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Scala Interview Questions
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How does it work under-the-hood, when we create an instance of a Class without using ‘new’ keyword in Scala? When do we go for this approach?

 7

How many values of type Nothing have in Scala?

 7

In FP, What is the difference between a function and a procedure?

 7

What is the default Unit and Functional Testing Framework for Play? What is the default Build Tool for Play? What is the Default Template Engine for Play? What is the built-in Web Server available in Play Framework?

 7

What are the major differences between Scala’s Auxiliary constructors and Java’s constructors?

 7

What is the best Code-coverage tool available for Play and Scala based applications?

 7

What is guard in Scala’s for-comprehension construct?

 7

Does a Companion object access private members of it’s Companion class in Scala?

 7

What is the best Scala style checker tool available for Play and Scala based applications?

 7

What is an Anonymous Function In Scala? What is a Function Literal in Scala? What are the advantages of a Anonymous Function/Function Literal in Scala?

 7

What are the advantages of Play/Scala stack to develop web applications?

 7

How do we declare a private Primary Constructor in Scala? How do we make a call to a private Primary Constructor in Scala?

 7

What is Range in Scala? How to create a Range in Scala?

 7

How to implement interfaces in Scala?

 7

Why Scala is better than Java? What are the advantages of Scala over Java (Java 8)? Compare to Java What are the major advantages or benefits of Scala?

 7

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Un-Answered Questions { Scala }

What is list in scala collection?

1

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

7

What is vector in scala collection?

1

Explain the functionality of yield?

1

What is the difference between var and value?

7

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

7

In what ways that Scala is healthier than different programming language?

7

What is unapply method in scala?

7

How to define Factory methods using object keyword in Scala? What is the use of defining Factory methods in object?

7

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

7

How many operators are there in Scala and Why?

7

Explain the difference between java and scala?

1

What is a companion object in scala?

1

What are left and right in scala?

7

Why should I learn scala?

1

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