Working with Groovy maps is simple once you see these 12 practical examples. Create, access, iterate, filter, and transform maps. Complete tutorial tested on Groovy 5.x. “A map is the Swiss Army knife of data structures. Once you learn to wield it, you’ll reach for it instinctively in every project.” Fred Brooks, The Mythical Man-Month Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Beginner to Intermediate | Reading Time: 20 minutes If you’ve been writing ... Read More