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Scala Interview Questions
Questions Answers Views Company eMail

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 are the Popular Scala-Based Frameworks to develop RESTful Web Services or REST API?

 7

What is function currying in Scala?

 7

What are the popular MVC frameworks for Scala Language to develop Web Applications?

 7

Mention the difference between an object and a class ?

 7

What is the equivalent construct of Scala’s Option in Java SE 8? What is the use of Option in Scala?

 7

What are the Scala variables?

 7

What is the difference between :: and #:: in Scala? What is the difference between ::: and #::: in Scala?

 7

Explain ‘Scala higher order’ functions?

 7

What are the four types of scala identifiers ?

 7

What is SBT? What is the best Build Tool to develop Play and Scala Applications?

 7

What are option, some and none in scala?

 7

Why scala prefers immutability?

 7

How Scala supports both Highly Scalable and Highly Performance applications?

 7

What is Option in Scala? What are Some and None? What is Option/Some/None Design Pattern in Scala?

 7

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Un-Answered Questions { Scala }

What is REPL in Scala? What is the use of Scala’s REPL? How to access Scala REPL from CMD Prompt?

7

Explain what is Scala?

7

What is anonymous (lambda) function in scala?

1

How to implement interfaces in Scala?

7

What is the difference between a java future and a scala future?

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 Either in Scala? What are Left and Right in Scala? Explain Either/Left/Right Design Pattern in Scala?

7

What are the four types of scala identifiers ?

7

What are case classes in scala?

1

What does s method in scala string interpolation?

1

What is the Relationship between equals method and == in Scala? Differentiate Scala’s == and Java’s == Operator?

7

How do we make a call to a private primary constructor in scala?

7

Does Scala support Operator Overloading? Does Java support Operator Overloading?

7

What is the current latest version of scala? What is the major change or update in scala 2.12?

7

What are option, some and none in scala?

7

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