Teach Yourself Java in 21 Days

Creating a Java Application

Let’s start by creating a simple Java application: the classic Hello World example that all language

books use to begin.

As with all programming languages, your Java source files are created in a plain text editor, or

in an editor that can save files in plain ASCII without any formatting characters. On Unix,

emacs, ped, or vi will work; on Windows, Notepad or DOS Edit are both text editors.

Fire up your editor of choice, and enter the Java program shown in Listing 1.1. Type this

program, as shown, in your text editor. Be careful that all the parentheses, braces, and quotes

are there.