Scala Programming Free Test

Q1. Which of these is/are paradigm of Scala programming?

Object oriented

All of the above

Statistical type

Functional

Q2. What will be the output for: println(40.getClass) ?

65

This causes a runtime error

Int

This causes a compilation error

Q3. Complete the definition: A closure is function:

that returns another argument as function.

that takes another argument as function.

whose return value is decided by a variable declared outside of it.

that returns a Future.

Q4. Which of these is true for apply/unapply methods?

Apply is like a constructor

Apply lets us create objects from arguments

None of the above

All of the above

Q5. Find the output of: println("frankl"||true))

1

This code throws an error

This code doesn't exist

Q6. Define monad in Scala

An object that wraps another object

All of the above

A single object

A single parameter function

Q7. Which of these is not a Scala identifier?

Alphanumeric identifier

String identifier

Operative identifier

Literal identifier

Q8. How to turn string "batmanstein" to string "man" in Scala?

All of the above

"batmanstein”.drop(3).capitalize.take(3)

None of the above

"batmanstein”.drop(3).take(3).capitalize

Q9. What does Scala stand for?

Scalar language

Sequential language

Scale language

Scalable language

Q10. Choose the incorrect way to make an executable Scala program.

Compile objects with main method

Execute script file in the interpreter

None of the above

Using an IDE

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