kotlin - when

When

package examples

fun main() {

    var name = "John"

    val greet = when(name) {

        "John" -> "Hello John"

        else -> "Unknown"

    }

    println(greet)

}

When + if else

package examples

fun main() {

    val i = 50

    val s = when(i) {

        in 0..50 -> "0-50"

        in 51..100 -> "51-100"

        else -> if (i in 101..150) "101-150" else "Out Of Range"

    }

}