Get started with Groovy enums through 12 tested examples. Learn enum constants, methods, constructors, interfaces, and best practices. Complete guide for Groovy 5.x. “If you’re using magic strings or integer constants to represent a fixed set of values, you’re writing bugs that haven’t happened yet. Enums exist to make impossible states impossible.” Joshua Bloch, Effective Java Last Updated: March 2026 | Tested on: Groovy 5.x, Java 17+ | Difficulty: Beginner to Intermediate | Reading Time: 18 minutes Using strings like ... Read More