Java program question

[Rusky]

Within 1 java program I have 2 classes - MultiThread and Client
When I made the MultiThread class I checked off public static void main(String[] args)

The command "ask user1 ip1 user2 ip2" gets sent to the MultiThread class
When the user types accept which is defined in the Client class I need the Client part to return the word "accept" along with user1 and user2. The MultiThread class knows about them but Client does not.

Pretty much I need to somehow make a variable in Client that I can assign to user1 and user 2 from MultiThread

Does anyone have any ideas?
If you need more code then I will post it.

MultiThread

else if (command.equals("ask")) {
        		System.out.println("ask command received");
        		
        		String name1 = st.nextToken();
        		String ip1 = st.nextToken();
        		String name2 = st.nextToken();
        		String ip2 = st.nextToken();

        		System.out.println("name1=" + name1 + " " + "ip1=" + ip1 + " " + "name2=" + name2 + " " + "ip2=" + ip2);
        		System.out.println("Do you want to add " + name1 + "(accept/reject)");
        	}

Client

else if ("accept".equals(input)) {
                System.out.println("accept command received\n");

                Socket Socket = null;
                PrintWriter out = null;
                BufferedReader in = null;

                try {
                    Socket = new Socket(server, port);
                    out = new PrintWriter(Socket.getOutputStream(), true);
                    in = new BufferedReader(new InputStreamReader(Socket.getInputStream()));
                } catch (UnknownHostException e) {
                    System.err.println("Don't know about host: " + server);
                    System.exit(1);
                } catch (IOException e) {
                    System.err.println("Couldn't get I/O for the connection to: " + server);
                    System.exit(1);
                }
                
                out.println("accept");
                
                out.close();
                in.close();
                Socket.close();
            }

 

[enyceexdanny]

What do you mean you "checked off" public static.....

 

[LuminaryJanitor]

What do you mean you "checked off" public static.....

My guess is that the OP is using some IDE with a checkbox in the class creation window to add a main() template.

@ the OP:
If you really want to assign these "user" strings to a variable in Client, you can do it by declaring some "String s;" at the top of Client, and setting it from MultiThread with "c.s = user1;", where c is the name of your Client object. Though usually when you want to pass information like this, you'd do it through function arguments / returns.

I think the rest of the code would help a lot... It's not really clear from here what's going on (in particular, how these classes communicate with each other). There are also a couple of things which look a bit questionable, though without any context, it's hard to tell whether there are good reasons behind them.

 

[generelz]

I believe the OP has an assignment to write a multi-threaded system to simply learn about message passing and/or shared memory between threads. There are plenty of good ways to do this in Java.

However, this seems like a homework assignment, so unless the OP can share more information about exactly where he's running into problems, I'm not going to waste my time trying to read his mind.