Java异常之InterruptedException

java.lang.InterruptedException

   Thrown when a thread is waiting, sleeping, or otherwise occupied,and the thread is interrupted,
 either before or during the activity.
   Occasionally a method may wish to test whether the current thread has been interrupted, and if so,
 to immediately throw this  exception.  
   The following code can be used to achieve this effect:
  
   if (Thread.interrupted())  // Clears interrupted status!
      throw new InterruptedException();