Kotlin Programming MCQ for Competitive Exams, Interviews, and Certifications

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Each section contains 100 MCQs on Kotlin Program .

How do you declare a String in Kotlin?

A) val str: String = "Hello, World!" B) String str = "Hello, World!" C) val str = String("Hello, World!") D) String str = new String("Hello, World!")

Discuss

Answer & Solution

Answer: Option A

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

In Kotlin, how do you compare two Strings for equality?

A) str1 == str2 B) str1.equals(str2) C) Both A and B D) str1.sameAs(str2)

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Answer & Solution

Answer: Option C

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

How can you create a variable with the numeric value 5?

A) num = 5 int B) int num = 5 C) num = 5 D) val num = 5

Discuss

Answer & Solution

Answer: Option D

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

Which operator is used to add together two values?

A) The ADD keyword B) The * sign C) The & sign D) The + sign

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Answer & Solution

Answer: Option D

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

Which operator can be used to compare two values?

A) >< B) = C) <> D) ==

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Answer & Solution

Answer: Option D

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

Select the method to pass data back from an activity in Android for Kotlin

A) startActivity() B) startActivityForResult() C) ActivityForResult() D) None of these

Discuss

Answer & Solution

Answer: Option B

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

Which symbol is used for string templates/interpolation?

A) . B) * C) $ D) &

Discuss

Answer & Solution

Answer: Option C

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

What is the correct way to create an object called myObj of MyClass?

A) Main myObj = new MyClass(); B) MyClass.new myObj C) val myObj = MyClass() D) None of these

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Answer & Solution

Answer: Option C

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

How do you declare a nullable variable in Kotlin?

A) var name: String? B) var name: String C) var name: String = null D) String name = null

Discuss

Answer & Solution

Answer: Option A

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

How do you define a function in Kotlin?

A) fun myFunction() {} B) def myFunction() {} C) function myFunction() {} D) fun = myFunction() {}

Discuss

Answer & Solution

Answer: Option A

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

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