Untitled

package o1.hofuncs

// This program is introduced in Chapter 6.1.

def printCube(n: Int) =
  println(n * n * n)

def printIfPositive(number: Int) =
  if number > 0 then
    println(number)

// Your task: implement this method so that “whatToDo” is executed on every integer in “numbers”.
def repeatForEachElement(numbers: Vector[Int], whatToDo: Int => Unit) =
  for rivitys <- numbers do
    whatToDo(numbers(???))
    println(rivitys.mkString("\n"))


@main def task7() =
  val exampleNumbers = Vector(5, 10, -20, -10, 5)
  println("Cubes:")
  repeatForEachElement(exampleNumbers, printCube)       // should print, on separate lines: 125, 1000, -8000, -1000, 125
  println("Positives:")
  repeatForEachElement(exampleNumbers, printIfPositive) // should print, on separate lines: 5, 10, 5