Java inputstream never leaves

I'm coding a server app in Java.

I wrote data receive part in server like this:
String s;
in = new DataInputStream(client.getInputStream());

And below this code after some other processings...
  while ((i = != -1) {
                    s = s + (char) i;
System.out.println("OK! We received data part");

This code never prints out  "OK! We received data part" till I close connection from client!

So how can I read data from inputStream?

Thanks from now!
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Ajay-SinghConnect With a Mentor Commented:
it happens when
a. client closes the connection
b. you close the OutputStream of client
read is blocking call, will wait untill it receives data from client
You should define boundry of the request and read till that point.
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CSecurityAuthor Commented:
b. you close the OutputStream of client
How? My client is coded in VB6.

And is there another call or reading method which can leave in inputstream?
CSecurityAuthor Commented:
P.S please tell me exit while code.... (in while how can I exit) in VB I write-> exit for. exit do or...

Not sure how you can close output fd in VB. If you are expecting data from the client in terms of line, you can use readLine() function
CSecurityAuthor Commented:
how to exit while() loop? I should use return?
marchentConnect With a Mentor Commented:
suppose u wanna break when i = -1, then use this code

while( ...condition..)
   if(i == -1) break;

it will get u out from while loop

Assuming that from VB program, you are trying to send the commands line by line,
i would suggest to use the following:

String command = in.readLine();
// Work on the command

Do NOT read char by char
girionisConnect With a Mentor Commented:
> how to exit while() loop? I should use return?

You can use return if you want ot return a value, you can even use it to exit the loop (and also the whole method). If you only want to exit the loop follow marchent's suggestion a use break;
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