Computer scienceProgramming languagesKotlinTypes and data structuresCollections

Collections as interface

Add books to collection

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Suppose you have a function:

fun uniteBookLists(books1: MutableCollection<String>, books2: Collection<String>): Boolean {
    return books1.addAll(books2)
}

fun main() {
    val books1 = mutableSetOf("The Sound and the Fury", "The Wild Palms")
    val books2 = listOf("Light in August", "As I Lay Dying")

    println(uniteBookLists(books1, books2))
}

What will println() output? Choose one correct option.

Select one option from the list

[The Sound and the Fury, The Wild Palms, Light in August, As I Lay Dying]

[Light in August, As I Lay Dying, The Sound and the Fury, The Wild Palms]

false

[The Sound and the Fury, The Wild Palms]

true

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