Usage of when

using_when.kt

package using_when

import kotlin.random.Random

fun main() {

    val a = Random.nextInt(2)

    when (a) {
        2 -> println("even")
        1 -> println("odd")
        // else not mandatory since when doesn't return any result
    }

    val b = Random.nextInt(3)

    val result = when(b) {
        3 -> 3 + 3
        2 -> 2 + 2
        1 -> 1 + 1
        else -> 0
    }

    println(result)
}