</div>
  </div>
</td></tr></table>


<div class="jd-descr">


<h2>Class Overview</h2>
<p itemprop="articleBody">A channel is a conduit to I/O services covering such items as files, sockets,
 hardware devices, I/O ports or some software component.
 <p>
 Channels are open upon creation, and can be closed explicitly. Once a channel
 is closed it cannot be re-opened, and any attempts to perform I/O operations
 on the closed channel result in a <code>ClosedChannelException</code>.
 <p>
 Particular implementation