https://DevOpsCloud.io -- Cloud Monk Losang Jinpa, Ph.D., MCSE/MCT, GitOps DevOps Engineer

Java EnumMap is a specialized Java Map implementation that uses enum constants as keys. It provides a high-performance, type-safe alternative to using regular Java HashMap or Java TreeMap when the keys are of enum type. EnumMap is part of Java's java.util package and is optimized for use with Java Enum types. Introduced in Java 2004 with Java 5, EnumMap allows developers to create efficient mappings based on predefined enum constants.

https://docs.oracle.com/javase/8/docs/api/java/util/EnumMap.html