## hello world! Java: ```java import org.jooby.Jooby; public class App extends Jooby { { get("/", () -> "Hey Jooby!"); } public static void main(final String[] args) { run(App::new, args); } } ``` [Kotlin](/jooby-lang-kotlin): ```kotlin import org.jooby.* fun main(args: Array) { run(*args) { get { "Hello Kotlin" } } } ``` [JavaScript](/jooby-lang-js): ```js var app = jooby(); app.get('/', function () 'Hey Jooby!'); ```