Java tutorial
import java.net.DatagramPacket; import java.net.DatagramSocket; import java.net.InetAddress; public class Main { public static void main(String args[]) { try { InetAddress ia = InetAddress.getByName("www.java2s.com"); DatagramSocket ds = new DatagramSocket(); byte buffer[] = "hello".getBytes(); DatagramPacket dp = new DatagramPacket(buffer, buffer.length, ia, 80); // Send the datagram packet ds.send(dp); System.out.println(ds.getSoTimeout()); } catch (Exception e) { e.printStackTrace(); } } }