Implement class inheritance

Learn how to create a class hierarchy using base and derived classes and how to hide or override members of a derived class by using new, virtual, abstract, and override keywords.  

Learning objectives

• Describe the principles of class inheritance.
• Configure base and derived classes.
• Hide the members of a base class by using the new keyword.
• Override the members of a base class by using the virtual, override, and abstract keywords.
• Access the members of a base class from within a derived class.
• Implement a class hierarchy in a C# app by using base and derived classes.

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