ScalaProject.scala

object Main {
  def main(args:Array[String]) {
    //easy interfaces / mixins     
    trait Namable { val name:String; def greet:String = s"Hi $name!"}

    //lazy evaluation    
    trait Randomable { lazy val rand:Int = (math.random * 100).toInt }

    //easy class definition, support for mixins using traits     
    case class Person(name:String, favoriteLanguage:String) extends Namable with Randomable
    case class Superhero(name:String) extends Namable with Randomable

    //type aliases   
    type NamRam = Namable with Randomable

    val person:NamRam = Person("Alice", "Scala")
    //val person:Namable = Superhero("man")     

    //Pattern Matching   
    person match {
      case p @ Person(n, fl) => println(s"${p.greet} p.s. we like $fl too!" +
        s"Random number: ${p.rand}. (Still ${p.rand})")
      case sh @ Superhero(n) => println(sh.greet, sh.rand)
      case _ => println("hm...")
    }
    
  }
}