[Java] HelloWorld by Using Eclipse

Step by step:

1. Get Eclipse: Download Eclipse IDE for Java EE Developers from http://www.eclipse.org/. After downloading, please check its MD5 or SHA1. My downloaded version: Indigo Release.
   
2. Setup: Unzip the downloaded file by default. It is a directory and everything is in it. Setup workspace properly.
   
3. Create a new project: Select File > New > Java Project. Enter a project name into the Project name field, say "HelloWorld".
   
4. Create a new class: Right click HelloWorld project and select New > Class. Enter "HelloWorld" into the Name field.
   
5. In editor, write
   

   public class HelloWorld {
       public static void main(String[] args) {
           System.out.println("Hello World!");
       }
   }

6. Run and check the console.
   

Enjoy!