Kotlin is a modern programming language using the static typing method used by Android Developers. Kotlin is developed by JetBrains, which is the developer of Android Studio.
Kotlin was first released in 2011 and the stable version was released on February 4, 2021. Kotlin is now the most popular Android programming language in the world. Large companies such as Uber, Netflix, Pinterest, Coursera, and Evernote use Kotlin to develop their mobile applications.
Kotlin Characteristics
The website developer.android.com mentions some of the characteristics that characterize Kotlin, namely:
(1) Expressive and concise
Kotlin is expressive and concise because it minimizes the compilation process and complexity that is common when developing mobile applications with Java.
(2) Safe
Kotlin helps Android Developers avoid NullPointerExceptions via @Nullable and @NonNull. Even Kotlin is said to be able to reduce the possibility of errors by 20% lower in Android mobile applications.
(3) Interoperability between Java and Android
Kotlin’s interoperability with Java is 100% so when developing mobile applications, you can be flexible on how much to use Kotlin or Java. Old code or libraries in applications developed with Java can be easily read by Kotlin, and vice versa.
(4) Concurrent and Structured
Kotlin is able to simplify asynchronous programming, thereby simplifying the process of network calls and database updates. Although simple, the performance is still high.
(5) Open Source
Kotlin is open source because it is under the Apache v. license. 2.0 Compiler, Intellij DEA plugin, and Java library.
(6) Easy to learn
The source language of Kotlin is Java, so once you understand Java it will be easy for you to learn Kotlin. Those of you who know Scala, Groovy, C#, JavaScript, and Gosu can also easily learn Kotlin.
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