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Scala Interview Questions
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What is object in Scala? Is it a singleton object or instance of a class?

 7

What is the main design decision about two separate keywords: class and object in Scala? How do we define Instance members and Static members in Scala?

 7

How many values of type Unit have in Scala?

 7

What is the use of ‘yield’ keyword in Scala’s for-comprehension construct?

 7

What is call-by-name? Does Scala and Java support call-by-name? What is the difference between call-by-value and call-by-name function parameters?

 7

Which IDEs support Play and Scala-Based Applications Development and how?

 7

What is an Higher-Order Function (HOF)?

 7

What are the differences between Case class and Normal Class?

 7

What is a Companion Object in Scala? What is a Companion Class in Scala? What is the use of Companion Object in Scala?

 7

When compare to Normal Class, What are the major advantages or benefits of a Case-class?

 7

What are the Scala Features?

 7

What is 'Type Inference' in Scala?

 7

What is Unit in Scala? What is the difference between Java’s void and Scala’s Unit?

 7

How Scala solves Inheritance Diamond Problem automatically and easily than Java 8?

 7

What is ‘scala trait’ in scala?

 7

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Un-Answered Questions { Scala }

What do you mean by “type inference” in scala?

1

What is the best Framework to generate REST API documentation for Scala-based applications?

7

What is implicit class in scala?

1

What is a monad in scala?

1

What is case class? What is case object? What are the Advantages of case class?

7

What language is scala written in?

1

Explain the main difference between List and Stream in Scala Collection API? How do we prove that difference? When do we choose Stream?

7

What is akka in scala? Explain

1

List the default imports are available in scala language?

1

Describe loops in scala?

1

What are the popular JVM Languages available now?

7

What is the syntax for function declaration in scala?

1

Explain extend keyword?

1

What does raw method in scala string interpolation?

1

What is this in scala?

1

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