Extracting Needed Class from Library?

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Hi Proj....
I have this problem.. If i create an app, the whole of ejsBasic.jar is attached to it. But it has caused the file to be too huge.. Therefore i was thinking if theres a way i can extract the needed java classes instead of the whole 2MB library file. From what ive seen. My 14kb App becomes 2MB after attaching the required library files. Im asking this because i would need to upload them to the internet for students. But this causes the loading time to far exceed the normal loading time. Hope to hear from you soon. Thanks