parsing a xml file against the schema

I am having problem parsing my xml against the schema, could you please
help me??????????????

The problem is that If I change the the data types in from int (specified
in .xsd) to a string like (abc)in the .xml file,  I don't get an
exception from the parser.
I am attaching the .xml , .xsd file and .xsl file here I will add my java
code here too.


Thaks! Zahra

(See attached file: hphood_payroll.xml)(See attached file: payroll.xsl)(See
attached file: payroll.txt)(See attached file: payroll.xsd)

private static void parseXml()
{

     try {


          String filename = "C:\\FirsTeam\\Internet\\xml\\hphood_payroll.xml";

          String outFileName = "C:\\FirsTeam\\Internet\\xml\\hphood_payroll.new.xml";
          InputStream in = new FileInputStream(filename);
          Writer writer = new FileWriter(outFileName);
          org.apache.xerces.parsers.DOMParser parser = new org.apache.xerces.parsers.DOMParser();
          parser.parse(new org.xml.sax.InputSource(in));
          Document xmlDoc = parser.getDocument();

          XmlUtil.printXmlNode(xmlDoc, System.out);
     }
     //catch(Exception e) {
     //   e.printStackTrace(System.out);
     //}
      catch(IOException e) {
          System.out.println("Error in reading File: " + e.getMessage());
     }
     catch(SAXException e) {
          System.out.println("Error in parsing: " + e.getMessage());
     }
     catch(DOMException e) {
          System.out.println("Error in parsing: " + e.getMessage());
     }
}


here is the java code