kotlinWhen.kt

val random = Random
val randomNumber = random.nextInt()
val positiveInts = 1 .. Int.MAX_VALUE
val negativeInts = -1 downTo Int.MIN_VALUE
val zero = 0 .. 0

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

println("Number is $sign")