import java.io.*; import java.net.*; public class KnockKnockClient { public static void main(String[] args) throws IOException { Socket kkSocket = null; PrintWriter out = null; BufferedReader in = null; try { kkSocket = new Socket("taranis", 4444); out = new PrintWriter(kkSocket.getOutputStream(), true); in = new BufferedReader(new InputStreamReader(kkSocket.getInputStream())); } catch (UnknownHostException e) { System.err.println("Don't know about host: taranis."); System.exit(1); } catch (IOException e) { System.err.println("Couldn't get I/O for the connection to: taranis."); System.exit(1); } BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in)); String fromServer; String fromUser; while ((fromServer = in.readLine()) != null) { System.out.println("Server: " + fromServer); if (fromServer.equals("Bye.")) break; fromUser = stdIn.readLine(); if (fromUser != null) { System.out.println("Client: " + fromUser); out.println(fromUser); } } out.close(); in.close(); stdIn.close(); kkSocket.close(); } }