Hi,

The Package is a mechanism for organizing the group of related files in the same directory. In our system, we arranges or organize files into different directories as per the functionality, usability and category. Similarly in Java programming language, A package is group of related types of classes & interfaces, that offers easy access, file protection and name space management to uses those classes and interfaces.

Hope this given link will help you to know more related to package in java.

http://www.roseindia.net/java/master-java/java-package.shtml