Kotlin Kotlin Basics 3

Question 1

Which range expression creates an inclusive range from 1 to 10 in Kotlin?

Accepted Answer

1..10

Answer

1 until 10

Answer

range(1, 10)

Answer

1 to 10

Question 2

What is the result of `"Hello" + 42` in Kotlin?

Accepted Answer

Hello42

Answer

Compilation error

Answer

42Hello

Answer

Runtime error

Question 3

How do you check if a variable is of a specific type in Kotlin?

Accepted Answer

is

Answer

instanceof

Answer

typeof

Answer

checkType

Question 4

What is smart casting in Kotlin?

Accepted Answer

Automatic type casting after an `is` check

Answer

Manually casting types

Answer

Casting between numeric types

Answer

Converting nullable to non-null

Question 5

What does `Unit` represent in Kotlin?

Accepted Answer

The absence of a meaningful return value, similar to Java's void

Answer

A null value

Answer

A single-element collection

Answer

An unsigned integer

Question 6

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

Accepted Answer

toInt()

Answer

toInteger()

Answer

parseInt()

Answer

asInt()