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object Test {
def main(args: Array[String]) = {
val ary: Array[String] = Array("a", "b", "c")
val lst: List[String] = List("a", "b", "c")
val itr: Iterator[String] = lst.iterator
val str: Stream[String] = lst.iterator.toStream
Console.println(ary.zipWithIndex.toList)
Console.println(lst.zipWithIndex.toList)
Console.println(itr.zipWithIndex.toList)
Console.println(str.zipWithIndex.toList)
assert {
ary.zipWithIndex match {
case _: Array[Pair[_,_]] => true
case _ => false
}
}
val emptyArray = new Array[String](0)
val emptyList: List[String] = Nil
val emptyIterator = emptyList.iterator
val emptyStream: Stream[String] = Stream.empty
Console.println(emptyArray.zipWithIndex.toList)
Console.println(emptyList.zipWithIndex.toList)
Console.println(emptyIterator.zipWithIndex.toList)
Console.println(emptyStream.zipWithIndex.toList)
}
}
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