How to use FieldPosition argument in java MessageFormat.format method?
<p>How is the FieldPosition argument used in the <code>MessageFormat.format</code> method in java?  In all the examples I have seen online, there have been no uses of the FieldPosition argument.  Is this argument used for anything?  I am looking at the spec here: <a href="http://docs.oracle.com/javase/1.5.0/docs/api/java/text/MessageFormat.html" rel="nofollow">http://docs.oracle.com/javase/1.5.0/docs/api/java/text/MessageFormat.html</a>.  Method signature is copied below.</p>

<pre><code>public final StringBuffer format(Object[] arguments,
                                 StringBuffer result,
                                 FieldPosition pos)
</code></pre>
