If you intent to share your Java classes with the world, it is suggested that you use your host's domain name in reverse as the start of your package name. For example, "edu.bucknell.hyde".

Reference: pages 346-352 in Java: How to Program by Deitel and Deitel, 8th edition, Prentice Hall, 2009 (pages 402-408 in 7th edition).

• To create a small personal library in a package, include a "package" statement before any imports in each of the library classes.

     package edu.bucknell.hyde;
  
     // imports
  
     public class Node {
        // ...
     }
  

• Create a directory structure that matches the package name. Assume we are in working directory WORK. Under WORK, we would have the following directory structure.

      WORK
        edu
          bucknell
            hyde
  

• Compile each of your library programs in the WORK directory using -d option. The period means to use the current directory.

       javac -d . Node.java
  

  This will place all the .class files in "hyde" directory.

• To use the classes in your new personal library. Add the following import statement which includes your package name and the class name.

     import edu.bucknell.hyde.Node;
  
     public class LinkedList {
  
          Node  p, q, r;
          // ...
     }
  

• Compile and run the program in the WORK directory.

     javac LinkedList.java
     java LinkedList