Generics and Variance
In this chapter, we will delve into the powerful world of generics in Kotlin. For those who are familiar with Java, it is important to note that generics in Kotlin offer a more robust and type-safe approach. Kotlin’s type system handles variance more explicitly and eliminates issues such as raw types and wildcard complexity. In this chapter, we will explore the fundamentals of generics and cover essential concepts related to them. After that, we will delve into some important details and nuances that can help you better understand and effectively use generics in Kotlin.
Generics allow you to define classes, interfaces, and functions without explicitly specifying the type of data they will work with until they are instantiated or used. This offers greater flexibility and code reuse.
We will start with a summary of generics in Java. After that, we will explain the concept of Kotlin generics, starting with a couple of examples. This concept enables...