Scala demo with Tuple and Option and Pattern Matching and Exception

The Tuple is good for returning multiple values without creating a class. The maximum number of values is currently 22. Which means that there is actually a type called Tuple22!
The option is a good way to avoid NullPointer-Exceptions.
The Pattern Matching is good for evaluating values.
The Exception handling is using pattern matching!
Enjoy! :-)
Feel free to comment or ask questions.
The code is located here:

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