Sagem MY421Z User Manual page 74

287244723_my421Z_EN.book Page 74 Monday, October 6, 2008 4:15 PM
When you set a more permissive authorization to a security group
than the current value, the mobile phone asks you to confirm your
increased risk exposure.
The maximum risk exposure increase is limited by the security
status.
What is Java™?
Business applications and games are easily downloadable by the
end-user on a Java™ featured handset.
Your mobile phone is a MIDP 2.0 compliant Java™ platform which
implements WMA (SMS support) and MMAPI (Multimedia support)
options, providing an exciting environment to run highly graphical,
networked and intuitive MIDP applications.
What is a MIDlet?
A Java™ application or a game designed to run in a mobile phone
is named a MIDlet (MIDP applet).
A MIDlet is usually made up of 2 files:
- The JAD file
- The JAR file
JAD file stands for Java™ Application Descriptor. It is a small file
describing the content of a JAR file.
JAR file stands for Java™ Archive. It refers to the application data
themselves (program, images, sound). A JAR file can have a size of
up to 200 KB.
Note: In rare circumstances, MIDlet vendors may provide no JAD
file and the MIDlet is just the JAR file. In such a case it is your sole
responsibility to assess the risk of downloading the JAR file without
any possibility of consulting the JAD file.
Downloading a MIDlet (Java™ game or application)
MIDlets are easily downloaded to the mobile phone through the
Games or Applications menus or through the WAP browser. In
almost all cases, you will first receive a JAD file which will be
displayed on the screen.
When you select a JAD file, your mobile phone downloads it,
displays the data contained and prompts you to acknowledge the
JAR file download.
The popup displays information below:
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