gregorian-calendar

问题 I'm creating a DatePickerDialogFragment where the user will select date of birth. I am wanting to make sure I can handle dates which are non-gregorian. I have not been able to change which type of calendar to use on my device. Does Android give the user the capability to switch the calendar type? If so what are the steps? I have had no success in the settings so far. 回答1: Android does not seem to support any other calendars. In fact, the Calendar class only has one direct subclass:

问题 Good Day . I just wanna ask about adding days in a given date. I have a jtexfield (txtStart) and another jtexfield(txtExpiry). I need to display in txtExpiry the date after 102 days from the date in txtStart. I am using KEYRELEASED event. after i input in txtStart, the date with additional 102 days shall appear in txtExpiry. here's my code but it's still erroneous. private void txtStartKeyReleased(java.awt.event.KeyEvent evt) { // TODO add your handling code here: // set calendar to 1 Jan

问题 Good Day . I just wanna ask about adding days in a given date. I have a jtexfield (txtStart) and another jtexfield(txtExpiry). I need to display in txtExpiry the date after 102 days from the date in txtStart. I am using KEYRELEASED event. after i input in txtStart, the date with additional 102 days shall appear in txtExpiry. here's my code but it's still erroneous. private void txtStartKeyReleased(java.awt.event.KeyEvent evt) { // TODO add your handling code here: // set calendar to 1 Jan

问题 This question already has answers here : Converting ISO 8601-compliant String to java.util.Date (28 answers) Closed 3 years ago . I have a string date "2010-12-15T16:26:49.841-08:00" and I need to convert it to a GregorianCalendar in Java. How do you do this? Solution from Jesper's answer Code for the solution using joda time: DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ").withOffsetParsed(); DateTime date = formatter.parseDateTime("2010-12-15T16:26:49

问题 This question already has answers here : Converting ISO 8601-compliant String to java.util.Date (28 answers) Closed 3 years ago . I have a string date "2010-12-15T16:26:49.841-08:00" and I need to convert it to a GregorianCalendar in Java. How do you do this? Solution from Jesper's answer Code for the solution using joda time: DateTimeFormatter formatter = DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ").withOffsetParsed(); DateTime date = formatter.parseDateTime("2010-12-15T16:26:49

问题 I have a program that needs to start on 1/1/09 and when I start a new day, my program will show the next day. This is what I have so far: GregorianCalendar startDate = new GregorianCalendar(2009, Calendar.JANUARY, 1); SimpleDateFormat sdf = new SimpleDateFormat("d/M/yyyy"); public void setStart() { startDate.setLenient(false); System.out.println(sdf.format(startDate.getTime())); } public void today() { newDay = startDate.add(5, 1); System.out.println(newDay); //I want to add a day to the

问题 The code in question is below: public static string ChangePersianDate(DateTime dateTime) { System.Globalization.GregorianCalendar PC = new System.Globalization.GregorianCalendar(); PC.CalendarType = System.Globalization.GregorianCalendarTypes.USEnglish; return PC.GetYear(dateTime).ToString() + "/" + PC.GetMonth(dateTime).ToString() + "/" + PC.GetDayOfMonth(dateTime).ToString() + "" + PC.GetHour(dateTime).ToString() + ":" + PC.GetMinute(dateTime).ToString() + ":" + PC.GetSecond(dateTime)

问题 Trying to make a little Countdown program in Java. I am working on the finding the difference between the dates part of the app, and for some reason I am only getting the days. I want the days, hours, minutes, and seconds. I am not sure why my calculation is just being rounded to an even integer... 163 in this example, and not 163.xx? Here is my code: import java.util.Date; import java.util.Calendar; import java.util.GregorianCalendar; public class CalcData { Calendar cal1; Date today; public

问题 This question already has answers here : Strange behaviour with GregorianCalendar (8 answers) Closed last year . We are using the below code snippet to get number of days for the provided month and year. For 02 and 2011, It returns the no of days as 31 ( which is not the case). for 02 and 2016, it returns the no of days as 29. Any clues. package Processes.BSAInvoiceInquiry.ExternalCall.PaymentStatusInquiry; import java.util.Calendar; import java.util.GregorianCalendar; public class

问题 I'm trying to use Joda library since count periods with Java native methods is a pain in the neck and all my attempts give unprecise results I have seen this sample to int n = Days.daysBetween(start.toLocalDate(), end.toLocalDate()).getDays(); since all my classes manage GregorianCalendar, I need that method that counts the days support GregorianCalendar, something like public int countDays(GregorianCalendar start, GregorianCalendar end){ //convert to joda start and end ... return Days