True or False? In the Interpreter, you can define a new val with a name that was already used before.

What is the data type of myVariable in the following: val myVariable = if (true) "Hello"

Is it possible in Scala to declare a variable of type `Int` with a value of `null`?

What will the following function return: def foo(o:Any) = { o match { case Option(x) => "hi!" case anything => anything } } When passed a 'None' object?

`() => Unit` is best described as

What would be returned by the following function: def foo(l:List[Int]) = { var x=l.head; l.collect{ case a:Int if a>x => x=a; a }; x } When passed: List(2,4,6,8,6,3,1)

Despite using the same code, the different browser and database modules created really are separate modules. This means that each module has its own contents, including any nested classes. Which option is described by the above statements?

Regex class is available in the ................ package.

Which one is false about Case Class?

Choose the correct statement that describes an 'abstract sealed' class?

Scala is ................ with Java. The two languages are interoperable with each other.