Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

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Each section contains 100 MCQs on Kotlin Program .

Which of the following is a feature of Kotlin?

A) Checked exceptions B) Null pointer exceptions C) Extension functions D) Multiple inheritance

Discuss

Answer & Solution

Answer: Option C

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

Which of the following is true about Kotlin's null safety?

A) Kotlin does not allow null values B) Kotlin uses the ! operator to denote nullability C) Kotlin uses the ? operator to denote nullability D) Kotlin uses the ?? operator to denote nullability

Discuss

Answer & Solution

Answer: Option C

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

Which of the following is true about Kotlin's type system?

A) Kotlin's type system is similar to Java's B) Kotlin's type system is more strict than Java's C) Kotlin's type system is less strict than Java's D) Kotlin's type system does not allow inheritance

Discuss

Answer & Solution

Answer: Option B

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

Which of the following is true about Kotlin's when expression?

A) It is similar to the switch statement in Java B) It is used to declare variables C) It can only be used with Boolean values D) It is used to handle exceptions

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Answer & Solution

Answer: Option A

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

How can we write a multi-line comment in Kotlin?

A) /* Comment */ B) // Comment C) # Comment D) None of these

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Answer & Solution

Answer: Option A

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

What is the purpose of the let() function in Kotlin?

A) To create a new instance of a class B) To modify the properties of an existing instance of a class C) To perform mathematical calculations D) To perform a null-check and execute code only if the value is not null

Discuss

Answer & Solution

Answer: Option D

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

In Kotlin, code statements must end with a semicolon (;)

A) TRUE B) FALSE

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Answer & Solution

Answer: Option B

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

Which of the following is true about Kotlin's data classes?

A) They must implement the Serializable interface B) They are final by default and cannot be extended C) They cannot have any properties D) They must implement the equals() and hashCode() methods

Discuss

Answer & Solution

Answer: Option D

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

What is the purpose of the inline keyword in Kotlin?

A) To allow a function to be called recursively B) To allow a function to be called from another module C) To allow a function to be inlined at the call site D) To allow a function to be declared as private

Discuss

Answer & Solution

Answer: Option C

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

What is the default inheritance of classes in Kotlin?

A) final B) open C) closed D) None of these

Discuss

Answer & Solution

Answer: Option A

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

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