GadgetRatty: Tip: Install & Run Multiple Different Versions of the same Java J2ME Program on your Mobile Device

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Tip: Install & Run Multiple Different Versions of the same Java J2ME Program on your Mobile Device

2008-03-16 05:14:58 by Abdul Aziz in Tech[dot]Blog

At times, you may want to run different versions of the same Java J2ME application simultaneously on your mobile device without overwriting the older version. You may want to do this when an older version of a program may have a feature that the latest version does not have.

Here is a step by step on how to go about doing it:

1. Download and install WinRar
2. Open the JAR file with WinRar
3. Open the folder META-INF and copy the MANIFEST.MF file to your computer
4. Open the MANIFEST.MF file with Notepad and modify the MIDlet-Name and MIDlet-Description fields to something different. For example, if the original name & description of the application is “Mobile GMail”, change it to “Mobile GMail 1″ or something else. Save the changes.
5. Copy the modified MANIFEST.MF into the META-INF folder and proceed with installing the program on your mobile device.