/*
 * Copyright (c) 1994 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Permission to use, copy, modify, and distribute this software
 * and its documentation for NON-COMMERCIAL purposes and without
 * fee is hereby granted provided that this copyright notice
 * appears in all copies. Please refer to the file "copyright.html"
 * for further important copyright and licensing information.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
 * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
 * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
 * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
 */
import java.io.*;
import java.net.*;

public class KnockKnockClient {
    public static void main(String[] args) {
	try {
	    Socket kkSocket = new Socket("campione", 4444);
	    PrintStream os = new PrintStream(kkSocket.getOutputStream());
	    DataInputStream is = new DataInputStream(kkSocket.getInputStream());
	    StringBuffer buf = new StringBuffer(50);

	    int c;
	    String fromServer;

	    while ((fromServer = is.readLine()) != null) {
		System.out.println("Server: " + fromServer);
		if (fromServer.equals("Bye"))
			break;
	        while ((c = System.in.read()) != '\n') {
	            buf.append((char)c);
	        }
		System.out.println("Client: " + buf);
	        os.println(buf.toString());
	        os.flush();
		buf.setLength(0);
	    }

	    os.close();
	    is.close();
	    kkSocket.close();
	} catch (UnknownHostException e) {
	    System.err.println("Trying to connect to unknown host: " + e);
	} catch (Exception e) {
	    System.err.println("Exception:  " + e);
	}
    }
}