java-time

I am trying to create a DateTimeformatter to validate following date times: String date1 = "2017-07-06T17:25:28"; String date2 = "2017-07-06T17:25:28.1"; String date3 = "2017-07-06T17:25:28.12"; String date4 = "2017-07-06T17:25:28.123"; String date5 = "2017-07-06T17:25:28.1234"; String date6 = "2017-07-06T17:25:28.12345"; String date7 = "2017-07-06T17:25:28.123456"; String date8 = "2017-07-06T17:25:28."; I have tried the following date time formatter to validate above dates: public static final String DATE_TIME_FORMAT_PATTERN = "yyyy-MM-dd'T'HH:mm:ss"; DateTimeFormatter formatter1 = new

I'm writing some code to populate a MySQL database with random data for testing purposes. I need to populate a DATE column with random dates from 1970-2015. Here's the relevant method: public Date dateGenerator() throws Exception { Random ry = new Random(); Random rm = new Random(); Random rd = new Random(); int year = 1969 + ry.nextInt(2015-1969+1); int month = 1 + rm.nextInt(12); int day = 1 + rm.nextInt(31); if (month==2 && day>28){ day = day - 3; } else { if((month%2==0 && month != 8 ) && day==31 ){ day = day -1; } } } My purpose is to create three random integers (for day, month, year)

TZUpdater 2.1.0 is failing with tzdata2016g release. For Java 8 it fails with "Source directory does not contain file: VERSION" error, while it completes with "JRE updated to version : tzdataunknown" comment for Java 7. The reason of this seems to be recent change of IANA tzdata distribution: Unsetting VERSION field of Makefile. There is a bug reported regarding the issue: https://bugs.openjdk.java.net/browse/JDK-8166928 . DST date(30th October 2016) is getting closer and we at least need a workaround for this. Is it, somehow, possible? Workaround: Update Makefile of http://www.iana.org/time

I need to parse a String in the following format 2015-01-15-05:00 to LocalDate(or smth else) in UTC. The problem is that the following code: System.out.println(LocalDate.parse("2015-01-15-05:00", DateTimeFormatter.ISO_OFFSET_DATE)); outputs 2015-01-15 ignoring the offset. The desired output is 2015-01-16 Thanks in advance! The simplest answer is to use OffsetDateTime to represent the data, but you need to default the time: DateTimeFormatter fmt = new DateTimeFormatterBuilder() .append(DateTimeFormatter.ISO_OFFSET_DATE) .parseDefaulting(ChronoField.HOUR_OF_DAY, 0) .toFormatter(); OffsetDateTime

I'm trying to parse a date time string using java 8 DateTime API. The string to parse contains date, month, year and AM/PM marker such as 17/02/2015 PM . I use the following pattern: dd/MM/yyyy aa and I expect the parsed LocalDateTime time part to be set at 12:00:00 or 00:00:00 depending on the AM/PM marker. Using the former java.text.SimpleDateFormat API, the parsing works as expected using this pattern. But when i use java 8 DateTime API and run the following code: LocalDateTime.parse("17/02/2015 PM", DateTimeFormatter.ofPattern("dd/MM/yyyy aa")); I got the following exception: Exception in

This question already has an answer here: Is java.time failing to parse fraction-of-second? 3 answers LocalDateTime.parse("20150901023302166", DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS")) gives the error: java.time.format.DateTimeParseException: Text '20150901023302166' could not be parsed at index 0 A workaround is to build the formatter yourself using DateTimeFormatterBuilder and fixed width for each field. This code produces the correct result. public static void main(String[] args) { DateTimeFormatter formatter = new DateTimeFormatterBuilder() .appendValue(ChronoField.YEAR, 4)