Java tutorial
import java.io.IOException; import java.net.DatagramPacket; import java.net.DatagramSocket; public class Main { public static void main(String[] args) { try { byte[] buffer = new byte[1024]; DatagramPacket packet = new DatagramPacket(buffer, buffer.length); DatagramSocket socket = new DatagramSocket(5002); System.out.println("Waiting for a packet..."); socket.receive(packet); System.out.println("Just received packet from " + packet.getSocketAddress()); buffer = packet.getData(); System.out.println(new String(buffer)); } catch (IOException e) { e.printStackTrace(); } } }