When using pattern matching, which character matches on any object?

You have created an array using val. Can you change the value of any element of the array—and why or why not?

What do you call objects with immutable state?

You have written a Scala script. How would you access command-line arguments in the script?

What does this code return? val x = 3; if (x > 2) x = 4 else x = x*2

Which statement returns a success or a failure indicator when you execute this code? val MyFuture = Future {runBackgroundFunction() }

True or False? Multiple classes can be imported from the same package by enclosing them in curly braces {}.

Scala is:

What would be the result of: Option[String]("hi") match { case None=> "hello!" }

What is an expression following the "if" keyword?

True or False? Methods taking one argument can be used with infix syntax?