Any implementation of Map, i.e. two keys?

Question

I need a map that has two keys, e.g.

Map2 _employees;

So that I can

_empl         


        

Answer 1

The Spiffy Framework appears to provide exactly what you`re looking for. From the Javadocs:

A two-dimensional hashmap, is a HashMap that enables you to refer to values via two keys rather than one

The relevant class is TwoDHashMap. It also provides a ThreeDHashMap.