Kotlin MCQs with answers Page - 8

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. How do you declare a block of code that executes only once in Kotlin?

  • (A) block()
  • (B) once()
  • (C) object
  • (D) init

A

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Q. Which of these types is used to represent a value that may or may not exist?

  • (A) Optional
  • (B) Nullable
  • (C) Maybe
  • (D) Unknown

A

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Q. How do you define a multiline string in Kotlin?

  • (A) Using '''
  • (B) Using """
  • (C) Using \n
  • (D) Using +

A

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Q. Which Kotlin keyword is used to implement a delegate property?

  • (A) by
  • (B) as
  • (C) with
  • (D) to

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Q. What does 'lateinit' mean in Kotlin?

  • (A) Property is static
  • (B) Property is initialized later
  • (C) Property cannot be null
  • (D) Property is a function

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Q. Which class is used to define exceptions in Kotlin?

  • (A) Throwable
  • (B) Error
  • (C) RuntimeError
  • (D) Exception

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Q. Which of these is true about Kotlin interfaces?

  • (A) They can have default method implementations
  • (B) They cannot have properties
  • (C) They must be abstract
  • (D) They cannot be implemented

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Q. Which annotation is used to tell Kotlin to treat a function as Java static?

  • (A) @JvmStatic
  • (B) @Static
  • (C) @JavaStatic
  • (D) @KtStatic

A

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Q. Which function in Kotlin returns the last element of a list?

  • (A) tail()
  • (B) last()
  • (C) end()
  • (D) final()

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Q. Which Kotlin function can be used to repeat a task N times?

  • (A) repeat()
  • (B) loop()
  • (C) forEach()
  • (D) doRepeat()

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