object Demo {

   def main(args: Array[String]) = {

      val colors = Map("red" -> "#FF0000", "azure" -> "#F0FFFF", "peru" -> "#CD853F")

​

      if( colors.contains( "red" )) {

         println("Red key exists with value :"  + colors("red"))

      } else {

           println("Red key does not exist")

      }

​

      if( colors.contains( "maroon" )) {

         println("Maroon key exists with value :"  + colors("maroon"))

      } else {

         println("Maroon key does not exist")

      }

   }

}