JAD (file format)
Encyclopedia
Java Application Descriptor (JAD) files describe the MIDlet
s (Java ME applications) that are distributed as JAR files
. JAD files are commonly used to package Java
applications or games that can be downloaded to mobile phones. Java applications enable mobile phones to interact functionally with online web services, such as the ability to send SMS
messages via GSM mobile Internet or interact in multiplayer games. Some BlackBerry
devices use JAD files for themes.
Recent midlets
contain a manifest file in the JAR archive
. This file contains much of the information stored in the JAD file, rendering it unnecessary in most cases.
.
MIDlet
A MIDlet is an application that uses the Mobile Information Device Profile of the Connected Limited Device Configuration for the Java ME environment...
s (Java ME applications) that are distributed as JAR files
JAR (file format)
In software, JAR is an archive file format typically used to aggregate many Java class files and associated metadata and resources into one file to distribute application software or libraries on the Java platform.JAR files are built on the ZIP file format and have the .jar file extension...
. JAD files are commonly used to package Java
Java (programming language)
Java is a programming language originally developed by James Gosling at Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities...
applications or games that can be downloaded to mobile phones. Java applications enable mobile phones to interact functionally with online web services, such as the ability to send SMS
SMS
SMS is a form of text messaging communication on phones and mobile phones. The terms SMS or sms may also refer to:- Computer hardware :...
messages via GSM mobile Internet or interact in multiplayer games. Some BlackBerry
BlackBerry
BlackBerry is a line of mobile email and smartphone devices developed and designed by Canadian company Research In Motion since 1999.BlackBerry devices are smartphones, designed to function as personal digital assistants, portable media players, internet browsers, gaming devices, and much more...
devices use JAD files for themes.
Recent midlets
MIDlet
A MIDlet is an application that uses the Mobile Information Device Profile of the Connected Limited Device Configuration for the Java ME environment...
contain a manifest file in the JAR archive
JAR (file format)
In software, JAR is an archive file format typically used to aggregate many Java class files and associated metadata and resources into one file to distribute application software or libraries on the Java platform.JAR files are built on the ZIP file format and have the .jar file extension...
. This file contains much of the information stored in the JAD file, rendering it unnecessary in most cases.
JAD mime type
The MIDP2 specification instructs that web servers should serve JAD files with a MIME type of "text/vnd.sun.j2me.app-descriptor". If this MIME type is not correctly configured, many phones will fail to install the MIDletMIDlet
A MIDlet is an application that uses the Mobile Information Device Profile of the Connected Limited Device Configuration for the Java ME environment...
.