Enumerations in Java | Enum in Java

Published: 27 September 2021
on channel: Academy of Fine Learning
199
8

Enumerations serve the purpose of representing a group of named constants in a programming language. For example, the 4 suits in a deck of playing cards may be 4 enumerators named Club, Diamond, Heart, and Spade, belonging to an enumerated type named Suit. Other examples include natural enumerated types (like the planets, days of the week, colors, directions, etc.).
Enums are used when we know all possible values at compile time, such as choices on a menu, rounding modes, command line flags, etc. It is not necessary that the set of constants in an enum type stay fixed for all time.

In Java (from 1.5), enums are represented using enum data type. Java enums are more powerful than C/C++ enums. In Java, we can also add variables, methods and constructors to it. The main objective of enum is to define our own data types(Enumerated Data Types).

0:00 Intro
0:53 Quick Enum Example
4:40 Values() and ordinal() example
7:00 Enum outside the class example
9:50 Enum inside a class example
11:49 Enum values using constructors
15:24 Using Enum constructors
17:20 methods in Enum example
21:00 Theoretical discussions
25:05 Enum with Switch case example


On this page of the site you can watch the video online Enumerations in Java | Enum in Java with a duration of hours minute second in good quality, which was uploaded by the user Academy of Fine Learning 27 September 2021, share the link with friends and acquaintances, this video has already been watched 199 times on youtube and it was liked by 8 viewers. Enjoy your viewing!