Scala Programming: Triplicate each element immediately next to the given list of integers

Scala Programming List Exercise-19 with Solution

Write a Scala program to triplicate each element immediately next to the given list of integers.

Sample Solution:

Scala Code:

object Scala_List {    
 def duplicate[A](o_list:List[A]):List[A] = {
    o_list flatMap { element => List(element, element,element) }
    }  
  def main(args: Array[String]): Unit = {
     val nums = List(1,2,3,3,4,5,6,7)
     println("Original List:")  
     println(nums)
     val duplicate_list1 = duplicate(nums)
     println("New list after triplicating each element immediately next to the said list:")
     println(duplicate_list1)     
    }
}

Sample Output:

Original List:
List(1, 2, 3, 3, 4, 5, 6, 7)
New list after triplicating each element immediately next to the said list:
List(1, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7)

Scala Code Editor :

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