caseclasses.scala

abstract class Person(name: String, birthDate: java.util.Date) 
  // nevhodny mutable typ java.util.Date
case class Man(var name: String, birthDate: java.util.Date, 
  impertinent: Boolean) extends Person(name, birthDate)
case class Woman(private val name: String, birthDate: java.util.Date, 
  quarrelsome: Boolean) extends Person(name, birthDate)
class XMan(name: String, birthDate: java.util.Date, impertinent: Boolean, 
  ability: String) extends Man(name, birthDate, impertinent)