castor: xml -> Java

From: ZJT (zjt1114_at_yahoo.com)
Date: 02/09/04 

Date: 9 Feb 2004 00:57:47 -0800

How do I write the corresponding java file if I have an xml file like
this in castor:

<expense-list>
  <expense>
    <subject>Lunch</subject>
    <amount>
      <currency>S$</currency>
      <quantity>2.5</quantity>
    </amount>
    <date>
      <year>2004</year>
      <month>02</month>
      <day>06</day>
    </date>
  </expense>
  <expense>
    <subject>Lunch</subject>
    <amount>
      <currency>S$</currency>
      <quantity>3.5</quantity>
    </amount>
    <date>
      <year>2004</year>
      <month>02</month>
      <day>07</day>
    </date>
  </expense>
  <expense>
    <subject>Dinner</subject>
    <amount>
      <currency>S$</currency>
      <quantity>5</quantity>
    </amount>
    <date>
      <year>2004</year>
      <month>02</month>
      <day>07</day>
    </date>
  </expense>
</expense-list>

Thanks a lot!