TarodBOFH

fun main() {
 // You can do this
 val assignment = null ?: false
    val fromBlock = when(assignment) {
        true -> true
        false -> null
    } ?: false
 // Or this
 val computed = if (fromBlock && assignment) { true } else { null }
 // see the outputs

TarodBOFH

fun main() {
    println(null != null ?: false)
    val first = null // we don't know the type of this guy
    val second = null ?: false // this guy is a boolean!
    println(first != second)
    var notNullableGuy = first != second // this guy is a non nullable boolean
    notNullableGuy = false // we can do this
    println(notNullableGuy)
}

TarodBOFH

fun main(args: Array<String>) {
    println(null != null ?: false)
}