Parse String to Date with Different Format in Java

Question

I want to convert String to Date in different formats   For example    I am getting from user   String fromDate    19 05 2009      i e   dd MM yyyy  format   I want to convert this fromDate as a Date object of  yyyy-MM-dd  format  How can I do this

User · Answer

Simple way to format a date and convert into string

    Date date= new Date();

    String dateStr=String.format("%td/%tm/%tY", date,date,date);

    System.out.println("Date with format of dd/mm/dd: "+dateStr);

output:Date with format of dd/mm/dd: 21/10/2015

User · Answer

tl dr  LocalDate parse        19 05 2009         DateTimeFormatter ofPattern   dd MM uuuu         Details  The other Answers with java util Date  java sql Date  and SimpleDateFormat are now outdated   LocalDate  The modern way to do date-time is work with the java time classes  specifically LocalDate  The LocalDate class represents a date-only value without time-of-day and without time zone   DateTimeFormatter  To parse  or generate  a String representing a date-time value  use the DateTimeFormatter class   DateTimeFormatter f   DateTimeFormatter ofPattern   dd MM uuuu     LocalDate ld   LocalDate parse   19 05 2009    f      Do not conflate a date-time object with a String representing its value  A date-time object has no format  while a String does  A date-time object  such as LocalDate  can generate a String to represent its internal value  but the date-time object and the String are separate distinct objects   You can specify any custom format to generate a String  Or let java time do the work of automatically localizing   DateTimeFormatter f        DateTimeFormatter ofLocalizedDate  FormatStyle FULL                         withLocale  Locale CANADA FRENCH     String output   ld format  f      Dump to console   System out println   ld      ld       output      output         ld  2009-05-19   output  mardi 19 mai 2009   See in action in IdeOne com     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  and later   Built-in   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   Much 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

Use the SimpleDateFormat class   private Date parseDate String date  String format  throws ParseException       SimpleDateFormat formatter   new SimpleDateFormat format       return formatter parse date       Usage   Date date   parseDate  19 05 2009    dd MM yyyy      For efficiency  you would want to store your formatters in a hashmap  The hashmap is a static member of your util class   private static Map lt String  SimpleDateFormat gt  hashFormatters   new HashMap lt String  SimpleDateFormat gt      public static Date parseDate String date  String format  throws ParseException       SimpleDateFormat formatter   hashFormatters get format        if  formatter    null                formatter   new SimpleDateFormat format           hashFormatters put format  formatter              return formatter parse date

User · Answer

A Date object has no format  it is a representation  The date can be presented by a String with the format you like    E g   yyyy-MM-dd    yy-MMM-dd    dd-MMM-yy  and etc   To acheive this you can get the use of the SimpleDateFormat  Try this           String inputString    19 05 2009      i e   dd MM yyyy  format          SimpleDateFormat fromUser   new SimpleDateFormat  dd MM yyyy             SimpleDateFormat myFormat   new SimpleDateFormat  yyyy-MM-dd             try               Date dateFromUser   fromUser parse inputString      Parse it to the exisitng date pattern and return Date type             String dateMyFormat   myFormat format dateFromUser      format it to the date pattern you prefer             System out println dateMyFormat      outputs   2009-05-19            catch  ParseException e                e printStackTrace                This outputs   2009-05-19

User · Answer

Check the javadocs for java text SimpleDateFormat It describes everything you need

User · Answer

Suppose that you have a string like this    String mDate  2019-09-17T10 56 07 827088    Now we want to change this String format separate date and time in Java and Kotlin   JAVA   we have a method for extract date    public String getDate         try           DateFormat dateFormat   new SimpleDateFormat  yyyy-MM-dd T HH mm ss SSS   Locale US           Date date   dateFormat parse mDate           dateFormat   new SimpleDateFormat  MM dd yyyy   Locale US           return dateFormat format date         catch  ParseException e            e printStackTrace              return null      Return is this   09 17 2019  And we have method for extract time    public String getTime          try           DateFormat dateFormat   new SimpleDateFormat  yyyy-MM-dd T HH mm ss SSS   Locale US           Date date   dateFormat parse mCreatedAt           dateFormat   new SimpleDateFormat  h mm a   Locale US           return dateFormat format date         catch  ParseException e            e printStackTrace              return null      Return is this   10 56 AM  KOTLIN   we have a function for extract date    fun getDate    String         var dateFormat   SimpleDateFormat  yyyy-MM-dd T HH mm ss SSS   Locale US      val date   dateFormat parse mDate        dateFormat   SimpleDateFormat  MM dd yyyy   Locale US      return dateFormat format date        Return is this   09 17 2019  And we have method for extract time    fun getTime    String        var dateFormat   SimpleDateFormat  yyyy-MM-dd T HH mm ss SSS   Locale US      val time   dateFormat parse mDate        dateFormat   SimpleDateFormat  h mm a   Locale US      return dateFormat format time        Return is this   10 56 AM

User · Answer

Take a look at SimpleDateFormat  The code goes something like this   SimpleDateFormat fromUser   new SimpleDateFormat  dd MM yyyy    SimpleDateFormat myFormat   new SimpleDateFormat  yyyy-MM-dd     try        String reformattedStr   myFormat format fromUser parse inputString      catch  ParseException e        e printStackTrace

User · Answer

While SimpleDateFormat will indeed work for your needs  additionally you might want to check out Joda Time  which is apparently the basis for the redone Date library in Java 7  While I haven t used it a lot  I ve heard nothing but good things about it and if your manipulating dates extensively in your projects it would probably be worth looking into

User · Answer

Convert a string date to java sql Date  String fromDate    19 05 2009   DateFormat df   new SimpleDateFormat  dd MM yyyy    java util Date dtt   df parse fromDate   java sql Date ds   new java sql Date dtt getTime     System out println ds    Mon Jul 05 00 00 00 IST 2010

[java] Parse String to Date with Different Format in Java

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