calling Object.notify() before Object.wait()

Question

If there is no thread which is waiting, using Object.wait() , any calls to Object.notify() or Object.notifyAll() have no effect. I hav

Answer 1

Use a flag to indicating a notification. Read the flag before entering wait and act accordingly.

boolean stopped = false;

public void run(){
   synchronized(object){
      while(!stopped)
        object.wait();
   }

}

public void stop(){
  synchronized(object){
    stopped=true;
    object.notify();
  }

}