File extension JAD is used byJava Application Descriptor files. These files contain metadata about java mobile edition applications (MIDlets) that can be downloaded from the Internet. Usually these applications are intended to be used on mobile phones. The applications themselves are contained in . File extension JAR archives.JAD files contain the following tags:MIDlet-1 - contains information about application name, icon and startup classMIDlet-Jar-Size - number of bytes in the application JAR fileMIDlet-Jar-URL - Internet address where application archive can be downloadedMIDlet-Name - redundant tag used to store application name onlyMIDlet-Vendor - information about the company that authored the MIDletMIDlet-Version - application version numberMicroEdition-Configuration - information about CLDC version required to run particular MIDletMicroEdition more... See more text