History

• Kotlin was created by the JetBrains team from St. Petersburg, Russia. JetBrains is perhaps best known for the IntelliJ Idea IDE, the basis for Android Studio. Kotlin is now used in a wide variety of environments across multiple operating systems.
• Google announced support for Kotlin on Android. According to the Android Developers Blog, as of 2021, over 1.2 million apps in the Google Play store use Kotlin, including 80% of the top one thousand apps.

Kotlin

Docs

Kotlin Docs | Kotlin

Latest features: a new operator for open-ended ranges, support for compiler plugins in the Kotlin K2 compiler, the new Kotlin/Native memory manager enabled by default, support for Gradle 7.1, and more

Conventions

Coding conventions | Kotlin

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Examples

Kotlin Playground: Edit, Run, Share Kotlin Code Online

package org.kotlinlang.play // 1 fun main() { // 2 println(“Hello, World!”) // 3
}