Makes a socket connection to the atomic clock in Boulder, Colorado, and prints the time that the server sends. : Socket « Network Protocol « Java






  1. Java
  2. Network Protocol
  3. Socket

Makes a socket connection to the atomic clock in Boulder, Colorado, and prints the time that the server sends.

 
/*
   This program is a part of the companion code for Core Java 8th ed.
   (http://horstmann.com/corejava)

   This program is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.util.Scanner;

/**
 * This program makes a socket connection to the atomic clock in Boulder, Colorado, and prints the
 * time that the server sends.
 * @version 1.20 2004-08-03
 * @author Cay Horstmann
 */
public class SocketTest
{
   public static void main(String[] args)
   {
      try
      {
         Socket s = new Socket("time-A.timefreq.bldrdoc.gov", 13);
         try
         {
            InputStream inStream = s.getInputStream();
            Scanner in = new Scanner(inStream);

            while (in.hasNextLine())
            {
               String line = in.nextLine();
               System.out.println(line);
            }
         }
         finally
         {
            s.close();
         }
      }
      catch (IOException e)
      {
         e.printStackTrace();
      }
   }
}








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