Kotlin Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Kotlin Interview Questions

Questions Answers Views Company eMail

Does Kotlin support both Explicit conversion and Implicit conversions?

266

How does string interpolation work in Kotlin? Explain with a code snippet?

344

How many types of constructors are there ? What are they ?

179

What is the Elvis Operator?

197

Does Kotlin have the static keyword? How to create static methods in Kotlin?

208

What is the difference between val and var?

238

What is the difference between Return Type Unit and Return Type Nothing in Kotlin?

197

What kinds of programming does Kotlin support ?

171

Which is the default modifier for a method, variable, class?

236

What is init block in Kotlin?

265

How are Primary Constructors different from Secondary Constructors ?

185

What is the type of arguments inside a constructor? Why do you think they are val unless explicitly set to var?

293

How is a function declared? Why are Kotlin functions known as top-level functions?

258

What is the type of the following Array?, val arr = arrayOf(1, 2, 3);

322

How do you realize Ternary Conditional Operator in Kotlin ?

225

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Un-Answered Questions { Kotlin }

Define when expression?

180

List some of the key modifiers in kotlin?

330

Is kotlin strongly typed?

244

How to declare volatile variable ?

175

What is a const? How does it differ from a val?

229

What is the use of function extension ?

294

What is the equivalent of switch expression in Kotlin? How does it differ from switch?

363

Why do we need write open before class name in Kotlin while working on inheritance?

239

Define high order functions in Kotlin?

160

Is there Ternary Conditional Operator in Kotlin like in Java ?

194

What does "Null Safety" mean in Kotlin?

213

Is there any dependency of Secondary Constructors on Primary Constructors ?

220

What kinds of programming does Kotlin support ?

171

How many constructors are available in Kotlin?

219

Explain the Main features of kotlin which are not available in java?

218

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