How to calculate number of sundays and saturdays between two Dates

Question

friends i want to calculate how many Sundays come in two Dates
i have tried following code which is hard coded i have to impliment method which can give me number of Sundays between two Dates
please help me
import java.util.Date;
     import java.text.DateFormat;
     import java.text.SimpleDateFormat;
     import java.util.Calendar ;
     import java.util.GregorianCalendar;
public class DateDiffCalculator     {
     private static final SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MMM-dd");
public DateDiffCalculator()     {
     public static Date getDate (String date) throws Exception {
//log.debug(" "+date);
          return SDF.parse(date);
public static Date getDate (Date date) throws Exception {
// log.debug("date is "+date);
          return getDate(SDF.format(date));
public static long getDiffInDays(Date d1,Date d2)     {
     boolean isdiffGreaterThanYear=false;
     long diffInMilliSeconds=d1.getTime()-d2.getTime();
     return diffInMilliSeconds/(1000*60*60*24);
public static int getYear(String date)     {
          //String[] day=     {Sun,Mon,Tue,Wed,Thu,Fri,Sat};
          Integer     year=new     Integer(date.substring(0,4));
     return year.intValue();
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=1;
          if(m.equalsIgnoreCase("Feb"))     {
          month=2;
          if(m.equalsIgnoreCase("Mar"))     {
          month=3;
          if(m.equalsIgnoreCase("Apr"))     {
          month=4;
          if(m.equalsIgnoreCase("May"))     {
          month=5;
          if(m.equalsIgnoreCase("Jun"))     {
          month=6;
          if(m.equalsIgnoreCase("Jul"))     {
          month=7;
          if(m.equalsIgnoreCase("Aug"))     {
          month=8;
          if(m.equalsIgnoreCase("Sep"))     {
          month=9;
          if(m.equalsIgnoreCase("Oct"))     {
          month=10;
          if(m.equalsIgnoreCase("Nov"))     {
          month=11;
          if(m.equalsIgnoreCase("Dec"))     {
          month=12;
          return month;
     public static int getDay(String date)     {
          Integer     day=new     Integer(date.substring(9,11));
     return day.intValue();
public static int getNumberofSundays(String d1,String d2) throws Exception     {
          //d1 is leave start date d2 is leave end date
          // get object in Date form
               Date date1=getDate(d1);
               Date date2=getDate(d2);
          // now get calender objects from it
          GregorianCalendar c1= new GregorianCalendar(getYear(d1),getMonth(d1),getDay(d1));
          GregorianCalendar c2= new GregorianCalendar(getYear(d2),getMonth(d2),getDay(d2));
          // get period
          long leavePeriod = getDiffInDays(date1,date2);
     return 12; // it should return number of sundays but we type 12 to perform compilation
public static void main(String[] arg)throws Exception     {
System.out.println(" "+getNumberofSundays("2005-Oct-07","2006-Mar-01"));
}

Answer 1

thanks now i have modified the get Month Code
as follows
public static int getMonth(String date)     {
          //String date.substring(5,7);
          System.out.println(" "+date.substring(5,8));
          String     m= date.substring(5,8);
          int month=0;
          if(m.equalsIgnoreCase("Jan"))     {
          month=0;
          if(m.equalsIgnoreCase("Feb"))     {
          month=1;
          if(m.equalsIgnoreCase("Mar"))     {
          month=2;
          if(m.equalsIgnoreCase("Apr"))     {
          month=3;
          if(m.equalsIgnoreCase("May"))     {
          month=4;
          if(m.equalsIgnoreCase("Jun"))     {
          month=5;
          if(m.equalsIgnoreCase("Jul"))     {
          month=6;
          if(m.equalsIgnoreCase("Aug"))     {
          month=7;
          if(m.equalsIgnoreCase("Sep"))     {
          month=8;
          if(m.equalsIgnoreCase("Oct"))     {
          month=9;
          if(m.equalsIgnoreCase("Nov"))     {
          month=10;
          if(m.equalsIgnoreCase("Dec"))     {
          month=11;
          return month;
but question remains same how to calculate number of Sundays Between 2 Dates