Single Responsibility Principle

“Mastering Clean Code: Understanding the Single Responsibility Principle (SRP) with Real-World Examples”

Introduction

There is a set of five principles for writing clean, scalable, maintainable object-oriented code. These principles are known as SOLID principles. The S in SOLID stands for Single Responsibility Principle.

Definition

A class should have only one reason to change. In other words, a class should only have one job, one responsibility, and one purpose.

If a class takes more than one responsibility, it becomes coupled. This means that if one responsibility changes, the other responsibilities may also be affected, leading to a ripple effect of changes throughout the codebase.

Real-life Analogy

Imagine a chef who is responsible for cooking, cleaning, serving food, and ordering groceries. If the chef is busy cleaning, they can’t focus on cooking, and the quality of the food may suffer.

Instead, different people should handle each task: one person cooks (chef), another cleans (cleaner), third serves (waiter) and…