catch Expression : Example

#170

scala> def getMark(subject: String):Int = {
     |    subject match {
     |       case "math" => 80
     |       case "science" => 75
     |       case _ => 70
     |    }
     | }
getMark: (subject: String)Int

scala>

scala> getMark("math")
res74: Int = 80

scala> getMark("history")
res75: Int = 70