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9.4

Access sockets from different class

Asked by clivecrawdevil in Java Programming Language

Tags: class, different, games

Hi Experts

Can anyone help me with a sockets problem? I have an application I am adding sockets to in order to access it with telnet.

I am able to get the sockets working and connect to the server but I cannot access the output stream from any other class in order to print to the telnet session i.e.

public class Game {

            ServerSocket serverSocket = null;

            // Make the server run on the net at port 4444
            try {
                  serverSocket = new ServerSocket(4444);
            }
            catch (IOException e) {
                  System.out.println("Could not listen on port: 4444.");
                  System.exit(1);
            }

            Socket clientSocket = null;
            PrintWriter out = null;
            BufferedReader ir = null;
            
            // wait until a client connects to the server
            try {
            // accept client connection -- store clients connection in
            // clientSocket
                  clientSocket = serverSocket.accept();
            
            

            // out is used to output strings to the client
                  out = new PrintWriter(clientSocket.getOutputStream(), true);
 
            // in is used to read input from the client
             ir = new BufferedReader(
new InputStreamReader(clientSocket.getInputStream()));

            } catch (Exception e) {
                  System.out.println("Accept failed.");
                  System.exit(1);
            }



public class Commands {

      public void look(){
            out.handle().print(Game.currentRoom.roomDetail);
            out.print("is/are in the room ");
            for (Enumeration e = Game.currentRoom.getEntity().elements(); e.hasMoreElements();)
            {
                  Entities theEntity = (Entities) e.nextElement();
                  //Print Objects
                  
                  Game.out.print(theEntity + " ");
                  
                  }
            Game.out.println();
            Game.out.print("The room contains ");
            for (Enumeration e = Game.currentRoom.getObjects().elements(); e.hasMoreElements();)
            {
                  Objects anObject = (Objects) e.nextElement();
                  //Print Objects
                  
                  Game.out.print(anObject + " ");
                  
                  }
            System.out.println();
            System.out.print("you can go ");
            for (Enumeration e = Game.currentRoom.getDirection().elements(); e.hasMoreElements();)
            {
                  Direction anExit = (Direction) e.nextElement();
                  //Print directions
                  
                  System.out.print(anExit + " ");
                  
                  }
            System.out.println();
            }

I cannot find a way to access the PrintWriter out from the Commands class do I need to make a server class? Do I need to make a method to return the PrintWriter? Can I make any of these static? Tried all sorts of variations cannot find much in the way of examples.

Any help would be much appreciated.

Thanks

Clive
[+][-]03/15/07 02:17 PM, ID: 18730637Expert Comment

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[+][-]03/15/07 04:00 PM, ID: 18731185Author Comment

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[+][-]03/15/07 04:08 PM, ID: 18731225Accepted Solution

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About this solution

Zone: Java Programming Language
Tags: class, different, games
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Solution Provided By: objects
Participating Experts: 2
Solution Grade: A
 
[+][-]03/16/07 05:00 PM, ID: 18738623Expert Comment

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[+][-]03/19/07 06:34 AM, ID: 18747912Author Comment

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