Data classes
We will start by briefly talking about what a data class is, then take a break to go to Java to do some code, and then continue with the explanation of a data class. Let’s begin the explanation.
One of the key features of Kotlin data classes is their support for immutability through the use of val properties. By defining properties as val (read-only), you ensure that their values cannot be modified after the object is created, which aligns with the principles of functional programming and leads to safer, more predictable code. While Kotlin allows the use of var for mutable properties, this is generally discouraged in data classes, as it undermines immutability and can lead to unintended side effects. To maintain immutability while making changes, Kotlin provides the copy function, which allows you to create a new instance of the data class with modified properties while keeping the original object unchanged. This balance of immutability and flexibility is one...
