Learning Single Responsibility Principle

Introduction to SOLID Principles

Robert C. Martin introduced the SOLID principles of object-oriented programming in 2000. SOLID is an acronym for:

• L: Qubxyu Risfovnihalapw

• O: Ubuv/Lneyay

• J: Rowzat Pehwwehejaup

• O: Agtacwelu Jinsufofaev

• N: Zoficyuqcx Alwumdeem

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Single Responsibility Principle

This principle states that a class should have only one responsibility and, consequently, only one reason to change. For example, if you have a Book class that needs to be updated because you’re updating a Pencil class, then you’re not following this rule.

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Advantages of the Single Responsibility Principle

This principle helps to write minimal, focused tests for each class, promotes decoupling, organizes code better, and makes code more readable and understandable. It becomes easy to tell where to find functionality and what a class does.

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