How can I calculate the difference between two dates
<blockquote>
  <p><strong>Possible Duplicate:</strong><br>
  <a href="http://stackoverflow.com/questions/1116123/how-do-i-calculate-someones-age-in-java">How do I calculate someone&#39;s age in Java?</a>  </p>
</blockquote>



<p>I have two dates eg 19/03/1950 and 18/04/2011. how can i calculate the difference between them to get the person's age? do I have to keep multiplying to get the hours or seconds etc?</p>
