The IDE uses an Ant build script to build your Java applications. If you are
using a , the IDE generates the build script based on
the options you enter in the project's Project Properties dialog box. If you
are using a , the IDE uses your existing Ant build script.
Building Standard Projects
With standard Java projects, you can customize the build process by doing any
of the following:
Enter basic options, such as classpath settings and JAR filters, in the
Project Properties dialog box.
Override IDE-generated Ant targets or create new targets in build.xml.
Edit properties in project.properties to change the name and location
of build output directories and files.