Answer:
class -files and auxiliary resources
Explanation:
JAR stands for Java Archive which allows one to make multiple file bundles into a single file which is archive file and these JAR files contains in them the the auxiliary resources and the class files.
The archive file allows us to be storage efficient by compressing our data and files.
These files also allows us to transform our software into extensions as well.
For the enforcement of consistency of version of the packages, these files can be sealed optionally.
