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object iterators {
def printArray(xs: Array[Double]) =
Iterator.fromArray(xs) foreach (x => System.out.println(x));
def findGreater(xs: Array[Double], limit: Double) =
Iterator.fromArray(xs)
.zip(Iterator.from(0))
.filter{case Pair(x, i) => x > limit}
.map{case Pair(x, i) => i}
def main(args: Array[String]) = {
val xs = List(6, 2, 8, 5, 1);
val ar = xs.copyToArray(new Array[Double](xs.length), 0);
printArray(ar);
findGreater(ar, 3.0) foreach { x => Console.print(x); };
}
}
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