Java 3D Desktop Environment旨在使用Java 3D来创建一个3D桌面环境。功能包括：分布式的应用程序

				package org.j3de.behavior;
				
				import javax.media.j3d.TransformGroup;
				
				public abstract class DominantHandBehavior extends DeviceBehavior implements FocusAware {
				  public abstract void setTransformGroup(TransformGroup group);
				}