MyStream.scala

object MyStream {

  def main(args: Array[String]): Unit = {
    range(1, 10).take(10).print
  }

  private[this] def range(start: Int, end: Int): Stream[Int] = {
    if(start >= end) {
      Stream.empty
    } else {
      Stream.cons(start, range(start + 1, end))
    }
  }
}