OOP & SOLID Mastery
Deep dive into object-oriented design principles. Essential knowledge for writing maintainable, extensible code.
⚠️ Prerequisites
- • csharp-fundamentals-path
OOP Four Pillars
Abstraction, encapsulation, inheritance, and polymorphism.
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1
4 min
Oop Four Pillars
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2
2 min
Abstraction
Hide complexity and expose only essential interfaces to simplify how we interact with objects
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3
2 min
Encapsulation
Protect internal state and enforce access through controlled interfaces
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4
2 min
Inheritance
Create new classes based on existing ones to promote code reuse and establish hierarchies
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5
2 min
Polymorphism
Allow objects to take multiple forms, enabling flexible and extensible code
OOP Advanced Concepts
Interfaces vs abstract classes, and inheritance vs composition.
SOLID Principles
Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.
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1
2 min
Introduction to SOLID Principles
Overview of the five principles for maintainable, scalable object-oriented design
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2
2 min
Single Responsibility Principle (SRP)
A class should have one, and only one, reason to change
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3
2 min
Open/Closed Principle (OCP)
Software entities should be open for extension but closed for modification
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4
2 min
Liskov Substitution Principle (LSP)
Objects of a superclass should be replaceable with objects of its subclasses without affecting program correctness
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5
2 min
Interface Segregation Principle (ISP)
Clients should not be forced to depend on interfaces they do not use
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6
2 min
Dependency Inversion Principle (DIP)
High-level modules should not depend on low-level modules; both should depend on abstractions
Comprehensive Review
In-depth OOP and SOLID patterns overview.