---
title: "Discussion on \"SOLID Principles\" | Hashnode"
description: "Discussion on \"SOLID Principles\". When we start learning Object-Oriented Programming, we often just learn classes, objects, and inheritance. But when we start working on real projects, we realize that writing code that works is not enough — it should be easy to change, easy to extend..."
url: "https://hashnode.com/posts/solid-principles/68e754f9cefb217907f84614"
---

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# [SOLID Principles](https://sridevi139.hashnode.dev/solid-principles?utm_source=hashnode&utm_medium=feed)

When we start learning Object-Oriented Programming, we often just learn classes, objects, and inheritance. But when we start working on real projects, we realize that writing code that works is not enough — it should be easy to change, easy to extend...

Oct 9, 2025 · 6 min read · sridevi139.hashnode.dev  
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-   [#system-design](https://hashnode.com/tag/system-design)
-   [#solid-principles](https://hashnode.com/tag/solid-principles)
-   [#oop-design-principles](https://hashnode.com/tag/oop-design-principles)
-   [#design-principles](https://hashnode.com/tag/design-principles)

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