traits-basic.scala

traits-basic.scala

trait Bird {
  val name: String
}

trait Flying {
  def flyMessage: String
  def fly() = println(flyMessage)
}

trait Swimming {
  def swim() = println("I'm swimming")
}

class Pigeon extends Bird with Flying {
  override val flyMessage = "I'm a good flyer"

  override val name = "Pigeon"
}

class Pigeon5 extends Bird with Swimming {
  val flyMessage = "I'm a awesome flyer"
  override val name = "Pigeon55"
}

val pigeon = new Pigeon with Swimming
pigeon.swim() // I'm swimming
pigeon.fly() // I'm a good flyer
pigeon.name // Pigeon

val pigeon5 = new Pigeon5 with Flying
pigeon5.swim() // I'm swimming
pigeon5.fly() // I'm a awesome flyer
pigeon5.name // Pigeon55

case class Human(name: String)
val asd = Human("Gustavo")
asd.name

sealed trait Skill
case class Swimmer(name: String) extends Skill with Swimming
case class SuperHuman(name: String) extends Skill with Flying {
  override def flyMessage: String = "I'm not a plane"
}
val dfg = Swimmer("swimmer")
dfg.swim() //I'm swimming
val qwe = SuperHuman("Asdf")
qwe.fly() //I'm not a plane