Kotlin Basics

Kotlin Basics - Important Points

A. The answer is + answer

B. The answer is $answer

C. The answer is {answer}

D. The answer is [answer]

A. fun myFunction()

B. fun myFunction(): String

C. fun myFunction(): Int = 42

D. All of the above

A. {x, y -> x + y}

B. (x, y) => x + y

C. [x, y] -> x + y

D. (x, y) -> {x + y}

A. ??

B. ::

C. !!

D. //

A. All types in Kotlin are nullable by default.

B. Only reference types in Kotlin can be nullable.

C. All types in Kotlin are non-nullable by default.

D. Nullable types cannot be used in Kotlin.