
Runtime dispatch mechanism
Knowledge check
Forcing derived implementation
Non-instantiable base classes
Code organization
Can it be instantiated?
Pure abstract classes
Preventing memory leaks
Knowledge check
Explicit override declaration
Preventing further overrides
Class extension
Inheriting from multiple bases
Shared base duplication
Knowledge check
Design decision guidelines
Build polymorphic system
Class extension
Abstract class design
Knowledge check
Fix memory leak
Experiment with keywords
OOP force calculation
Inheritance benefits
Implementation approach
Counter-based loop
Pseudocode solution
summary
Virtual methods
Polymorphism benefits
Implementation approach
Conditional execution
Pseudocode solution
summary
What we learned