Message("Adam", "Everything going according to plan today?"), Val isRead: Boolean = false, // Provide a default value for the argument toList() // Convert sequence back to a list to get a resultĭata class Message( // Create a data class Have a look at this example: fun main() // Use lambdas. One of the great things about Kotlin is that it supports both object-oriented and functional programming. If it's open-source, you can even send a pull request that adds Kotlin extensions (Spring has lots of them). For example, you can implement an interface behind a framework/library that ensures null safety. So you can use the libraries you love while also using all Kotlin features. Kotlin is compatible with all frameworks written in Java. If you want to learn more about Kotlin coroutines, take a look at this page. With simple primitives such as launch, async, or suspended, you can implement basic concurrency in Kotlin. small programs that can be started and paused based on several factors. Kotlin coroutines are usually defined as lightweight threads, i.e. ConcurrencyĬompared to other JVM-based languages, Kotlin stands out for its minimal yet powerful non-blocking programming API that can launch coroutines. If you want to learn how Kotlin handles nullity, have a look at this page. I prefer not to deal with NullPointerException anymore. There's a reason Tony Hoare apologized for inventing the null reference (which he called his billion-dollar mistake). Kotlin turned one of the biggest problems of Java into a powerful feature that allows a programmer to easily deal with the absence of value. 5 Kotlin Features that Backend Developers Love Null Safety If you're a backend developer unfamiliar with Kotlin, read on. This blog post will dive into five reasons why Kotlin is a great programming language for backend development too. In 2021, that had grown to one in six, making it the second-most popular language on the JVM. Have a look at these numbers from Syk's 2021 JVM Ecosystem Report: In 2020, one in twenty developers used Kotlin for their main application. I can tell, because I've been creating production-ready microservices with Kotlin since 2018.
And it's awesome! I love how Kotlin makes Android development easier and faster.īut there's much more to Kotlin than Android. You might have thought the same, and it wouldn't be your fault! Kotlin's tight integration with Android Studio makes it virtually unavoidable if you want to program an Android app. “Oh, so you're an Android developer?” they almost always say. Something magical happens whenever I tell someone that I program in Kotlin.
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