Java 3D API is a Java Media API that is a collection of Java API that defines and implements 3D objects, perspective, color and more.
Resources and links:
Java 3D API Tutorial
This Java 3D API tutorial introduces the main concepts of the Java 3D API, including many code samples, examples, and diagrams. You can view chapters online or download the PDF file. (PDF viewer available from Adobe) [Source: Java 3D Engineering]