Futures

gistfile1.scala

import scala.util.{Success, Failure}
import scala.concurrent.Future
import scala.util.Random
import scala.concurrent.ExecutionContext.Implicits.global

object Futures extends App {

    val f: Future[String] = Future {
      Thread.sleep(Random.nextInt(200))
      "done..."
    }

    f onComplete {
      case Success(result) => println(result)
      case Failure(t) => println("An error has occured: " + t.getMessage)
    }

    val result = f

    Thread.sleep(1000)
}