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?

Scala bytecode can run on top of Java VM. What is the fundamental difference between Java object.clone() and Scala object.copy()?

What is one way to avoid low-level parallelization details?

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"

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

Which statement about List is false?