ncoding()</code></a>. If the response's character encoding has not
 been specified as described in <code>getCharacterEncoding</code> (i.e., the method just returns the default value
 <code>ISO-8859-1</code>), <code>getWriter</code> updates it to <code>ISO-8859-1</code>.
 <p>
 Calling flush() on the <code>PrintWriter</code> commits the response.
 <p>
 Either this method or <a href="#getOutputStream()"><code>getOutputStream()</code></a> may be called to write the body, not both, except when <a href="#reset()"