Beginning Java 17 Fundamentals: Object-Oriented Programming in Java 17

© Kishori Sharan and Adam L. Davis 2022

K. Sharan, A. L. DavisBeginning Java 17 Fundamentalshttps://doi.org/10.1007/978-1-4842-7307-4_22

22. Enum Types

Kishori Sharan¹   and Adam L. Davis²

(1)

Montgomery, AL, USA

(2)

Oviedo, FL, USA

 

In this chapter, you will learn:

• What enum types are

• How to declare enum types and enum constants

• How to use enums in switch statements

• How to associate data and methods to enum constants

• How to declare nested enums

• How to implement interfaces to an enum type

• How to perform a reverse lookup for enum constants

• How to use EnumSet to work with ranges of enum constants

All example programs in this chapter are a member of a jdojo.enums module, as declared in Listing 22-1.

// module-info.java

module jdojo.enums {

    exports com.jdojo.enums; ...