If you’ve been programming Java for a while, you probably use List, Set, and Map every day. But let’s be honest: most developers barely scratch the surface of what the Java Collections API can really do.

Motivation

Even in this day and age, when storage is comparatively cheap, it can still make sense to have it not to be wasted. We were looking for a comparatively cheap alternative within our project, to give a data set additional information that we display within the frontend, i.e. we have to …