Exercise: Using when
What will be the result of the following expressions?
private val magicNumbers = listOf(7, 13)
fun name(a: Any?): String = when (a) {
null -> "Nothing"
1, 2, 3 -> "Small number"
in magicNumbers -> "Magic number"
in 4..100 -> "Big number"
is String -> "String: $a"
is Int, is Long -> "Int or Long: $a"
else -> "No idea, really"
}
fun main() {
println(name(1)) // ?
println(name("A")) // ?
println(name(null)) // ?
println(name(5)) // ?
println(name(100)) // ?
println(name('A')) // ?
println(name("1")) // ?
println(name(-1)) // ?
println(name(101)) // ?
println(name(1L)) // ?
println(name(7)) // ?
println(name(3)) // ?
println(name(3.0)) // ?
println(name(100L)) // ?
}
Once you are done with the exercise, you can check your solution here.
