kotlinWhen.kt

val random = Random
val randomNumber = random.nextInt()
val positiveInts = 1 .. Int.MAX_VALUE
val negativeInts = -1 downTo Int.MIN_VALUE

val sign = when(randomNumber) {
    in positiveInts -> "positive"
    in negativeInts -> "negative"
    else -> "zero"
}

println("Number is $sign")