Question : Java Applet Server sending

All of these tutorials use an APPLICATION and not an applet as examples and whatnot... I want to know how to check if a user types something in a textarea... pressed enter... that the information would be sent to server and back to all clients.
no - let's start small sending a string of data from client to server and back to all clients... o_O
i know i can't use readLine() because that is for user input and I am using an applet... sooo.. yeah

this is my client applet
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import java.io.*;
import java.applet.Applet;
import java.net.*;
import javax.swing.*;
import java.awt.*;
import java.util.*;

public class ClientApplet extends Applet implements Runnable {

      public static TextArea chat;
      static PrintStream os = null;
      static Socket clientSocket = null;

      public void init() {
            chat = new TextArea(10,40);
            add(chat);
               chat.append("Hey!");
      }

      public void start() {
           new Thread(this).start();
      }

      public void run() {
          // communicate with server here


Socket s = null;

try {
s = new Socket(getParameter("host"), Integer.valueOf(getParameter("port")));
//s = new Socket("localhost", 4444);
InputStream in = s.getInputStream();
os = new PrintStream(clientSocket.getOutputStream());
int buf = -1;
while ((buf = in.read()) != '.') {

chat.append("\n" + buf);

}
chat.append("\nIn read: " + in.read() + "\nServer sent: " + in);

}catch(Exception e) {
e.printStackTrace();
}
finally {
try {
	s.close();
	} catch(IOException e)
	{ }
}

}
}


here is server
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import java.io.*;
import java.net.*;
import java.util.*;

public class Server{

    static  Socket clientSocket = null;
    static  ServerSocket serverSocket = null;

	static  clientThread t[] = new clientThread[10];


    public static void main(String args[]) {

	// The default port



	int port_number=2222;

	if (args.length < 1)
	    {
		System.out.println("Starting game server...\nPort number: "+port_number);
	    } else {
		port_number=Integer.valueOf(args[0]).intValue();
	    }

        try {
	    serverSocket = new ServerSocket(port_number);
	    System.out.println("\n**********************\n*** SERVER STARTED ***\n**********************\n");
        }
        catch (IOException e)
	    {System.out.println(e);}

	while(true){
	    try {
		clientSocket = serverSocket.accept();
		System.out.println("*** SOMEONE CONNECTED ***\n");
		for(int i=0; i<=9; i++){
		    if(t[i]==null)
			{
			    (t[i] = new clientThread(clientSocket,t)).start();
			    break;
			}
		}
	    }
	    catch (IOException e) {
		System.out.println(e);}
	}
    }
}

class clientThread extends Thread{

    BufferedReader is = null;
    PrintStream os = null;
    Socket clientSocket = null;
    clientThread t[];
    Random roll = new Random();

    public clientThread(Socket clientSocket, clientThread[] t){
	this.clientSocket=clientSocket;
        this.t=t;
    }

    public void run()
    {
		System.out.println("Check 1");
	String line;
        String name;
        int py;
	try{
		System.out.println("Check 2");
	    is = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
	    System.out.println("Check 3");
	    os = new PrintStream(clientSocket.getOutputStream());
	    System.out.println("Check 4");
	    int px = roll.nextInt(200);
	    //os.println("Enter your name.");
	    System.out.println("Check 5");
	    name = "Guest #" + roll.nextInt(6);
	    System.out.println("Check 6\n");
	    System.out.println(name+" has entered the game. Their attack: " + px);
	    System.out.println("Check 7");
	    for(int i=0; i<=9; i++)
		if (t[i]!=null && t[i]!=this)
		    t[i].os.println("*** A new user "+name+" entered the chat room !!! ***" );
		    System.out.println("Check 8");
	    while (true) {
			System.out.println("Check 9");
		line = is.readLine();
                if(line.startsWith("/quit")) break;
		for(int i=0; i<=9; i++)
		    if (t[i]!=null)  t[i].os.println("<"+name+":"+px+"> "+line); // someone said something
	    }
	    for(int i=0; i<=9; i++)
		if (t[i]!=null && t[i]!=this) {
		System.out.println("\n" + name + " has left!\n");
		    t[i].os.println("*** The user "+name+" is leaving the chat room !!! ***" );
		}

	    os.println("*** Bye "+name+" ***");

	    for(int i=0; i<=9; i++) {
		if (t[i]==this) t[i]=null;
		System.out.println("\nSomeone has left!\n");
	}

	    is.close();
	    os.close();
	    clientSocket.close();
	}
	catch(IOException e){};
    }
}

Answer : Java Applet Server sending

assuming the jar is in the classpath of the application then you can get a URL of a resource inside the jar using the getResource() method. You don't actually need to know where the jar is located.

http://helpdesk.objects.com.au/java/how-to-get-url-to-a-resource-in-same-directory-as-a-class
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