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.ui.impl; 
				
				import org.j3de.ui.UIContainer;
				import org.j3de.ui.UIRootContainer;
				import org.j3de.ui.UILocalElement;
				import org.j3de.ui.UIElementMapper;
				
				public class DefaultRootContainer extends DefaultContainer implements UILocalElement {   
				  
				  public DefaultRootContainer(UIElementMapper elementMapper) {   
				    super(elementMapper);
				  }
				  
				  protected RemoteContainer getRemoteContainer() {   
				    return new RemoteRootContainer();
				  }    
				
				  private class RemoteRootContainer extends DefaultContainer.RemoteContainer implements UIRootContainer {
				    public UILocalElement getUILocalElement() {
				      return DefaultRootContainer.this;
				    }
				  }
				 
				}