Choose the correct statements that describe a Scala Case class?

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

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

Which one is false about Case Class?

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

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?

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)

`() => Unit` is best described as

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

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

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