Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

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Each section contains 100 MCQs on Kotlin Program .

Functions in Kotlin are created with the following keyword?

A) void B) fun C) function D) def

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

What is the default return type of any functions defined in Kotlin?

A) Int B) Double C) void D) Unit

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The 'when' statement in Kotlin is similar to which statement in other programming languages?

A) if B) break C) switch D) continue

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which keyword is used to indicate that a class can be subclassed?

A) public B) protected C) internal D) open

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What does the lateinit keyword in a variable declaration indicate in Kotlin code?

A) The variable is never initialized. B) The variable is only initialized at app runtime. C) The variable is automatically initialized to null. D) The variable will be initialized later. I promise!

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which Gradle configuration indicates the most recent API level your app has been tested with?

A) minSdkVersion B) compileSdkVersion C) targetSdkVersion D) testSdkVersion

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which of the following accessibility tools comes built in with most Android devices?

A) In Android Studio, Refactor > Add RTL support where possible B) Accessibility Scanner C) TalkBack D) Lint

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A View can contain any number of View or ViewGroup as its children. True or false?

A) True, View can contain any number of View or ViewGroup. B) False, View can have exactly 1 child.

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following visibility attribute values, if set on a view, makes it so the view is hidden and does not take up any space in the layout?

A) visible B) invisible C) gone D) hide

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which one of the following statements is true about Button views?

A) A Button view is a ViewGroup. B) You can only have three Button views per screen. C) Button views are clickable, and on click, the attached click listener performs an action. D) Button is an extension of ImageView.

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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