Which one of the following options is equivalent to the code below? for { x <- 1 to 10 y <- 1 to 10 } yield (x,y)

When Extractor object is using the match statement, the unapply method will be __ executed.

Which one is not valid in Scala?

Often a module is too large to fit comfortably into a single file. When that happens, you can use traits to split a module into separate files. Which one is described by the above statement?

Which one describes using Scala class that is defined in a package object from Java?

Correct statements that describe a Scala Case class?

Which statement about the Option[+A] class is false?

Which of these are NOT ways in which case classes differ from standard classes?

Which predicate tests whether x is object identical to y?

Are parenthesis `(` and curly braces `{` interchangeable?

What is a lazy var?