Kotlin Class Essentials : Part 1-Data classes 🧑‍💻

Hello 🙋🏻‍♂️ fellow Kotlin developers. Welcome to this series on mastering Kotlin’s powerful class types! Over the next few articles, we’ll cover:

1. Data Classes — for cleaner, simpler data handling.
2. Sealed Classes — for managing different states like a pro.
3. Enums — perfect for representing fixed sets of values.

In this first article, we’ll dive into data classes and see how they help reduce boilerplate code and make data handling a breeze. 💨

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What is a Data Class and Why do we need it? 🤷‍♂️

Imagine you are working with a user profile screen in your app. Let’s say you have a User class with properties as name and age.

class User(val name: String, val age: Int) {
    // Code inside the class
}

What happens when you try to print user object?

Since we haven’t overridden the toString() method, the default toString() for a regular class like this will just print something like: