How to create a jar file with named package example

hi,

i need to use a package(DB ConnectionString ..etc) as library for another project..so i was created a SQLite_DAL.jar file for a class which in package folder of another project. is it correct way?

if yes then how to use that class file of library/jar in another project..

if i was wrong, please give me a one example how to create a jar/library with named package and how to use it..

i am waiting for your replay..thank you in advance ...