Scala Interview Questions & Answers
1. What is Scala?
Scala is an object functional programming and scripting language for general software applications designed to express solutions in a concise manner.
2. What is a ‘Scala set’?
Scala set is a collection of pairwise elements of the same type. Scala set does not contain any duplicate elements. There are two kinds of sets, mutable and immutable.
3. What is a ‘Scala map’?
Scala map is a collection of key or value pairs. Based on its key any value can be retrieved. Values are not unique but keys are unique in the Map.
4. What is the advantage of Scala?
a) Less error prone functional style
b) High maintainability and productivity
c) High scalability
d) High testability
e) Provides features of concurrent programming