simpledateformat

问题 I have a date input date like this: {ts '2012-08-13 02:30:01'} I believe I can escape the invalid part with single quotes, but I have a single quote within the invalid part. How do I escape that? I tried a couple of patterns but it is not working. Thanks, 回答1: According to the javadocs for SimpleDateFormat Text can be quoted using single quotes (') to avoid interpretation. "''" represents a single quote . So a format string like: "'{ts '''yyyy-MM-dd HH:mm:ss'''}'" should match {ts '2012-08-13

问题 Referring to the SimpleDateFormat docs, the pattern character for representing years is y , so we have representations like yy and yyyy (13, 2013 respectively). That's fine. When I output the DEFAULT / SHORT / MEDIUM / LONG / FULL patterns for most locales, I get something along these lines: (EG: New Zealand) Default: d/MM/yyyy Short: d/MM/yy Medium: d/MM/yyyy Long: d MMMM yyyy Full: EEEE, d MMMM yyyy However looking at some locales, eg France, I get this: Default: j MMM aaaa Short: jj/MM/aa

问题 I need to parse a date from input string using date pattern "yyyy-MM-dd", and if date will come in any other format, throw an error. This is my piece of code where I parse the date: private void validateDate() throws MyException { Date parsedDate; String DATE_FORMAT = "yyyy-MM-dd"; try{ parsedDate = new SimpleDateFormat(DATE_FORMAT).parse(getMyDate()); System.out.println(parsedDate); } catch (ParseException e) { throw new MyException(“Error occurred while processing date:” + getMyDate()); } }

问题 This question already has answers here : Java Date object from String not working properly (2 answers) Closed 2 years ago . I am using SimpleDateFormat class to set pattern and using the parse method to parse the String to Date object. But when I am printing the Date object without using method format() : SimpleDateFormat format = new SimpleDateFormat("YYYY-MM-dd"); Date dat1 = format.parse("2017-11-01"); System.out.println(dat1); My result is: Sun Dec 30 00:00:00 UTC 1990 回答1: tl;dr

问题 I have strange problem with time format conversion. I have string , time = "11:00" I have to convert above string to date and I am doing the following: Calendar cal= Calendar.getInstance(); cal.setTime(Convert.fromShortTime(timeIn)); // this method is below public static SimpleDateFormat SHORT_TIME = new SimpleDateFormat("HH:mm"); public static Date fromShortTime(String shortTime) { try { return shortTime == null ? null : SHORT_TIME.parse(shortTime); } catch (ParseException e) { return null;

问题 This question already has answers here : Java string to date conversion (13 answers) Closed 3 years ago . Given the following String and formatter settings: final SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss zzz yyyy"); final String date = "Mon Jan 25 16:33:06 CET 2016"; pojo.setTimestamp(formatter.parse(date)); I get an exception and do not understand what I should do to resolve it. 回答1: I suspect the problem is with the locale used in the SimpleDateFormat . By

问题 Below is the my code for Simple date format.Where iam getting o/p as 2012-03-13 13:15:00-4:00 2012/03/13 13:15:00 +0530 but i need the o/p in the format MM/dd/yyyy HH:mm public class Time { public static void main(String args[]) throws ParseException { SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); SimpleDateFormat ti=new SimpleDateFormat("MM/dd/yyyy HH:mm"); SimpleDateFormat sdf1=new SimpleDateFormat("yyyy/MM/dd HH:mm:ss Z"); String dt= "2012-03-13T13:15:00-4:00"; String

问题 I've searched a lot about this but I didn't find a way to check if a text written by the user in an EditText matches a SimpleDateFormat, is there a simple way to do that without using regex ? Here is my SimpleDateFormat : SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); And I want to test if a String respects that format. 回答1: You may use a TextWatcher to listen input changes to your EditText and may perform appropriate actions in either of its provided method.

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 I'm trying to convert a String that represents a date stored in SQLITE. The date was stored into sqlite as follows: Date date; date.toString(); According with Java documentation, toString() method: Returns a string representation of this Date. The formatting is equivalent to using a SimpleDateFormat with the format string "EEE MMM dd HH:mm:ss zzz yyyy", which looks something like "Tue Jun 22 13:07:00 PDT 1999". The current default time zone and locale are used. If you need control over the