'Hello World' - First Java Application

Source: http://java.sun.com/docs/books/tutorial/getStarted/cupojava/win32.html

Create your very first java application:

1. Download JDK and install it using default settings

2. Using Notepad, create a file named `HelloWorldApp.java`.
    Note: On this lesson we'll save all files on Desktop.

3. Edit `HelloWorldApp.java` and copy / paste this code:

/**
* The HelloWorldApp class implements an application that
* simply prints "Hello World!" to standard output.
*/
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

4. Start a Command prompt. Start > Run then type cmd then click ok
    Note: Make sure you are on Desktop directory, use `cd` command to do this.

5. On prompt, type: set PATH=C:\Program Files\Java\jdk1.6.0_13\bin\
    Note: Change the value of `jdk1.6.0_13` based on your JDK version

6. On prompt, type: javac HelloWorldApp.java

7. On prompt, type: java -cp . HelloWorldApp

This will simply display the text `Hello World!` on the command prompt.

Source: http://java.sun.com/docs/books/tutorial/getStarted/cupojava/win32.html