java

Enums are classes

That represents an enumeration which is like a fixed set of constants. 

• Provides type-safe checking
• Is impossible to create an invalid enum type without a compile error 

A good example for enums are

• Days of the week
• Months of the year
• The cards in a deck

Sample

public enum Day {
MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY
​}

​Usage

In order to install Java JDK in Fedore, please follow this process

Required data

• development package = development java package that contains the JDK, which includes the JRE and its complements as the javac (the compiler)

Sample data

• development package = java-1.8.0-openjdk-devel.x86_64

Process

1. Get into the machine and execute this command