Language Introduction
Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference created by JetBrains. Google supports Kotlin and Kotlin is now an official language for android app development. Kotlin mainly targets the JVM but also compiles to JavaScript or native code.
Kotlin is easy to learn. Comparing to Java, Kotlin is more ease and approximately 40% cut in the number of lines of code. It is more type-safe and supports non-nullable types and handles the null point exception better way. It is 100% interoperable with Java and major emphasis has been placed on making sure that your existing Java code can interact properly with Kotlin. It is easily possible to call Kotlin code from Java and Java code from Kotlin
Hello world program in kotlin
fun main(args: Array<String>) {
println("Hello World!")
}
Where Kotlin can be used ?
Kotlin can be used for any kind of development. You can develop client and server-side development. You can use it for mobile application development, web application development, desktop application development, Game development, data science and so more.
As Kotlin is JVM compatible you can use Spring Boot, vert.x, or JSF for server-side development. You can use the Kotlin specific framework ktor. You can also develop a client-side web using kotlin/js.
For desktop application development existing UI framework like JavaFX or swing can be used and there is Kotlin specific UI framework called TornadoFx.
For game development existing Java game engines like LibGdx, jMonkey can be used. There is also a Kotlin specific game engine called KorGE. KorGEis a modern multiplatform game engine. KorGE is fully written in Kotlin. KorGE gradle plugin allows to target each platform natively: JVM for Android, JS for the Web and Native code for iOS and Desktop.
For developing Kotlin application any existing java IDE can be used. including IntelliJ IDEA, Android Studio, Eclipse, and NetBeans can be used. Other text editors can be used if compile through the command line.
Summery
in a summary, Kotlin is more concise safe, helpful for speed up your code, reduce the chances of errors and bugs. It is a language for all platforms. Now official language for android app development. So learning Kotlin in 2020 or 2021 would be a very good idea. Many companies moving from Java to Kotlin considering its benefits. Java is an all-time popular language. Nowadays it is a common buzz that Kotlin can replace Java.
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