import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
public class GetDate {
final static int PortDayTime = 13; // well-known daytime port
public static void main(String args[]) throws Exception {
byte msg[] = new byte[256];
DatagramSocket dgSocket = new DatagramSocket();
InetAddress destination = InetAddress.getByName("web.mit.edu");
DatagramPacket datagram = new DatagramPacket(msg, msg.length,
destination, PortDayTime);
dgSocket.send(datagram);
datagram = new DatagramPacket(msg, msg.length);
dgSocket.receive(datagram);
String received = new String(datagram.getData());
System.out.println("The time in Cambridge is now: " + received);
dgSocket.close();
}
}