how to install .jar files

[oxywaddle]

"Here's a simple rundown/walkthru of how to open/install a .JAR on your Blackberry:"
I just installed BlueFTP on my 8300

[gunterulf]

Hi mindphreak,
your message from 2008 is perhaps outdated, however I did not find an actual solution to the following "install .jar" issue: I manged to install the WeTravel.jar file to the SD-Card as well as to Device-Memory/home/user folder.
However if I try to run it I get the message.... MIDlet-Install-Notify attribute is invalid. Is there some workaround?
Thanks
gunterulf

[wizard222]

my device doesn't show the removable disk so i can't paste the .jar file......please help (i'm new on blackberry)

[wizard222]

i have downloaded the IQ light App the i've transferred it to my blackberry storm using the roxio it installed successfully but when i started the app it showed (Error strarting IQ_Light_French: Symbol 'CommandListner.b' not found.)
What Should I Do Please heeeeeeeeeeelpppp me

[DDON]

No explore on bold 2

[caitlin dunn]

I have installed a jar file but now I come up with error message:
uncaught exception: java.langnoclassDef FoundError.

How do I correct this?

Thanks,
Caitlin