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Scala

Scala

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Q1. Find the output of: println("frankl"||true))
1. This code doesn't exist
2. This code throws an error
3. 1
Q2. Which of these is/are paradigm of Scala programming?
1. Statistical type
2. All of the above
3. Functional
4. Object oriented
Q3. How to turn string "batmanstein" to string "man" in Scala?
1. "batmanstein”.drop(3).capitalize.take(3)
2. All of the above
3. "batmanstein”.drop(3).take(3).capitalize
4. None of the above
Q4. Which of these is true for apply/unapply methods?
1. All of the above
2. Apply lets us create objects from arguments
3. None of the above
4. Apply is like a constructor
Q5. Complete the definition: A closure is function:
1. whose return value is decided by a variable declared outside of it.
2. that returns another argument as function.
3. that takes another argument as function.
4. that returns a Future.
Q6. Define monad in Scala
1. An object that wraps another object
2. A single object
3. A single parameter function
4. All of the above
Q7. What does Scala stand for?
1. Scalable language
2. Scale language
3. Scalar language
4. Sequential language
Q8. Choose the incorrect way to make an executable Scala program.
1. Execute script file in the interpreter
2. None of the above
3. Compile objects with main method
4. Using an IDE
Q9. What will be the output for: println(40.getClass) ?
1. This causes a compilation error
2. Int
3. 65
4. This causes a runtime error
Q10. Which of these is not a Scala identifier?
1. Operative identifier
2. String identifier
3. Literal identifier
4. Alphanumeric identifier

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Programming Through Python

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