Scala Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Scala Interview Questions

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

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?

How many values of type Unit have in Scala?

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

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?

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

What is an Higher-Order Function (HOF)?

What are the differences between Case class and Normal Class?

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

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

What are the Scala Features?

What is 'Type Inference' in Scala?

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

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

What is ‘scala trait’ in scala?

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Un-Answered Questions { Scala }

What is scala map function?

What is a ‘Scala set’? What square measure ways through that operation sets square measure expressed?

What is seq in scala collection?

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?

What is the current latest version of Scala?

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

What are implicit parameters in Scala?

What are case classes in scala?

What is a function named parameter in scala?

How many public class files are possible to define in Scala source file?

What is a ‘Scala map’?

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

What are the four types of scala identifiers ?

What is function composition in scala?

Explain ‘Scala higher order’ functions?

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