Kotlin — Hello World
The classic hello-world in Kotlin — a top-level main function — for testing highlighters, the Kotlin compiler, and parsers.
// The classic first program, in Kotlin.
fun main() {
println("Hello, world!")
}
Specifications
- Language
- Kotlin
- Kind
- hello-world
- Lines
- 4
- Encoding
- UTF-8
- Line Endings
- LF
What is a .kt file?
Kotlin (.kt) is a plain-text source file for the Kotlin programming language — a statically typed, JVM language from JetBrains that interoperates with Java. It is the preferred language for modern Android development and features null safety, data classes, extension functions, and concise syntax.
How to use this file
Use an example .kt file to test syntax highlighters, the Kotlin compiler, linters and formatters (ktlint), and parser or language-detection tooling.
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