object Main {
  def main(args: Array[String]) {
      val l = List(new AClass, AnObject, ACompanionExample)
      l.map(a => a.autocorrect) // we're always calling autocorrect on the instance
      .foreach(println)
  }
 
}
 
trait Autocorrector {
  def autocorrect: String // this is abstract
}
 
class AClass extends Autocorrector {
  def autocorrect = "AClass autocorrect"
}
 
object AnObject extends Autocorrector {
  def autocorrect = "AnObject autocorrect"
}
 
class ACompanionExample
object ACompanionExample extends Autocorrector {
  def autocorrect = "CompanionExample autocorrect"
}
 

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