[3] Java Dojo, Generics must know trick

Link to GitHub: github.com/Rut...
Link to Kata: github.com/Rut...
$ git clone [e-mail]:Rutger-van-Velzen/3.Generics-must-know-trick.git
What is a Code Dojo?
A Code Dojo is a place to learn for beginners and experienced developers alike. The idea behind it is that with the repetition of a Kata (lesson) one becomes more familiar with the act of applying it when needed. Like a martialists professional that knows all his moves by muscle memory.