Peer Discovery Protocol (PDP) for the Jxta Core Protocol (III)

!--google_ad_client = "pub-2947489232296736";/* 728x15, created in 08-4-23msdn/Google_ad_slot = "362 4277373 "; Google_ad_width = 728; Google_ad_height = 15; -->
!--google_ad_client = "pub-2947489232296736";/* 160x600, created in 08-4-23msdn/Google_ad_slot = "4367022601" ; Google_ad_width = 160; Google_ad_height = 600; --> or first use an example to explain it! :) This example shows how to discover other JXTA peers on the network. One . Application instance Source Code:DiscoveryDemo.java  1   Import java.util.enumeration;2   Import net. jxta.discovery.*;3   Import Net. jxta.exception.*;4   Import Net. jxta.peergroup.*;5   Import Net. jxta.protocol.*;6   7   public class Discoverydemo implements Runnable, Discoverylistener {8    9      static Peergroup Netpeergroup = null;10      Private Discoveryservice discovery;11  12     //Start configuration Jxta platform 13      private void Startjxta () {14          try {15               Netpeergroup = Peergroupfactory.newnetpeergroup ();16          }catch (peergroupexception e) {17  18              //If you cannot instantiate peer Group, export the reason and end the program. 19              System.out.println ("Fatal Error:group creation Failure"); 20               e.printstacktrace ();21               system.exit (1);22          }2324     //server found from peer group 25  &n