anonymous class in scala

Scala also supports java style syntax of defining anonymous classes. Take a look at this code snippet from Actor companion object definition in Actor.scala from scala actors library.

  /* Notice the argument of actor method, its a
   * no-arg(not empty arg list)
   * function that returns Unit */
  def actor(body: => Unit): Actor = {
    /* Here java style syntax of anonymous classes is being used.
     * we're creating an instance not of Actor class but a anonymous
     * subclass that is implementing a method act() which is declared
     * in trait Reactor(also its evident that its not mandatory to use
     * keyword override when implementing something from the trait)
     * and overriding scheduler. */
    val a = new Actor {
      def act() = body
      override final val scheduler: IScheduler = parentScheduler
    }
    /* also see that actor is started right here. */
    a.start()
    a
  }