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Postsdbo
PO
 

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    <p>There could be multiple places where the exception could be thrown. Without a stack trace it is difficult to state so accurately, as to the cause of failure.</p> <p>But the root cause, is essentially due to the fact that you are closing the InputStream of the socket in your Receiver threads after reading a message, and closing the OutputStream of the socket in your Sender threads after sending a message. Closing either of these streams will automatically close the socket, so you if attempt to perform any further operation on it, a SocketException will be thrown.</p> <p>If you need to ensure that your server and client do not shutdown in such an abrupt manner, you'll have to keep reading the InputStream (until you get a special message to shutdown, for instance). At the same time, you'll also have to keep writing to the OutputStream. Two-way communication is definitely possible, and the posted code is capable of the same (if the socket remains open).</p> <p>If you have to handle multiple clients, you'll need multiple reader and writer threads on the server, each listening on an instance of a Socket returned from <code>ServerSocket.accept()</code>; in simpler words, you need a reader-writer pair listening on a distinct socket on the server for each client. At the moment, multiple clients can connect to the Server, as each incoming connection is provided its own client Socket object on the Server, that is provided to individual reader and writer threads. The main Server thread can continue to receive incoming connections and delegate the actual work to the reader-writer pairs.</p>
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    1. POhow to communicate between client and server in java
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    1. USVineet Reynolds
    1. USVineet Reynolds
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      1. VTUpMod
    1. COThanks......Did you mean,there is no need of "client = server.accept();" in while loop?.If so how to know a message is recived?
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      1. USKIRAN K J
    2. COMy bad. The while loop enables multiple clients to connect. I'll edit my answer.
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    3. COAre there need while loops in all run method?If so,how to get an event while getting a new message???
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