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

Scala Interview Questions

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When can you use traits?

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

What are the advantages of case class?

What are the advantages of a anonymous function/function literal in scala?

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

What are left and right in scala?

What is the difference between call-by-value and call-by-name function parameters?

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

What is option/some/none design pattern in scala?

What is the difference between apply and unapply methods in scala?

Explain either/left/right design pattern in scala?

What is case object?

Compare to java what are the major advantages or benefits of scala?

What is unapply method in scala?

What are the advantages of scala over java (java 8)?

Un-Answered Questions { Scala }

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

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 higher-order functions in scala?

Like Java’s java.lang.Object class, what is the super class of all classes in Scala?

What is a closure?

What is bitset in scala?

What is Scala?

In Scala, Pattern Matching follows which Design Pattern? In Java, ‘isinstanceof’ operator follows which Design Pattern?

What is the result of x+y*z and why?

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

How Scala supports both Highly Scalable and Highly Performance applications?

What is the difference between call-by-value and call-by-name function parameters?

What does listmap in scala?

Explain what is unit in scala?

What is for-comprehension in scala?

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