The NetBeans IDE, product of Sun Microsystems, is a free, open-source integrated development environment written entirely in Java for software developers. NetBeans IDE supports developers providing all the tools needed to create all Java application types i.e. J2SE, web, enterprise and mobile applications. It runs on many platforms like Windows, Linux, Solaris and MacOS. It’s very easy to install the NetBeans IDE. The current version is NetBeans IDE 5.5.1, which was released in May 2007. This topic explains about installation steps of NetBeans 5.5.1 followed by creation of a simple application displaying “Hello World” in the standard output. This application will help you understanding the workflow of the application and IDE.