Java Timestamp - How can I create a Timestamp with the date 23 09 2007

Question

How can I create a Timestamp with the date 23 09 2007

User · Answer

According to the API the constructor which would accept year  month  and so on is deprecated  Instead you should use the Constructor which accepts a long  You could use a Calendar implementation to construct the date you want and access the time-representation as a long  for example with the getTimeInMillis method

User · Answer

By Timestamp  I presume you mean java sql Timestamp  You will notice that this class has a constructor that accepts a long argument  You can parse this using the DateFormat class   DateFormat dateFormat   new SimpleDateFormat  dd MM yyyy    Date date   dateFormat parse  23 09 2007    long time   date getTime    new Timestamp time

User · Answer

A more general answer would be to import java util Date  then when you need to set a timestamp equal to the current date  simply set it equal to new Date

User · Answer

What about this   java sql Timestamp timestamp   java sql Timestamp valueOf  2007-09-23 10 10 10 0

User · Answer

You could also do the following      untested Calendar cal   GregorianCalendar getInstance    cal set Calendar DAY OF MONTH  23     I might have the wrong Calendar constant    cal set Calendar MONTH  8     -1 as month is zero-based cal set Calendar YEAR  2009   Timestamp tstamp   new Timestamp cal getTimeInMillis

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tl dr  java sql Timestamp from       LocalDate of   2007   9   23                 atStartOfDay  ZoneId of    America Montreal                    toInstant       java time  Let   s update this page by showing code using the java time framework built into Java 8 and later    These new classes are inspired by Joda-Time  defined by JSR 310  and extended by the ThreeTen-Extra project  They supplant the notoriously troublesome old date-time classes bundled with early versions of Java    In java time  an Instant is a moment on the timeline in UTC  A ZonedDateTime is an Instant adjusted into a time zone  ZoneId    Time zone is crucial here  A date of September 23  2007 cannot be translated to a moment on the timeline without applying a time zone  Consider that a new day dawns earlier in Paris than in Montr  al where it is still    yesterday      Also  a java sql Timestamp represents both a date and time-of-day  So we must inject a time-of-day to go along with the date  We assume you want the first moment of the day as the time-of-day  Note that this is not always the time 00 00 00 0 because of Daylight Saving Time and possibly other anomalies   Note that unlike the old java util Date class  and unlike Joda-Time  the java time types have a resolution of nanoseconds rather than milliseconds  This matches the resolution of java sql Timestamp   Note that the java sql Timestamp has a nasty habit of implicitly applying your JVM   s current default time zone to its date-time value when generating a string representation via its toString method  Here you see my America Los Angeles time zone applied  In contrast  the java time classes are more sane  using standard ISO 8601 formats   LocalDate d   LocalDate of   2007   9   23     ZoneId z   ZoneId of    America Montreal      ZonedDateTime zdt   d atStartOfDay  z     Instant instant   zdt toInstant     java sql Timestamp ts   java sql Timestamp from   instant       Dump to console   System out println    d      d       zdt      zdt       instant      instant       ts      ts      When run      d  2007-09-23   zdt  2007-09-23T00 00-04 00 America Montreal    instant  2007-09-23T04 00 00Z   ts  2007-09-22 21 00 00 0   By the way  as of JDBC 4 2  you can use the java time types directly  No need for java sql Timestamp     PreparedStatement setObject ResultSet getObject     About java time  The java time framework is built into Java 8 and later  These classes supplant the troublesome old legacy date-time classes such as java util Date  Calendar   amp  SimpleDateFormat   The Joda-Time project  now in maintenance mode  advises migration to the java time classes   To learn more  see the Oracle Tutorial  And search Stack Overflow for many examples and explanations  Specification is JSR 310   You may exchange java time objects directly with your database  Use a JDBC driver compliant with JDBC 4 2 or later  No need for strings  no need for java sql   classes   Where to obtain the java time classes     Java SE 8  Java SE 9  Java SE 10  Java SE 11  and later  - Part of the standard Java API with a bundled implementation    Java 9 adds some minor features and fixes   Java SE 6 and Java SE 7   Most of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   Later versions of Android bundle implementations of the java time classes  For earlier Android   lt 26   the ThreeTenABP project adapts ThreeTen-Backport  mentioned above   See How to use ThreeTenABP        The ThreeTen-Extra project extends java time with additional classes  This project is a proving ground for possible future additions to java time  You may find some useful classes here such as Interval  YearWeek  YearQuarter  and more

User · Answer

What do you mean timestamp   If you mean milliseconds since the Unix epoch   GregorianCalendar cal   new GregorianCalendar 2007  9 - 1  23   long millis   cal getTimeInMillis      If you want an actual java sql Timestamp object   Timestamp ts   new Timestamp millis

User · Answer

For completeness sake  also a solution with Joda-Time version 2 5 and its DateTime class   new Timestamp new DateTime 2007  9  23  0  0  DateTimeZone forID   America Montreal     getMillis

[java] Java Timestamp - How can I create a Timestamp with the date 23/09/2007?

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