OAF two dates difference in Years with 2 decimal points

import oracle.jbo.domain.Date;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import oracle.apps.fnd.common.VersionInfo;
import oracle.apps.fnd.framework.OAApplicationModule;
import oracle.apps.fnd.framework.OAException;
import oracle.apps.fnd.framework.OAViewObject;
import oracle.apps.fnd.framework.webui.OAControllerImpl;
import oracle.apps.fnd.framework.webui.OAPageContext;
import oracle.apps.fnd.framework.webui.OAWebBeanConstants;
import oracle.apps.fnd.framework.webui.beans.OAWebBean;
import oracle.apps.fnd.framework.webui.beans.message.OAMessageAttachmentLinkBean;
import oracle.apps.fnd.framework.webui.beans.message.OAMessageStyledTextBean;
import oracle.apps.fnd.framework.webui.beans.message.OAMessageTextInputBean; 

  if("endDateUpdtd".equals(pageContext.getParameter(EVENT_PARAM)))
         {
             System.out.println("endDateUpdtd fireAction Event Called"); 
           String sdate=pageContext.getParameter("entryStartDt");
           String edate=pageContext.getParameter("entryEndDt");
            
             System.out.println("String sdate :-" + sdate);
             System.out.println("String edate :-" + edate);
           DateFormat formatter;
             DateFormat formatter2;
             java.util.Date date; //commented on 12 May20
            java.util.Date date2;//commented on 12 May20

                    if (sdate != null && edate != null) {
                        try {
                            formatter = new SimpleDateFormat("dd-MMM-yyyy");
                            date = formatter.parse(sdate);//commented on 12 May20
                              date2 = formatter.parse(edate);//commented on 12 May20

                               DateFormat dateFormat = new SimpleDateFormat("dd-MMM-yyyy");
                              java.sql.Date sqlStartDateSd = new java.sql.Date (dateFormat.parse(sdate).getTime());
                              java.sql.Date sqlEndDateEd = new java.sql.Date (dateFormat.parse(edate).getTime());
                               Date jboDomainStartDate = new Date(sqlStartDateSd);
                               Date jboDomainEndDate = new Date(sqlEndDateEd);
                              
                              if(date.after(date2)) {
                                  System.out.println("Start Date is Greater than End Date");
                                  throw new OAException("Start Date is Greater than End Date",OAException.ERROR);
                              }
                      
                              if (date2.after(date))
                              {
                                  System.out.println("End Date is Greater than Start Date");
                                 

                                  long  noOfDays =((date2.getTime()-date.getTime() )/(1000*60*60*24));
                                  long  noOfyrs =(noOfDays/(365));

                                java.sql.Date sqlStartDate = new java.sql.Date(date.getTime());
                                java.sql.Date sqlEndDate = new java.sql.Date(date2.getTime());
                                  long noOfyrsJsql =((sqlEndDate.getTime()-sqlStartDate.getTime() )/(1000*60*60*24*365));
                                  System.out.println("String noOfyrsJsql :-" + noOfyrsJsql+ "");
                               String StrngnoOfDays=String.valueOf(noOfDays);
                                  String StrngnoOfyrs=String.valueOf(noOfyrs);

                             
                                   OAMessageTextInputBean DurationTextBean = (OAMessageTextInputBean)webBean.findChildRecursive("duration");

                                double dblDiffDays = ((jboDomainEndDate.getValue().getTime() - jboDomainStartDate.getValue().getTime()) / (1000 * 60 * 60 * 24));
                                  double  dblNoOfyrs =(dblDiffDays/(365));
                                  DecimalFormat df = new DecimalFormat("#.##");
                                  double  dblNoOfyrsFnl = Double.parseDouble(dblNoOfyrs+ ""); //df.format((double)dblNoOfyrs);
                                  String dblNoOfyrsFnlStg =df.format(dblNoOfyrsFnl);

                                  DurationTextBean.setValue(pageContext, dblNoOfyrsFnlStg+" Year(s)");
                           
                              }
                                                
                           java.sql.Date sqlDate = new java.sql.Date(date.getTime());
                           oracle.jbo.domain.Date jboDate =
                               new oracle.jbo.domain.Date(sqlDate);
                               System.out.println("jboDate"+jboDate+"sqlDate"+sqlDate);
                                              } catch (ParseException e) {
                            e.printStackTrace();
                       }
                    }
         }