Archieve tehnologies

Hi,
can any one help me about arhieve technologies.
I want to know fully about archieveing.Ex.Zip file format.

Sun's zip and jar API:
java.util.zip (Java Platform SE 6)
java.util.jar (Java Platform SE 6)

How to use Jar's (which are zip files)
Lesson: Packaging Programs in JAR Files (The Java™ Tutorials > Deployment)

thank u.......