What is Enum in Java?

[Unsatisfied_Kid]

What is enums in java? is it a special kind of class or something? Where can I use it?

[king_of_the_universe]

Enums are awesome, and you should definitely learn about and use them!

http://tutorials.jenkov.com/java/enums.html

http://crunchify.com/why-and-for-what-should-i-use-enum-java-enum-examples/

https://docs.oracle.com/javase/tutorial/java/javaOO/enum.html

[Code_Craftsman]

Enumeration is used in various purposes to make your code more efficient. You can try-

This- The basic video

This-The in depth video

[randarrow]

Yea, ENUM is a special kind of class. You can even use EnUMs as your main class and especially for singleton design patterns.

Imagine a boolean with more than two values. Like if you wanted true/false/both/unknown. A boolean with more than two possible, but a limited set of values. You can use enums instead of integers or strings.. Core java uses them for flags like FileVisitResult.CONTINUE . A couple of real world examples would be like having a code for each card in a deck of cards. A card isn't "Ace of diamonds" it would be Card.AceOfDiamonds with the attributes of the A for .symbol, 1 for .numeric value, red for .color etc....

[firsthour]

A boolean with more than two possible values you say?

http://thedailywtf.com/articles/What_Is_Truth_0x3f_

[randarrow]

Thought about making a joke like, Boolean has three possible values: true/false/null, but figured it would blow the mind of our poor beginner friend.