How to format date to 01-JAN-2021 using java

Question

Let's say I have a date like Fri Jul 16 12:04:35 EAT 2021

I want to change it to 16-JUL-2021. How do I go about it?

Take a look at `DateTimeFormatter` class documentation here - https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html — Vini, Jul 16 '21 at 09:22
If it can be in any format, then you can't do anything predictable. — ernest_k, Jul 16 '21 at 09:26

score 4 · Accepted Answer · answered Jul 16 '21 at 09:57

4

ZonedDateTime zdt = ZonedDateTime.parse("Fri Jul 16 12:04:35 EAT 2021", DateTimeFormatter.ofPattern("EEE MMM d HH:mm:ss z yyyy
"));
String newDate = zdt.format(DateTimeFormatter.ofPattern("dd-MMM-yyyy")).toUpperCase();

answered Jul 16 '21 at 09:57

g00se

3,207
2
5
9

score 1 · Answer 2 · answered Jul 16 '21 at 09:55

1

You can use SimpleDateFormat:

import java.text.SimpleDateFormat;
//...
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("dd-LLL-yyyy");
String text = sdf.format(date);

answered Jul 16 '21 at 09:55

yuri777

377
3
7

1

Yea ... but `Date` and `SimpleDateFormat` are legacy classes. For Java 8 and later, you should be using the `java.time` classes. – Stephen C Jul 16 '21 at 10:07

score -1 · Answer 3 · answered Jul 16 '21 at 09:42

    String startDateInput = "Fri Jul 16 12:04:35 EAT 2021";
    String date = startDateInput.substring(8, 10) + "-" +  
                  startDateInput.substring(4, 7) + "-"
                  + startDateInput.substring(startDateInput.length() - 4);

How to format date to 01-JAN-2021 using java

3 Answers3