scala> def matchTypes(a: Any): String = a match {
     |   case n: String => s"$n is a string"
     |   case n: Int => s"$n is an integer"
     |   case n: Boolean => s"$n is a boolean"
     |   case _ => "some other type"
     | }
matchTypes: (a: Any)String

scala> matchTypes("hello")
res0: String = hello is a string

scala> matchTypes(124)
res1: String = 124 is an integer

scala> matchTypes(true)
res2: String = true is a boolean