Exception in threads "main" java.langNoClassDefFoundError: com/tanksoftware

hi

i am using eclipse3.2. i have created an application and i have download 3 jar files from the net.i have included these jar files in eclipse throught build path->Add external Archives..my application is working perfactly.i created a jar file with the help of eclipse now the problem is when i extract the jar file some of the java files doesnt have .class file.can anyone please tell me wht is the problem for this

by mebimathew

Message was edited by:

mebimathew

[502 byte] By [mebimathewa] at [2007-11-27 0:50:17]