p;numBytes)
                   throws <a href="http://download.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Flushes the in-memory bufer to the given output, copying at most
 <code>numBytes</code>.
 <p>
 <b>NOTE:</b> this method does not refill the buffer, however it does
 advance the buffer position.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of bytes actually flushed from the