Thread类的interrupted方法和isInterrupted方法的区别

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);