PrelimExam-PlatTech-Ch1-4

Kotlin is primarily designed to interoperate with which language?

• Python

• Java

• C++

• Ruby

Which company developed Kotlin?

• Microsoft

• JetBrains

• Google

• Oracle

Which function is used to print output in Kotlin?

• printOut()

• echo()

• println()

• display()

What is the output of println(5 + 3)?

• 8

• 5 + 3

• 53

• Error

Which symbol denotes a single-line comment in Kotlin?

• //

• /*

• #

What is the correct way to write a multi-line comment in Kotlin?

• //

• #...#

• /.../

Which keyword is used to declare a mutable variable in Kotlin?

• let

• var

• val

• const

What will happen if you try to change the value of a val variable?

• It will change successfully.

• It will throw an error.

• It will be ignored.

• It will create a new variable.

Which of the following is not a built-in data type in Kotlin?

• Int

• String

• Decimal

• Boolean

What is the range of an Int data type in Kotlin?

• -2^31 to 2^31-1

• -2^63 to 2^63-1

• 0 to 255

• -128 to 127

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