How to convert date format 2017-02-08 00:00:00.0 to 08/02/2017 in java?

Question

I want to convert Date format from 2017-02-08 00:00:00.0 to dd/MM/yyyy(08/02/2017). I tried with the following code.

          String dateInString  =bean.getDate();
          Date date = null;
          SimpleDateFormat formatter = new SimpleDateFormat("dd/MM/yyyy");

          if (bean.getDate().matches("^[0-9]{2,4}(-[0-9]{1,2}){2}\\s[0-9]{1,2}(:[0-9]{1,2}){2}\\.[0-9]{1,}$")) {
                try {
                    date = formatter.parse(dateInString);
                } catch (ParseException e) {
                    e.printStackTrace();
                }
          }

But I am getting NullPointerException in date = formatter.parse(dateInString); line.

You'll need to handle null yourself. Start with `if(dateInString==null)` — default locale, Feb 07 '17 at 12:48

score 2 · Answer 1 · answered Feb 07 '17 at 12:37

2

You can use the below code:

SimpleDateFormat format1 = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
SimpleDateFormat format2 = new SimpleDateFormat("dd/MM/yyyy");
String date = "2017-02-08 00:00:00.0";
try {
    Date dateNew = format1.parse(date);
    String formatedDate = format2.format(dateNew);
    System.out.println(formatedDate);
} catch (ParseException e) {
    e.printStackTrace();
}

answered Feb 07 '17 at 12:37

Poornima

174
8

This is the same solution I am posting 5 min bevor your post. – naro Feb 07 '17 at 12:51
i didn't observed it....i just posted my answer. – Poornima Feb 07 '17 at 12:53

score 0 · Answer 2 · edited Feb 07 '17 at 18:13

create a SimpleDateFormat object and use it to parse Strings to Date and to format Dates to Strings. If you've tried SimpleDateFormat and it didn't work, then please show your code and any errors you may receive.

MM and mm both are different. MM points Month, mm points minutes
Some example for months

'M' - 7  (without prefix 0 if it is single digit)
'M' - 12
'MM' - 07 (with prefix 0 if it is single digit)
'MM' - 12
'MMM' - Jul (display with 3 character)
'MMMM' - December (display with full name)

Some example for minutes

'm' - 3  (without prefix 0 if it is single digit)
'm' - 19
'mm' - 03 (with prefix 0 if it is single digit)
'mm' - 19

score 0 · Answer 3 · answered Feb 07 '17 at 12:33

String dateInString = "2017-02-08 00:00:00.0";
Date date = null;
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
try {
    date = formatter.parse(dateInString);
} catch (ParseException e) {
      e.printStackTrace();
}
SimpleDateFormat formatter2 = new SimpleDateFormat("dd/MM/yyyy");
System.out.println(formatter2.format(date));

score 0 · Answer 4 · answered Feb 07 '17 at 18:05

The other Answers are outdated, using troublesome old date-time classes such as SimpleDateFormat.these old classs are now legacy, supplanted by the java.time classes.

`LocalDateTime`

Parse your input string as a LocalDateTime as the input lacks any indication of offset-from-UTC or time zone.

The input string nearly complies with standard ISO 8601 formatting. The standard formats are used by default with the java.time classes. Replace the SPACE in middle with a T.

String input = "2017-02-08 00:00:00.0".replace( " " , "T" );
LocalDateTime ltd = LocalDateTime.parse( input );

`LocalDate`

Extract a date-only object.

LocalDate ld = ltd.toLocalDate();

`DateTimeFormatter`

Generate a string representing that object's value. Specify your desired formatting pattern.

Locale l = Locale.US ;
DateTimeFormatter f = DateTimeFormatter.ofPattern( "dd/MM/uuuu" ).withLocale( l );
String output = ld.format( f );

@cricket_007 Formatting pattern code for year. See the [class documentation](https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html). — Basil Bourque, Feb 07 '17 at 18:23
Hmm. `yyyy` seems to also be equivalent in most cases. Most people don't deal with "era", I'd say — OneCricketeer, Feb 07 '17 at 18:24

How to convert date format 2017-02-08 00:00:00.0 to 08/02/2017 in java?

4 Answers4

LocalDateTime

LocalDate

DateTimeFormatter

`LocalDateTime`

`LocalDate`

`DateTimeFormatter`