After you have installed NetBeans IDE and the Mobility Pack, creating a new project is your next step in developing a mobile application. The IDE does the following upon creation of a Mobility project:
Creates a source tree optionally containing a simple MIDlet.
Selects an appropriate emulator platform for your project. Normally, the bundled J2ME Wireless Toolkit platform is selected.
Sets the project runtime and compile-time classpath.
Creates a build script that contains commands for running, compiling (including mobile-specific tasks such as preprocessing, preverification, and obfuscation), debugging, and building Javadoc.