/*****************************
Para ejecutar:
1.- Instale Java Standard Edition development Kit (JDK)
si no lo tiene http://java.sun.com
2.- Configure adecuadamente la
variable de ambiente PATH .
3.- Edite este archivo para reflejar la máquina
   y puerto del servidor.
4.- Compile el programa con:
% javac UDPClient.java
5.- Ejecute el programa con:
% java UDPClient
*******************************/
import java.io.*; 
import java.net.*; 
  
class UDPClient { 
  public static void main(String args[]) throws Exception 
    {
      BufferedReader inFromUser = 
        new BufferedReader(new InputStreamReader(System.in));
      DatagramSocket clientSocket = new DatagramSocket();
      InetAddress IPAddress = InetAddress.getByName("pcagv.elo.utfsm.cl");
      byte[] sendData; 
      byte[] receiveData = new byte[1024];
      String sentence = inFromUser.readLine(); 
      sendData = sentence.getBytes();         
      DatagramPacket sendPacket = 
        new DatagramPacket(sendData, sendData.length, IPAddress, 9876);
      clientSocket.send(sendPacket);
      DatagramPacket receivePacket = 
        new DatagramPacket(receiveData, receiveData.length);
      clientSocket.receive(receivePacket);
      String modifiedSentence = 
        new String(receivePacket.getData());
      System.out.println("FROM SERVER:" + modifiedSentence); 
      clientSocket.close(); 
    } 
}