java - Iterate on all weeks between start, finish date -

i have 2 date objects, start , finish. want iterate them on weekly basis, i.e. if there 4 weeks in between (calendar weeks, not 7 days after each other), want 4 iterations , in each iteration want actual start , end dates.

i'm hacking iterable purpose, i'm thinking if can achieved example joda time or smart custom method. in advance!

edit: must repeat need weeks in calendar, not 7 days after each other. if start date on random day in week (for example friday), first iteration should contain [friday,sunday] not [friday,friday+7 days]. solution posted answer.

to calculate using calendar , week_of_year:

 int startweek;  int finishweek;  int diff;  simpledateformat sdf;  calendar cal;  calendar startcountingcal;  date startdate;  date finishdate;  string startdates = "01/01/2013";  string finishdates = "01/05/2013";   sdf = new simpledateformat("dd/mm/yyyy");   startdate = sdf.parse(startdates);  finishdate = sdf.parse(finishdates);   cal = calendar.getinstance();   cal.settime(startdate);  startweek = cal.get(calendar.week_of_year);       cal.settime(finishdate);  finishweek = cal.get(calendar.week_of_year);   diff = finishweek - startweek;   startcountingcal = calendar.getinstance();  startcountingcal.settime(startdate);      (int = 0; < diff; i++) {       if (i==0) {         system.out.println("week " + + " start: " + sdf.format(startcountingcal.gettime()));         startcountingcal.add(calendar.date, 7);         system.out.println("week " + + " start: " + sdf.format(startcountingcal.gettime()));       } else {         system.out.println("week " + + " start: " + sdf.format(startcountingcal.gettime()));         startcountingcal.add(calendar.date, 7);         system.out.println("week " + + " start: " + sdf.format(startcountingcal.gettime()));       }  } 

output:

week 0 start: 01/01/2013 week 0 start: 08/01/2013 week 1 start: 08/01/2013 week 1 start: 15/01/2013 week 2 start: 15/01/2013 week 2 start: 22/01/2013 week 3 start: 22/01/2013 week 3 start: 29/01/2013 .... etc. 

hope helps!