Course Description

Introduction to SOLID Principles

In software development, adhering to best practices and design principles is essential for creating robust and maintainable code. One such set of principles that guides developers in writing quality object-oriented code is the SOLID principles. SOLID is an acronym that stands for five design principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion.

Single Responsibility Principle (SRP): This principle states that a class should have only one reason to change, meaning it should have only one job or responsibility. By adhering to SRP, classes become more focused, easier to understand, and less likely to require modifications.

Open/Closed Principle (OCP): The OCP states that software entities should be open for extension but closed for modification. This principle encourages developers to design code that can be extended without altering the existing codebase, promoting code reusability and reducing the risk of introducing bugs.

Liskov Substitution Principle (LSP): The LSP emphasizes that objects of a superclass should be replaceable with objects of its subclasses without affecting the correctness of the program. This principle ensures that inheritance hierarchies are well-designed and that subclass instances can be used interchangeably with superclass instances.

Interface Segregation Principle (ISP):