gistfile1.scala

class PongActor extends Actor {
    def act() {
      val y = 4
      loop {
        react { 
          case Ping(2) =>
            println("got ping(2)")
            sender ! Pong
          case Ping(y) =>
            println("got ping(y)")
            sender ! Pong
          case Ping(x) =>
            println("got ping: " + x)
            sender ! Pong
          case Stop =>
            println("got stop")
            exit()
        }
      }
    }
  }