Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

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Each section contains 100 MCQs on Kotlin Program .

What is the main purpose of the let function in Kotlin?

A) To facilitate null checks B) To execute a block of code and return a result C) To transform an object D) None of the above

Discuss

Answer & Solution

Answer: Option C

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

What is the purpose of the open modifier in Kotlin?

A) It allows a class to be instantiated. B) It makes a function available for overriding. C) It enforces strict typing for variables. D) It allows a function to be called only from within its own class.

Discuss

Answer & Solution

Answer: Option B

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

Which Kotlin construct allows a block of code to be executed a specific number of times?

A) for B) while C) repeat D) loop

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Answer & Solution

Answer: Option C

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

Which keywords are used to handle conditional statements in Kotlin?

A) if B) when C) Both A and B D) None of the above

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Answer & Solution

Answer: Option C

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

In Kotlin, what is the main purpose of the return keyword?

A) To declare a function B) To create a loop C) To terminate a function execution and return a value D) To define a class

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Answer & Solution

Answer: Option C

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

What is the primary use of the with function in Kotlin?

A) To create an extension function B) To apply multiple transformations to a collection C) To establish a scope in which an object's properties and functions can be accessed directly without specifying the object's name D) To create an anonymous function

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Answer & Solution

Answer: Option C

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

Which of these is not a loop structure in Kotlin?

A) for loop B) while loop C) until loop D) do-while loop

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Answer & Solution

Answer: Option C

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

What methods can be used to achieve abstraction in Kotlin?

A) Through abstract classes only B) Through interfaces only C) Through both abstract classes and interfaces D) None of the above

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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 is not a basic data type in Kotlin?

A) Boolean B) String C) Float D) Char

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Answer & Solution

Answer: Option B

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

Which property can be used to find the length of a string?

A) size B) length C) count D) charCount

Discuss

Answer & Solution

Answer: Option B

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

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