reading-notes

Reading Notes for Codefellows!

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Code 401 ASP.NET

Reading 06

(All My Notes are attributed/sourced from the Resources directly preceding them.)

Summary

• Class inheritance allows you to modify and expand the functionality of existing classes.
• Classes can contain virtual classes that allow developers to override their definition and implementation.
• Abstract classes cannot be instantiated.
  • The purpose of an abstract class is to provide a common definition base for other classes.
• A Sealed Class prevents derivation, therefore sealed classes cannot be used as a base or abstract class.
• Polymorphism occurs when a derived class is instantiated as the base class.
  • This makes the declared type different than the run-time type
  • Virtual members in the base class is what enables Polymorphism
• Object-Oriented Programming has 4 key techniques:
  1. Abstraction
  2. Encapsulation
  3. Inheritance
  4. Polymorphism
• C# is an Object-Oriented Language

Resources

• Inheritance (C# Programming Guide)

  • Author: Microsoft Docs

  • Article Source

• Abstract and Sealed Classes and Class Members (C# Programming Guide)

  • Author: Microsoft Docs

  • Article Source

• Polymorphism (C# Programming Guide)

  • Author: Microsoft Docs

  • Article Source

• Object-Oriented programming (C#)

  • Author: Microsoft Docs

  • Article Source

• C# 7.0 in a Nutshell (Chapter 3)

  • Authors: Joseph Albahari & Ben Albahari

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