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Understanding the Open/Closed Principle in Kotlin Android with Jetpack Compose

11 min readMay 13, 2025

Introduction

The Open/Closed Principle (OCP) is the second of the five SOLID design principles in object-oriented programming. Originally introduced by Bertrand Meyer in 1988, this principle states that software components.
Like classes, modules, and functions should be open for extension but closed for modification. In simple terms, you should be able to add new features or behaviors without changing existing code.

The Open/Closed Principle is one of the five principles that form the SOLID acronym:

  • S: Single Responsibility Principle
  • O: Open/Closed Principle
  • L: Liskov Substitution Principle
  • I: Interface Segregation Principle
  • D: Dependency Inversion Principle

Each principle covers a different part of software design, and together they help make code easier to maintain and scale. In this article, we’ll focus on the Open/Closed Principle.

Understanding the Open/Closed Principle

The Open/Closed Principle can be broken down into two parts:

  1. Open for extension: The behavior of the module can be extended to…
Ramadan Sayed
Ramadan Sayed

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