SleepSort in Scala

SleepSort.scala

import scala.actors.Future
import scala.actors.Futures._

object SleepSort {
  def main(args: Array[String]) = {
    var sorted = List[Int]()
    var futures = for (a <- args) yield future {
      Thread.sleep(a.toInt * 1000)
      sorted :::= List(a.toInt)
      a.toInt
    }
    // Don't wait more than a minute
    awaitAll(60000, futures:_*)
    print(sorted.reverse)
  }
}