Using a socket array (Java)

I'm brand new to Java and have been working with it for, at the max, 3 hours. I've got a C background.
Anyway, I'm using it for a multi-threaded socket server and need to be able to access all the connected clients' sockets. I figured this would be achieved through creating a socket array and then assigning each socket object, as it's created, to whatever spot in the array is open. This part goes fine. However, when I try to access the methods of the socket, I get thrown a screenful of errors:
java.net.SocketException: socket closed
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(Unknown Source)
        at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
        at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
        at sun.nio.cs.StreamDecoder.read(Unknown Source)
        at java.io.InputStreamReader.read(Unknown Source)
        at java.io.BufferedReader.fill(Unknown Source)
        at java.io.BufferedReader.readLine(Unknown Source)
        at java.io.BufferedReader.readLine(Unknown Source)
        at SocketThreader.run(SocketThreader.java:41)

I'm trying to use the objects with this:
for (int i = 0; i < MultiSocket.maxClients; i++)
{
    if (MultiSocket.clientsockets[i] != null && i != clientid)
    {
        PrintWriter tmpout = new PrintWriter(MultiSocket.clientsockets[i].getOutputStream(), true);
        tmpout.println("Remote msg: " + outputLine);
        tmpout.close();
    }
}

Any help on this would be appreciated, as I can't find any documentation on socket arrays.

Oops, here's the section that I assign the socket in.
for (int i = 0; i < MultiSocket.maxClients; i++)
{
    if (MultiSocket.clientsockets[i] == null)
    {
        MultiSocket.clientsockets[i] = socket;
        MultiSocket.clientparams[i][0] = "" + i;
        clientid = i;
        System.out.println("Set up clientsocket " + i);
        break;
    }
}

Nevermind. Figured it out.

I don't know java, but... java.net.SocketException: socket closed ?
I think that means that... the socket is closed.


.... did you open the sockets?

Yes, what was happening is I was trying to close the PrintWriter, but it closed the connection instead (tmpout.close()). Now it's working on all but the first client that connects but it's better than nothing.

And, fixed that by removing && i != clientid

If you are using a multi-threaded server why not let each thread handle just one socket.

Each thread is handling one socket. However, for my uses I need to be able to broadcast a message to all the sockets as well as store information for each socket that can be accessed by all of them.

I hope your daughter gets raped by negroes on cocaine.

Neat.
I've got another question.
How the hell can I check to see if a string is null?

public String isTheStringNull(String theString) {
if(theString == null) {
return "Yes, the string '"+theString+"' is null.";
}
else
{
return "No, the string is not null!";
}
}

Why not just check if the string is empty? Is it what you're really after, or do you really want to check against null?

String blah;
// ...
if (blah.equals("")) {
  System.out.println("blah is empty");
} else {
  System.out.println("blah is not empty");
}

>>10
memory is never empty.

>>12
.equals
Java is nasty and stupid.

JAVA IS AWESOME AND WIN

>>15
Lol no

YOU ARE NOW THINKING MANUALLY

The 2 html is   the active frame   or something because   of the lack   of those fucking   Camls and their   Black Egyptian aeronauts!

dicks