Java Challengers #37 - Method Reference, BiFunction, Wrappers

Learn what happens when passing a method reference to a BiFunction. Find out also what happens with primitive and wrapper types.

Go deep into Java by having fun with the Java Challengers!

Get the code of the Java Challengers and run your own tests:

[AsgarJavadov]

It's worth-mentioning about if instead of 10D, 10.5 was passed and what kind of type inference issue it'd lead to.