Talk about hashcode, HashMap, TreeMap

This is the first of (hopefully) many meetings we are going to have.

We plan on having two presentations, each about 40 minutes.

1. "hashcode and HashMap (or why I am not an Oracle engineer)"
2. "TreeMap : deep dive in the underlying data structures and the programming techniques used by JDK developers".
3. Beer and discussion afterwards.

Everyone is invited and please spread the word!