date-format

问题 I'm having a problem with trying to get the DateFormat library to give me a String with the date to be formatted with 2 millisecond places instead of the usual 3. I realize this is more along the line of centi-seconds, but afaik Java doesn't support that. Here is some code to show the problem I am having. I would expect it to output to two milliseconds, but it outputs three. public class MilliSeconds { private static final String DATE_FORMAT_2MS_Digits = "yyyy-MM-dd'T'HH:mm:ss.SS'Z'"; private

问题 The pattern is "dd-MM-yyyy" I think the string "01-01-2010mwwwwwwwwwwwwwww" does not satisfy the pattern, but the following code shows the contrary. Anyone can explain why? public static void main(String[] args) throws Exception { SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy"); Date date = df.parse("01-01-2010mwwwwwwwwwwwwwww"); System.out.println(date); } Thanks 回答1: The parse method does not try to match the entire input string. That is, the prefix 01-01-2010 matches, and that's

问题 As you probably know, you can setup date format in the Settings of an Android device. In code how do we make sure that we use that format for date display? 回答1: Try android.text.format.DateFormat , notably getDateFormatOrder() to get the user's preferred date format. 回答2: You can retrieve both the date format as well as the time format like this: DateFormat timeFormat; DateFormat dateFormat; dateFormat = android.text.format.DateFormat.getDateFormat(context); timeFormat = android.text.format

问题 I ran in to this bug while trying to parse the few dates through parse_dates of pandas.read_csv() . In the following code snippet, I'm trying to parse dates that have format dd/mm/yy which is resulting me an improper conversion. For some cases, the date field is considered as month and vice versa. To keep it simple, for some cases dd/mm/yy get converted to yyyy-dd-mm instead of yyyy-mm-dd . Case 1: 04/10/96 is parsed as 1996-04-10, which is wrong. Case 2: 15/07/97 is parsed as 1997-07-15,

问题 Lets say I have a string that represents a date that looks like this: "Wed Jul 08 17:08:48 GMT 2009" So I parse that string into a date object like this: DateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss ZZZ yyyy"); Date fromDate = (Date)formatter.parse(fromDateString); That gives me the correct date object. Now I want to display this date as a CDT value. I've tried many things, and I just can't get it to work correctly. There must be a simple method using the DateFormat class

问题 I have a problem with date value in excel using vba. I mae a userform that inseret date and other data. When i push the button it insert the date into a cell in a sheet. My problem is that when it copy the date in the textbox it copy it in mm/dd/yyyy instead of dd/mm/yyyy. Here is the code: Private Sub ins_stampa_btn_Click() ' FUNZIONALITA' EVENTO BOTTONE "INSERISCI IN STAMPA" DI INSERIMENTO PER LA STAMPA DELLE SPEDIZIONI ' PER DATA, FORNITORE, CORRIERE E MERCE ' CONTROLLO SE IL TEXTBOX DATA

问题 I'm developing an app in which I'm saving the date and time in Firebase and then retrieving it for the user to see. What I want is I want user to see that time and date according to their local timezone. for ex - if the time and date saved in database is '2:07 PM' and 'Fri, Jun 24', then to the users in PST timezone, it should be shown as '1:37 AM' and 'Fri, Jun 24'. Here's how I'm getting time and date: DateFormat currentTime = new SimpleDateFormat("h:mm a"); final String time = currentTime

问题 IST timezone is not recognised by NSDateFormatter. Following date is recognised let dateString = "Jun 10, 2015 @ 12.30 AM PDT" let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "MMM-dd-yyyy @ hh-mm-a-zzz" let date = dateFormatter.dateFromString(dateString) but time with IST timezone is not recognised. let dateString = "Jun 10, 2015 @ 12.30 AM IST" let dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "MMM-dd-yyyy @ hh-mm-a-zzz" let date = dateFormatter.dateFromString

问题 How to format my date in Android. I have String which gets date in below format String format = java.text.DateFormat.getDateTimeInstance().format(Calendar.getInstance().getTime()); Output 25 Nov 2013 17:39:00 I want this to be converted in below format dd/mm/yy 5:39PM I am using below code to get Date. Also how to get that format into String ? 回答1: Using SimpleDateFormat class you can do it. SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yy hh:mm"); String format = sdf.format(Calendar

问题 I want to convert a column of dates from a cell from the format mm/dd/yyyy (They come in the form 4/10/2007, or with double digit months, 10/10/2007) to yyyy-mm-dd, and plot it. So I need to turn mm/dd/yyyy into serial date number. When the date column is already in the form yyyy-mm-dd, the following code works: DateString = PM25data(:,11); % Pull out dates formatIn = 'yyyy-mm-dd'; x1 = datenum(DateString,formatIn); % Convert to datnum However, since the date form here is mm/dd/yyyy (for