java - How to stop BufferedReader readline()? -

im new java , im trying make client-server form. client , server can chat each other. client have 2 thread 2 mission: send , receive message. want when sendthread read keyboard string "bye", client stop 2 thread. problem thread receive still perform statement readline() of bufferedreader can't reach exit here code of mine:

        try {             br = new bufferedreader(new inputstreamreader(socket.getinputstream()));             while (!stop) {                 string temp = br.readline();                 if (temp.length() == 0) {                     thread.sleep(100);                 }                 else system.out.println(" receiving server: " + temp);             }         } catch (ioexception | interruptedexception e) {             e.printstacktrace();         } 

update: sorry because dont explain more clearly. client have 2 thread run independently. receivethread code in can alway wait message server. , sendthread alway read data keyboard. when type "bye", sendthread read string , stop client. problem receivethread performing readline() can't stop itself.

according javadoc null reference returned when there end of stream, this:

br = new bufferedreader(new inputstreamreader(socket.getinputstream())); string temp; while ((temp=br.readline())!=null) { //check null reference     if (temp.length() == 0)         thread.sleep(100);     else         system.out.println(" receiving server: " + temp); } 

it not helpfull see how interrupt bufferedreader's readline