Sagem MY302X User Manual page 74

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If you do not want to enter the security menu, simply select "Back" button.
You can proceed by selecting "Ok" button.
The menu displayed allows you to increase or decrease permissions currently applied to the current MIDlet for each of the
security groups.
When you set a more permissive authorization to a security group than the current value, mobile phone asks you to
confirm your increased risk exposure.
The maximum risk exposure increase is limited by the security status. Depending of the manufacturing configuration, it
means, for example, that "Net Access" security group authorization cannot be set to a permissive value higher that "Session"
for an "uncertified" MIDlet ("Single confirmation" and "Always" are unavailable in the security configuration menu) but an
operator "certified" MIDlet may have all permission values available without any limitations.
What is Java™?
Java™ is a new technology enabling use of powerful applications in the mobile phone area. 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.
Such applications may be, for example, a wide range of games and appealing applications like action
and logic games, agenda, e-Mail reader, Web browser...
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 of 2 files:
-
-
JAD file stands for Java™ Application Descriptor. It is a small file describing the content of a JAR file (version, vendor name,
size...) and displayed by the mobile phone. JAD file size is usually less than 2 kilo-bytes large.
JAR file stands for Java™ Archive. It refers to the application data themselves (program, images, sound). A JAR file may
be up to 200 kilo-bytes large.
Note:
In rare circumstances, MIDlet vendors may provide no JAD file and the MIDlet is the JAR file alone. In such a case it
is your only responsibility to evaluate the risk to download the JAR file without possibility of consulting the JAD file.
74
The JAD file
The JAR file
Java™

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