How do I convert the date from one format to another date object in another format without using any deprecated classes

Question

I d like to convert a date in date1 format to a date object in date2 format       SimpleDateFormat simpleDateFormat   new SimpleDateFormat  MMMM dd  yyyy        SimpleDateFormat simpleDateFormat1   new SimpleDateFormat  yyyyMMdd        Calendar cal   Calendar getInstance        cal set 2012  8  21       Date date   cal getTime        Date date1   simpleDateFormat parse date       Date date2   simpleDateFormat parse date1       println date1     println date2

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Hope this will help someone    public static String getDate          String date  String currentFormat  String expectedFormat  throws ParseException          Validating if the supplied parameters is null      if  date    null    currentFormat    null    expectedFormat    null             return null               Create SimpleDateFormat object with source string date format     SimpleDateFormat sourceDateFormat   new SimpleDateFormat currentFormat          Parse the string into Date object     Date dateObj   sourceDateFormat parse date          Create SimpleDateFormat object with desired date format     SimpleDateFormat desiredDateFormat   new SimpleDateFormat expectedFormat          Parse the date into another format     return desiredDateFormat format dateObj  toString

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Convert input format 19-FEB-16 01 00 00 000000000 PM to 2016-02-19 01 00 000 PM     SimpleDateFormat inFormat   new SimpleDateFormat  dd-MMM-yy hh mm ss SSSSSSSSS aaa        Date today   new Date                 Date d1   inFormat parse  19-FEB-16 01 00 00 000000000 PM         SimpleDateFormat outFormat   new SimpleDateFormat  yyyy-MM-dd hh mm ss SSS aaa         System out println  Out date    outFormat format d1

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Please refer to the following method  It takes your date String as argument1  you need to specify the existing format of the date as argument2  and the result  expected  format as argument 3   Refer to this link to understand various formats  Available Date Formats  public static String formatDateFromOnetoAnother String date String givenformat String resultformat         String result           SimpleDateFormat sdf      SimpleDateFormat sdf1       try           sdf   new SimpleDateFormat givenformat           sdf1   new SimpleDateFormat resultformat           result   sdf1 format sdf parse date              catch Exception e            e printStackTrace            return               finally           sdf null          sdf1 null            return result

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Since Java 8  we can achieve this as follows   private static String convertDate String strDate           for strdate   2017 July 25      DateTimeFormatter f   new DateTimeFormatterBuilder   appendPattern  yyyy MMMM dd                                            toFormatter         LocalDate parsedDate   LocalDate parse strDate  f       DateTimeFormatter f2   DateTimeFormatter ofPattern  MM d yyyy         String newDate   parsedDate format f2        return newDate      The output will be    07 25 2017

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import java text DateFormat  import java text SimpleDateFormat  import java util Date                String fromDateFormat    dd MM yyyy                String fromdate   15 03 2018    Take any date               String CheckFormat    dd MMM yyyy    take another format like dd MMM yyyy              String dateStringFrom                Date DF   new Date                    try                                    DateFormatdf   DateFormat getDateInstance DateFormat SHORT                    DateFormat FromDF   new SimpleDateFormat fromDateFormat                    FromDF setLenient false       this is important                   Date FromDate   FromDF parse fromdate                    dateStringFrom   new                   SimpleDateFormat CheckFormat  format FromDate                    DateFormat FromDF1   new SimpleDateFormat CheckFormat                    DF FromDF1 parse dateStringFrom                    System out println dateStringFrom                                 catch Exception ex                                     System out println  Date error                      output - 15 03 2018          15 Mar 2018

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Kotlin equivalent of answer answered by Jo  o Silva   fun getFormattedDate originalFormat  SimpleDateFormat  targetFormat  SimpleDateFormat  inputDate  String   String       return targetFormat format originalFormat parse inputDate       Usage  In Android    getFormattedDate              SimpleDateFormat FormatUtils d MM yyyy  Locale getDefault                 SimpleDateFormat FormatUtils d MMM yyyy  Locale getDefault                 dateOfTreatment         Note  Constant values      25 Nov 2017 val d MMM yyyy    d MMM yyyy      25 10 2017 val d MM yyyy    d MM yyyy

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Try this This is the simplest way of changing one date format to another public String changeDateFormatFromAnother String date        SuppressLint  quot SimpleDateFormat quot   DateFormat inputFormat   new SimpleDateFormat  quot yyyy-MM-dd hh mm ss quot         SuppressLint  quot SimpleDateFormat quot   DateFormat outputFormat   new SimpleDateFormat  quot dd MMMM yyyy quot        String resultDate    quot  quot       try           resultDate outputFormat format inputFormat parse date          catch  ParseException e            e printStackTrace              return resultDate

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Use SimpleDateFormat format   DateFormat originalFormat   new SimpleDateFormat  MMMM dd  yyyy   Locale ENGLISH   DateFormat targetFormat   new SimpleDateFormat  yyyyMMdd    Date date   originalFormat parse  August 21  2012    String formattedDate   targetFormat format date       20120821   Also note that parse takes a String  not a Date object  which is already parsed

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tl dr  LocalDate parse        January 08  2017         DateTimeFormatter ofPattern   MMMM dd  uuuu    Locale US      format  DateTimeFormatter BASIC ISO DATE      Using java time  The Question and other Answers use troublesome old date-time classes  now legacy  supplanted by the java time classes   You have date-only values  so use a date-only class  The LocalDate class represents a date-only value without time-of-day and without time zone   String input    January 08  2017   Locale l   Locale US   DateTimeFormatter f   DateTimeFormatter ofPattern   MMMM dd  uuuu    l    LocalDate ld   LocalDate parse  input   f      Your desired output format is defined by the ISO 8601 standard  For a date-only value  the    expanded    format is YYYY-MM-DD such as 2017-01-08 and the    basic    format that minimizes the use of delimiters is YYYYMMDD such as 20170108    I strongly suggest using the expanded format for readability  But if you insist on the basic format  that formatter is predefined as a constant on the DateTimeFormatter class named BASIC ISO DATE   String output   ld format  DateTimeFormatter BASIC ISO DATE      See this code run live at IdeOne com      ld toString    2017-01-08      output  20170108     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   Where to obtain the java time classes     Java SE 8 and 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 SE 7   Much of the java time functionality is back-ported to Java 6  amp  7 in ThreeTen-Backport   Android   The ThreeTenABP project adapts ThreeTen-Backport  mentioned above  for Android specifically  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

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private String formatDate String date  String inputFormat  String outputFormat         String newDate      DateFormat inputDateFormat   new SimpleDateFormat inputFormat       inputDateFormat setTimeZone TimeZone getTimeZone  UTC         DateFormat outputDateFormat   new SimpleDateFormat outputFormat       try           newDate   outputDateFormat format  inputDateFormat parse date           catch  Exception e            newDate                 return newDate

[java] How do I convert the date from one format to another date object in another format without using any deprecated classes?

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