Scala Interview Questions For Freshers

What is the syntax to define a function in Scala?

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What is the purpose of the main method in Scala?

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What is a companion object in Scala?

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What is a case class in Scala?

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Explain the concept of higher-order functions in Scala.

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What is an anonymous function in Scala?

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What is pattern matching in Scala?

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What is a literal in Scala?

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What is the difference between var and val in Scala?

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What are the basic data types in Scala?

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What is the difference between Scala and Java?

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What are the main features of Scala?

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What is Scala?

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Scala Intermediate Interview Questions

What is the difference between a function and a method in Scala?

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What is the purpose of the override keyword in Scala?

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What are first-class functions in Scala?

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What is the purpose of the sealed keyword in Scala?

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What is the difference between ArrayBuffer and ListBuffer in Scala?

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How are XML literals represented in Scala?

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What is the difference between a class and an object in Scala?

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What is the role of flatMap function in Scala collections?

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What is the difference between fold and reduce operations in Scala collections?

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What are the different ways to define an anonymous function in Scala?

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What is the difference between immutable and mutable collections in Scala?

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What is the purpose of the yield keyword in for comprehensions in Scala?

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What is parallel collection in Scala and how is it different from regular collections?

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What is the role of the until method in Range class in Scala?

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What is the role of the sealed trait in Scala?

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What is the difference between a tuple and a case class in Scala?

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What is the difference between def and val in Scala?

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What is a higher-kinded type in Scala?

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What is a partial function in Scala?

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What are implicit parameters in Scala?

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Explain the concept of currying in Scala.

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What is tail recursion in Scala and why is it important?

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What is lazy evaluation in Scala?

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Explain the concept of Option in Scala.

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What are traits in Scala and how are they different from abstract classes?

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How does Scala handle null values?

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What is the purpose of the yield keyword in Scala?

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What is the purpose of the apply method in Scala companion objects?

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Scala Interview Questions For Experienced

What is tail-call optimization in Scala?

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Explain the concept of self types in Scala.

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What is the role of the identity function in Scala?

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Explain the concept of implicit conversions in Scala.

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Explain the concept of type constraints in Scala.

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What is the difference between covariant and contravariant types in Scala?

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Explain the concept of variance annotations in Scala.

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What are higher-order types in Scala?

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What is the role of companion classes in Scala?

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What is the difference between parallel and asynchronous computations in Scala?

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Explain the concept of self-tail recursion in Scala.

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What is the purpose of the implicit class in Scala?

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Explain the concept of DSL (Domain Specific Language) in Scala.

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Explain the concept of structural types in Scala.

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Explain the concept of extractor objects in Scala.

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What is the purpose of the unapplySeq method in Scala?

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Explain the concept of type erasure in Scala.

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Explain the concept of package objects in Scala.

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Explain the concept of type parameters in Scala.

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What are the advantages of using Scala over other programming languages?

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What is the role of implicits in type classes in Scala?

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Explain the concept of Higher-Kinded Polymorphism in Scala.

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What are the different ways to handle exceptions in Scala?

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

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Explain the concept of variance in Scala.

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What is the role of type bounds in Scala?

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Explain the concept of Futures in Scala.

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What is Akka in Scala and what are its main features?

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What is the difference between var, lazy val, and def in Scala?

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Explain the concept of type classes in Scala.

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What are higher-kinded types in Scala and why are they useful?

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What are implicits in Scala and how are they used?

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Explain the concept of type inference in Scala.

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