Help needed setting specific date in GregorianCalendar object?

Question

Hi All!
I have set SimpleTimeZone object in GregorianCalendar object. How can I set a new date to the GregorianCalendar object, such that i can find DAY_OF_YEAR specific to this date's day?
URGENT replies will be appreciated!

Answer 1

Thanks for ur reply!
but the problem is that i have to create a method:
public int getDayOfYear(int day, int month, int year)
return day_of_the year;
This method should accept user specified day, month and year and passes to GregorianCalendar/Calendar object. I need want to get DAY_OF_YEAR value from Calendar.DAY_OF_YEAR which it will provide, but the change is not affecting!
ACTUAL CODE
===========
public static double getDayofYear(int hr, int min, int sec)
String[] ids = TimeZone.getAvailableIDs(5 * 60 * 60 * 1000);
SimpleTimeZone pdt = new SimpleTimeZone(5 * 60 * 60 * 1000, ids[0]);      
for (int i=0; i<ids.length; i++)
System.out.println (ids);
//setting DLS start and end rule
pdt.setStartRule(Calendar.MAY, 1, Calendar.SUNDAY, 00 * 60 * 60 * 1000);
pdt.setEndRule(Calendar.OCTOBER, -1, Calendar.SUNDAY, 00 * 60 * 60 * 1000);
Calendar calendar = new GregorianCalendar(pdt);
//Date trialTime = new Date();//SET DATE
//calendar.setTime(trialTime);
calendar.set(Calendar.HOUR,hr);
calendar.set(Calendar.MINUTE,min);
calendar.set(Calendar.SECOND,sec);
return ((double) calendar.get(Calendar.DAY_OF_YEAR));          
This method is giving true output for today [2nd Dec. 2002 -> 336], but only when it accepts current time, not date. Also giving same output on changing arguments!
Hoping ur help!