()</code> method uses two <em>accessor methods</em> to
obtain information about <code>source</code>: <code>charAt()</code> and <code>length()</code>.
Both String and StringBuffer provide a number of other accessor methods,
including some for inspecting substrings and getting the positions of a specific character.
</blockquote>

<h4><a href=modifying.html>Modifying StringBuffers</a>
</h4>
<blockquote>
The <code>reverseIt()</code> method uses StringBuffer's <code>append()</code>
method to add characters to <c