This document provides an introduction to object-oriented programming (OOP) concepts in 3 sentences or less: It discusses how programming languages use characters, numbers, syntax, methods and modules similarly to how novels use characters, words, phrases, paragraphs and syntax. The key OOP concepts of abstraction, encapsulation, inheritance and polymorphism are defined, including how abstraction simulates real-world objects, encapsulation hides implementation details, inheritance allows sharing of data and functionality, and polymorphism allows multiple forms at runtime depending on context. Examples of polymorphic behavior through inheritance, overloading, generics and reflection are also provided.

1. OOP in 10 minutes
An introductory topic to OOD
Sameh Deabes

2. How to write a novel in
Russian?

3. How to write a novel in Russian?
• Characters
• Words
• Phrases
• Paragraphs
• Syntax
• Eloquence = ‫بالغة‬
• Literature = ‫أدب‬
• Novels = ‫روايات‬

4. How to write programs like novels?
• Programming language:
• Characters, Numbers, syntax
• Methods, modules
• OOP
• OOD
• Design Patterns
• Enterprise Architecture Patterns
• Integration patterns

5. Concepts of OOP I - Abstraction
• Abstraction = ‫تجريد‬
• Simulating real-world objects in computer world
• The ability to classify (create classes/blueprints + objects)
• ‫الشيء‬ ‫هو‬ ‫ليس‬ ‫الشيء‬ ‫وصفك‬

6. Concepts of OOP II - Encapsulation
• Encapsulation = ‫كبسلة‬=‫كبسولة‬ ‫في‬
• data hiding
• access modifiers: public, private, protected, internal, protected internal
• hide implementation details

7. Concepts of OOP III - Inheritance
• Inheritance = ‫وراثة‬
• Sharing data and functionality from parents

8. Concepts of OOP IV - Polymorphism
• Polymorphism  poly = ‫,متعدد‬ -morphism = ‫أوجه‬
• Many forms @ runtime depending on context

9. Concepts of OOP IV – Polymorphism (Cont’d)
• Types of polymorphic behavior
• inheritance/interface polymorphism
• Overloading
• Generics [parametric polymorphism]
• Reflection

10. Polymorphism demo