Use the Add Libraries dialog to add libraries or resources to your project's classpath. You can also use this dialog to edit libraries by adding or removing JAR files, library sources, and javadocs.
You open the Add/Edit Libraries dialog by choosing File > <active
project name> Properties. In the Project Properties dialog, select
Build Libraries
& Resources and click the Add Library button.
To add a library:
Select a library from the list of installed libraries and click Add Library.
To edit a library: