Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

1

What is the keyword used to define a destructor in Kotlin?

A) destructor B) dispose C) finalize D) destroy

Discuss

Answer & Solution

Answer: Option C

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

2

What keyword is used to define a nested class in Kotlin?

A) inner B) nested C) class D) outer

Discuss

Answer & Solution

Answer: Option B

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

3

Can an inner class have its own properties and methods?

A) No, it can only access the outer class's properties and methods B) No, it can only access the outer class's properties and methods and cannot have its own C) Yes, but it can only access the outer class's properties and methods, not have its own D) Yes, it can have its own properties and methods just like any other class

Discuss

Answer & Solution

Answer: Option D

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

4

How can an inner class access the outer class's properties and methods?

A) By using the "this" keyword B) By using the "outer" keyword C) By using the "parent" keyword D) By using the "super" keyword

Discuss

Answer & Solution

Answer: Option B

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

5

What keyword is used to create an instance of an inner class in Kotlin?

A) create B) new C) instance D) object

Discuss

Answer & Solution

Answer: Option B

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

6

How can you initialize variables in a primary constructor in Kotlin?

A) by using the var keyword B) by using the val keyword C) by using the constructor keyword D) by using the init keyword

Discuss

Answer & Solution

Answer: Option B

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

7

What is the syntax for defining a secondary constructor in Kotlin?

A) constructor(var name: String) B) constructor(val name: String) C) fun constructor(var name: String) D) fun constructor(val name: String)

Discuss

Answer & Solution

Answer: Option D

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

8

How can you call a primary constructor from a secondary constructor in Kotlin?

A) by using the this keyword B) by using the super keyword C) by using the constructor keyword D) by using the init keyword

Discuss

Answer & Solution

Answer: Option A

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

9

How can you pass parameters to a primary constructor in Kotlin?

A) by using the var keyword B) by using the val keyword C) by using the constructor keyword D) by using the init keyword

Discuss

Answer & Solution

Answer: Option B

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

10

What is the syntax for defining a constructor with default values in Kotlin?

A) constructor(var name: String = "default") B) constructor(val name: String = "default") C) fun constructor(var name: String = "default") D) fun constructor(val name: String = "default")

Discuss

Answer & Solution

Answer: Option B

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