help me .... class jpcapwriter!!!!!!!!!

[Damien Legrand]

i use jpcap classe for captured packet but i don't arrive to save the
packets in a file with the method jpcapwriter...
i dont know java. help me !
thanks.

class jpcapwriter doc :

http://netresearch.ics.uci.edu/kfujii/jpcap/doc/javadoc/jpcap/package-summary.html

my code is that :

import jpcap.*;

class Tcpdump implements JpcapHandler
{
public void handlePacket(Packet packet){
System.out.println(packet);
}
public static void main(String[] args) throws
java.io.IOException{
String[] lists=Jpcap.getDeviceDescription();
System.out.println("Start capturing on "+lists[0]);
Jpcap jpcap=Jpcap.openDevice(Jpcap.getDeviceList()[0],1000,false,20);
//jpcap.setFilter("host 132.147.47.98",true);
jpcap.loopPacket(-1,new Tcpdump());
}
}