i LOVE kotlin

In the world of Kotlin programming, there's a feature that stands out for its simplicity and utility: data classes. If you've ever found yourself writing classes primarily to hold data, you're in for a treat. Let's dive into what makes Kotlin data classes so special and why they should be a part of every Kotlin developer's toolkit. What is a Data Class? At its core, a data class is a class whose main purpose is to hold data. In Kotlin, we can declare a data class by simply adding the `data` keyword before the `class` keyword. But don't let this simplicity fool you – there's a lot going on under the hood! data class Book(val title: String, val author: String, val year: Int) The Magic of Data Classes When you declare a class as a data class, Kotlin automatically generates several useful methods for you. Let's break them down: 1. toString(): This method provides a readable string representation of your object. No more cryptic output when you print your ...