Examples of DatagramSocket

io.vertx.core.datagram.DatagramSocket
A Datagram socket which can be used to send {@link DatagramPacket}'s to remote Datagram servers and receive {@link DatagramPacket}s . Usually you use a Datragram Client to send UDP over the wire. UDP is connection-less which means you are not connected to the remote peer in a persistent way. Because of this you have to supply the address and port of the remote peer when sending data. You can send data to ipv4 or ipv6 addresses, which also include multicast addresses. @author Norman Maurer
java.net.DatagramSocket
This class represents a socket for sending and receiving datagram packets.
A datagram socket is the sending or receiving point for a packet delivery service. Each packet sent or received on a datagram socket is individually addressed and routed. Multiple packets sent from one machine to another may be routed differently, and may arrive in any order.
UDP broadcasts sends are always enabled on a DatagramSocket. In order to receive broadcast packets a DatagramSocket should be bound to the wildcard address. In some implementations, broadcast packets may also be received when a DatagramSocket is bound to a more specific address.
Example: DatagramSocket s = new DatagramSocket(null); s.bind(new InetSocketAddress(8888)); Which is equivalent to: DatagramSocket s = new DatagramSocket(8888); Both cases will create a DatagramSocket able to receive broadcasts on UDP port 8888. @author Pavani Diwanji @version 1.101, 06/08/06 @see java.net.DatagramPacket @see java.nio.channels.DatagramChannel @since JDK1.0

Examples of java.net.DatagramSocket

   @version $Revision: 1.5 $
 */
public class McastTest {


    public static void main(String args[]) {  
  DatagramSocket  sock;
  DatagramPacket  packet;
  byte[]          buf=new byte[0];
  boolean         receiver=true;
  String          val;
  InetAddress     addr=null;
  int             port=0;


  
  for(int i=0; i < args.length; i++) {
      val=args[i];
      if("-help".equals(val)) {
    help();
    return;
      }
      if("-sender".equals(val)) {
    receiver=false;
    continue;
      }
      if("-receiver".equals(val)) {
    receiver=true;
    try {
        addr=InetAddress.getByName(args[++i]);
        port=Integer.parseInt(args[++i]);
    }
    catch(Exception e) {
        System.err.println(e);
        help();
        return;
    }
    continue;
      }
      help();
  }




  try {
      if(receiver) {
    sock=new DatagramSocket(port, addr);
    System.out.println("Socket=" + sock.getLocalAddress() + ':' + sock.getLocalPort());
    System.out.println("starting as receiver");
    receiverLoop(sock);
      }
      else {
    sock=new DatagramSocket();
    System.out.println("Socket=" + sock.getLocalAddress() + ':' + sock.getLocalPort());
    System.out.println("starting as sender");
    senderLoop(sock);
      }
  }
  catch(Exception e) {

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Examples of java.net.DatagramSocket

        this.host=host;
        this.port=port;




        if(server) {
            sock=new DatagramSocket(port, host);
            System.out.println("server started (ctrl-c to kill)");
            while(true) {
                byte[] buf=new byte[65000];
                DatagramPacket packet;
                packet=new DatagramPacket(buf, 0, buf.length);
                sock.receive(packet);
                packet=new DatagramPacket(RSP_BUF, 0, RSP_BUF.length, packet.getAddress(), packet.getPort());
                sock.send(packet); // send the response
            }
        }
        else {
            sock=new DatagramSocket();
            System.out.println("sending " + num + " requests");
            sendRequests();
        }
        sock.close();
    }

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