---
title: "Discussion on \"Kotlin Data Class vs Regular Class Explained Simply\" | Hashnode"
description: "Discussion on \"Kotlin Data Class vs Regular Class Explained Simply\". What the data keyword really adds to a Kotlin class, the rules it comes with, why copy() is shallow, and what the compiler writes for you in bytecode."
url: "https://hashnode.com/posts/kotlin-data-class/6af861014d0c5c3184ad412f"
---

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# [Kotlin Data Class vs Regular Class Explained Simply](https://imayankkumar.hashnode.dev/kotlin-data-class?utm_source=hashnode&utm_medium=feed)

What the data keyword really adds to a Kotlin class, the rules it comes with, why copy() is shallow, and what the compiler writes for you in bytecode.

1d ago · 8 min read · imayankkumar.hashnode.dev  
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## Written by

[Mayank Kumar](https://hashnode.com/@imayankkumar)

@imayankkumar · Bengaluru, India

  
[View profile](https://hashnode.com/@imayankkumar)

Senior Android Engineer | Kotlin, Android Internals, Performance Engineering & AI

I'm Mayank, an Android engineer focused on Kotlin, software architecture, performance engineering, and AI-assisted development. I write about building Android apps with AI, including the experiments that don't work.

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