Computer scienceProgramming languagesKotlinTypes and data structuresData types

Nullable and non-nullable types

Theory

What's your name?

Report a typo

You have the following snippet of code:

fun main() {
    var firstName = null
    val lastName = firstName
    firstName = "John"
    println("${firstName?.length} ${lastName?.length}")
}

What will it print?

Select one option from the list
___

Create a free account to access the full topic