gregorian-calendar

问题 What are the maximum and minimum values of a GregorianCalendar? Are they in a constant like Integer.MAX_VALUE, or maybe GregorianCalendar.get(BLAH)? In a nutshell, how can I create a GregorianCalendar instance with min/max value? 回答1: This should work: GregorianCalendar maxgc = new GregorianCalendar(); maxgc.setTime(new Date(Long.MAX_VALUE)); GregorianCalendar mingc = new GregorianCalendar(); mingc.setTime(new Date(Long.MIN_VALUE)); 回答2: I took joekutner's suggestion and ran it with:

问题 I want to convert from Gregorian to Hijri(Islamic) date and I need a java class for this converting. I want to give it an Gregorian date in format of "yyyy/mm/dd" as string and it give me the Hijri date in the same format. can anyone help me? 回答1: Firstly, separate out the conversion part from the formatting/parsing part. You can deal with those easily later - and there are lots of questions on Stack Overflow about that. Personally I'd use Joda Time, which typically makes life much simpler.

问题 My problem can be easily created by the scenario below: //create a gregorian calendar object that set the date and time as 4th June 2012 at 10:30PM Calendar calendar = new GregorianCalendar(2012, 6, 4, 22, 30); //when I print out these: System.out.println(calendar.get(Calendar.DAY_OF_WEEK)); System.out.println(calendar.get(Calendar.MINUTE)); System.out.println(calendar.get(Calendar.HOUR)); System.out.println(calendar.get(Calendar.DATE)); System.out.println(calendar.get(Calendar.MONTH));

问题 I'm trying to setup a RPG that will keep track of a virtual time. After some reading GregorianCalendar seems to be the best way to do this but I have some questions and hoping someone with experience could give me some insight. Here is what I'm trying to do. The game will start in the year 1675 and run for about 30 years. At that point the character will retire if they have survived that long. The character will be able to choose from actions I've preset for them through the coarse of the

问题 I have an App that store some objects that contain a String date on a file, this String for some operations need to be parsed as GregorianCalendar . Now I have found this issue: when the user change the device language after the creation of the file the App become unable to process the stored file correctly and crashes returning this error java.text.ParseException: Unparseable date: "27 Sep 2014 23:09:07" (at offset 3) 10-11 14:20:09.573 3745-3745/uk.myapp W/System.err﹕ at java.text

问题 //The error message I'm getting is saying "cannot find symbol- method second(double) but I feel as though I have identified everything already. (I'm clearly wrong). I think there is a problem with the formula as well but that is the code I was given for the formula. Any help would be greatly appreciated. import java.util.GregorianCalendar; import javax.swing.JComponent; import java.awt.geom.Ellipse2D; import java.awt.geom.Line2D; import java.awt.*;//import * Class public class ClockComponent

问题 i have some problem, i just getting null value from jDateChooser in jCalendar. This method is function to convert java.util.Date into XMlGregorianCalendar : DatatypeFactory df; public XMLGregorianCalendar function_ConvertAsXMLGregorianCalendar(Date date) { if (date == null) { System.out.println("Error on Function Convert Date into XML Gregorian Calendar"); return null; } else { GregorianCalendar gc = new GregorianCalendar(); gc.setTimeInMillis(date.getTime()); return df

问题 I have the following data in a text file which later I will Scanner in. 17-Mar-2006 1100 1280 16-Jan-2002 1120 1230 15-Jun-2003 1140 1900 I'm building this data as an "Stockmarket" object. The instance variable "date" is declared as GregorianCalendar. The constructor, String dt, should expect the form "dd-MMM-yyyy" in String. Same goes to the public String date(), it should return a string of the form"dd-MMM-yyyy". I done it in the following way, but outputs: The date is java.util

问题 Ok, I want to make my program print out the date: 1/1/2009 But this is what it prints out: Thu Jan 01 00:00:00 EST 2009 From this code GregorianCalendar startDate = new GregorianCalendar(2009, Calendar.JANUARY, 1); public void setStart() { startDate.setLenient(false); Date date = new Date(startDate.getTimeInMillis()); System.out.println(date); } How can I change it so that it only prints out 1/1/2009? 回答1: Use SimpleDateFormat: GregorianCalendar startDate = new GregorianCalendar(2009,

问题 i am using a executing a query select lastlevel as VERSION,name as DESCRIPTION, TO_DATE(lastdate, 'DDMONYYYY_HH24:MI:SS') as RELEASEDATE from mytable where rownum<=10 here the column lastdate is of varchar type which give result like this Version Release Date 1.0 2002-11-22 2.0 2003-02-08 i am setting the result of the above query like this here setLastDate is of calender type,so i am setting the result of release date in the method like if (rs.getString("VERSION") != null ) { bean