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Scala Interview Questions
Questions Answers Views Company eMail

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 is auxiliary constructor in scala?

1

What does s method in scala string interpolation?

1

What does set in scala collection?

1

What are the Java’s OOP constructs not supported by Scala? What are the Scala’s OOP constructs not supported by Java? What are the new OOPs constructs introduced by Scala, but not supported by Java?

7

What is Nothing in Scala? What is Nil in Scala? What is the relationship between Nothing and Nil in Scala?

7

How do I append data in a list?

1

What is this in scala?

1

Explain the scala anonymous function.

1

What is 'Application' in Scala or What is Scala Application? What is 'App' in Scala? What is the use of Scala’s App?

7

What is a trait mixins in scala?

1

Why is an option used in scala?

1

How do we implement loops functionally? What is the difference between OOP and FP style loops?

7

Explain what is unit in scala?

1

What is the difference between Java’s 'If..Else' and Scala’s 'If..Else'?

7

How to create arrays in scala?

1

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