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 ...
What dependency injection means? Well, we can break it into two parts: Part1 : Dependency Part2 : Injection Dependency is a general situation that arises , when two classes in your code base are interrelated. Example : FirstClass makes use of SecondClass . We say that FirstClass depends on SecondClass , or alternatively, we can say that SecondClass is the dependency of the FirstClass. The other way to state the same thing is to say that FirstClass is the client while SecondClass is the service. This client-service terminology is very common in software design, that the same class can be a client or a service in different circumstances, and that the client-service definition is not universal. It's contextual. We can only assign client and service roles when we discuss two specific classes in our codebases.So, in order to function clients need references to their services.How do they obtain those references? W...
