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package examples
object iterators {
def Array(elems: Double*): Array[Double] = {
val ar = new Array[Double](elems.length)
for (i <- 0 until elems.length)
ar(i) = elems(i)
ar
}
def printArray(xs: Array[Double]) =
xs.iterator foreach { x => println(x) }
def findGreater(xs: Array[Double], limit: Double) =
xs.iterator
.zip(Iterator.from(0))
.filter{case Pair(x, i) => x > limit }
.map{case Pair(x, i) => i}
def main(args: Array[String]) {
val ar = Array/*[Double]*/(6, 2, 8, 5, 1)
printArray(ar)
println("Elements greater than 3.0:")
findGreater(ar, 3.0) foreach { x => Console.println(ar(x)) }
}
}
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