In the General tabbed pane you can perform these tasks:
Change the main class by choosing the new class from the Main Class drop down list.
From the Callback Handler Class menu, choose the CallbackHandler class that will
be used as an interface to gather user authentication data, or select Use Container-Managed
Authentication to use the container's default authentication user interface instead.
Click Description to edit the description of the application client.
Click Manifest Classpath to add a library JAR reference to the
Click Icons to select the icons that GUI tools will use to represent your component.
You can select only GIF or JPEG files that are either 16x16 or 32x32.