如下所示，interrupted（）会改变线程的中断状态(清除)，而isInterrupted（）不影响线程的中断状态
1 /** * Tests whether the current thread has been interrupted. The
* <i>interrupted status</i> of the thread is cleared by this method. In
* other words, if this method were to be called twice in succession, the
* second call would return false (unless the current thread were
* interrupted again, after the first call had cleared its interrupted
* status and before the second call had examined it).
* * <p>A thread interruption ignored because a thread was not alive
* at the time of the interrupt will be reflected by this method
* returning false.
* * @return <code>true</code> if the current thread has been interrupted;
* <code>false</code> otherwise. * @see #isInterrupted() * @revised 6.0 */
public static boolean interrupted() { 2 return currentThread().isInterrupted(true); 3 } 4 5 6 /** * Tests whether this thread has been interrupted. The <i>interrupted
* status</i> of the thread is unaffected by this method.
* * <p>A thread interruption ignored because a thread was not alive
* at the time of the interrupt will be reflected by this method
* returning false. * * @return <code>true</code> if this thread has been interrupted;
* <code>false</code> otherwise. * @see #interrupted() * @revised 6.0 */
public boolean isInterrupted()
{ return isInterrupted(false);} 7 8 9 10 /** * Tests if some Thread has been interrupted. The interrupted state
* is reset or not based on the value of ClearInterrupted that is * passed. */
private native boolean isInterrupted(boolean ClearInterrupted);