Kotlin Kotlin Basics and Syntax 3

Question 1

What is the Elvis operator in Kotlin?

Accepted Answer

?:

Answer

!!

Answer

?.

Answer

::

Question 2

How do you declare a multiline string in Kotlin?

Accepted Answer

Using triple quotes """..."""

Answer

Using single quotes with

Answer

Using backticks `...`

Answer

Using angle brackets <...>

Question 3

Which function is used to convert a String to an Int in Kotlin?

Accepted Answer

toInt()

Answer

parseInt()

Answer

castInt()

Answer

Int(string)

Question 4

What is the default visibility modifier in Kotlin?

Accepted Answer

public

Answer

private

Answer

protected

Answer

internal

Question 5

Which statement about Kotlin's `when` expression is correct?

Accepted Answer

It can be used as both a statement and an expression

Answer

It only accepts integer values

Answer

It must have an `else` branch always

Answer

It requires break statements like Java's switch

Question 6

What does `for (i in 1..5)` iterate over in Kotlin?

Accepted Answer

1 to 5

Answer

1 to 4

Answer

2 to 5

Answer

0 to 5