GNU/Linux Eclipse Java Hello-World QuickStart
You are Welcome! The Tutorial shows you Step-by-Step How to Quick Start with a Hello-World Example in GNU/Linux Desktops.
And the Eclipse IDE for Linux is written in Java and it contains a base Workspace and an extensible Plug-in System for customizing the Environment.

1. Installing Eclipse Java IDE
How to Install Eclipse for Java Developers on Linux
2. Making Java Hellow World
Create a New Java Project.
Name it as HelloWorld.
Then Click on Finish.
Create a New Java Class.
Right-Click on src on the Package Explorer >> New >> Class
Name it as helloWorld and Check for main Method Creation.
On the main Section Enter the Hello World Greeting.
System.out.println("Hello World");
Ctr+S to Save.
3. Running Java Hellow World
Run Eclipse Java Hello-World.
And in the Console Output you should find the Greeting: