//
// demo of some simple functions on arrays implemented with collection methods
//

import scala.io.StdIn._

// get array of doubles from stdin, prompting for size first
def readArray() : Array[Double] = {
  println("enter number of values")
  val sz = readInt
  Array.fill(sz)( {
      println("next value?")
      readDouble
    })
}

// print array values 
def printArray(a:Array[Double]) {
  a.foreach(println(_))
}

// reduction functions from array-demo rewritten to use collection methods
// (but it doesn't really make sense to have such functions -- simpler to
// just use the collection methods directly)

def newSumArray(a:Array[Double]) : Double = {
  a.sum
}

def newProductArray(a:Array[Double]) : Double = {
  a.product
}

def newMaxArray(a:Array[Double]) : Double = {
  a.max
}

def newMinArray(a:Array[Double]) : Double = {
  a.min
}