String sDate="20001210";
Date dDate;
String sYear,sMon,sDay;
sYear=sDate.substring(0,4);
sMon=sDate.substring(4,6);
sDay=sDate.substring(6);
Integer iYear,iMon,iDay;
iYear=new Integer(sYear);
iMon=new Integer(sMon);
iDay=new Integer(sDay);
dDate=new Date(iYear.intValue()-1900,iMon.intValue()-1,iDay.intValue());