Question

How to pick a random value from a map in Scala

Answer 1

import scala.util.Random

object RandomPicker {
  def getRandomValue(inputMap: Map[Int, String]): String = {
    val values = inputMap.values.toVector
    val randomIndex = Random.nextInt(values.length)
    
    values(randomIndex)
  }

  def main(args: Array[String]): Unit = {
    val myMap = Map(
      1 -> "C++",
      2 -> "C",
      3 -> "Java",
      4 -> "C#",
      5 -> "Scala",
      6 -> "Python"
    )

    val randomValue = getRandomValue(myMap)
    println(s"Random value: $randomValue")
  }
}
 
 
 
/*
run:
 
Random value: Python
 
*/
 

 

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