Kotlin MCQs with answers Page - 7

Here, you will find a collection of MCQ questions on Kotlin. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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Q. Which of the following is a Kotlin visibility modifier?

  • (A) open
  • (B) internal
  • (C) readonly
  • (D) package

A

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Q. Which Kotlin class is used for representing a pair of values?

  • (A) Tuple
  • (B) Pair
  • (C) List
  • (D) Map.Entry

A

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Q. Which of the following functions will return the number of characters in a string?

  • (A) size()
  • (B) count()
  • (C) length
  • (D) chars()

A

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Q. What does the keyword 'tailrec' indicate in Kotlin?

  • (A) Function returns a list
  • (B) Function has a default return type
  • (C) Function is tail-recursive
  • (D) Function throws an exception

A

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Q. How do you convert a Kotlin List to a MutableList?

  • (A) toMutableList()
  • (B) makeMutable()
  • (C) mutate()
  • (D) asMutable()

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Q. Which of the following is NOT a scope function in Kotlin?

  • (A) with
  • (B) let
  • (C) run
  • (D) do

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Q. What type of programming paradigm does Kotlin primarily follow?

  • (A) Functional
  • (B) Object-Oriented
  • (C) Procedural
  • (D) Object-Oriented and Functional

A

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Q. Which function in Kotlin can be used to check if a list is empty?

  • (A) isNull()
  • (B) hasNoElements()
  • (C) isEmpty()
  • (D) checkEmpty()

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Q. What is the supertype of all Kotlin classes?

  • (A) Any
  • (B) Object
  • (C) Base
  • (D) Super

A

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Q. Which method is used to sort a list in Kotlin?

  • (A) arrange()
  • (B) orderBy()
  • (C) sort()
  • (D) organize()

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