Kotlin MCQs with answers Page - 9

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 Kotlin keyword is used to define a custom getter or setter?

  • (A) getset
  • (B) field
  • (C) accessor
  • (D) property

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Q. Which of the following can be used to create a thread in Kotlin?

  • (A) Thread()
  • (B) startThread()
  • (C) createThread()
  • (D) threadOf()

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Q. Which Kotlin function combines map and flatten operations?

  • (A) combine()
  • (B) flatMap()
  • (C) mapFlat()
  • (D) collapse()

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Q. What will be the output of `val list = listOf(1, 2, 3); println(list.first())`?

  • (A) 3
  • (B) 2
  • (C) 1
  • (D) Error

A

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Q. Which function is used to generate a range of numbers in Kotlin?

  • (A) range()
  • (B) 1 to 10
  • (C) generate()
  • (D) loop()

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Q. What is the Kotlin equivalent of Java's static methods?

  • (A) final
  • (B) object
  • (C) companion object
  • (D) static class

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Q. What is the output of `val a = null ?: "default"`?

  • (A) null
  • (B) a
  • (C) default
  • (D) Error

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Q. Which Kotlin function allows you to transform and return a new list?

  • (A) map()
  • (B) filter()
  • (C) forEach()
  • (D) take()

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Q. What is the output of `println("Hello" is String)`?

  • (A) true
  • (B) false
  • (C) Error
  • (D) String

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Q. What is returned by the 'filter' function in Kotlin?

  • (A) A new collection
  • (B) A string
  • (C) A boolean
  • (D) The original list

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