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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 the use of Auxiliary Constructors in Scala?Please explain the rules to follow in defining Auxiliary Constructors in Scala?

7

What is the usage of isInstanceOf and asInstanceOf methods in Scala? Is there anything similar concept available in Java?

7

Why is an option used in scala?

1

What is the main motto of Scala Language?

7

List different types of literals available in scala?

1

What is function composition in scala?

1

What is try catch in scala?

1

Explain implicit classes with syntax?

1

What are the available Build Tools to develop Play and Scala based Applications?

7

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

7

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

7

What is a closure in Scala?

7

What is an Higher-Order Function (HOF)?

7

What is string interpolation in scala?

1

Does Scala support all Functional Programming concepts? Does Java 8 support all Functional Programming concepts?

7

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