How do I write a simple “Hello World” program?

To write a “Hello World” program follow these steps:

1. Start Eclipse.
2. Create a new Java Project:
   1. File->New->New Java Project.
   2. Enter a project name into the Project name field, for example, “Hello World Project“.
   3. Click “Finish“–It will ask you if you want the Java perspective to open. (You do.)
3. Create a new Java class:
   1. Click the “Create a Java Class” button in the toolbar. (this is the icon that looks the a green circle with a C in it with a tooltip that says “New Java Class.”)
   2. Enter “HelloWorld” into the Name field.
   3. Click the checkbox indicating that you would like Eclipse to create a “public static void main(String[] args)” method.
   4. Click “Finish“.
4. A Java editor for HelloWorld.java will open. In the main method enter the following line.
        System.out.println("Hello World");
5. Save using ctrl-s. This automatically compiles HelloWorld.java.
6. Click the “Run” button in the toolbar (looks like a white triangle in a green circle). The console will open and display “Hello World“.