Question

How to generate random floating point numbers in Scala

Answer 1

import scala.util.Random

object RandomNumbersApp {

  def generateRandomNumbers(n: Int, lower: Double, upper: Double): Seq[Double] = {
    val rand = new Random()
    
    Seq.fill(n)(lower + (upper - lower) * rand.nextDouble())
  }

  def main(args: Array[String]): Unit = {
    val n = 10
    val lower = 0.0
    val upper = 3.0

    val randomNumbers = generateRandomNumbers(n, lower, upper)

    randomNumbers.foreach(num => print(f"$num%.6f "))
  }
}



/*
run:

0.320086 1.955785 1.704983 0.987569 2.511356 1.295754 2.202426 2.724272 0.125665 0.768359 

*/

 

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