object Demo {

   def main(args: Array[String]) = {

      val num1 = Set(5,6,9,20,30,45)

      val num2 = Set(50,60,9,20,35,55)

​

      // find common elements between two sets

      println( "num1.&(num2) : " + num1.&(num2) )

      println( "num1.intersect(num2) : " + num1.intersect(num2) )

   }

}