CODEWITHSUNDEEP
java
Romain Lebran
Romain Lebran

Reputation: 38

Using DateTimeFormatter on january first cause an invalid year value

When i'm using a DateTimeFormatter (code bellow) on a LocalDate set to January 1st 2017 i am ending with a wrong year value.

LocalDate.of(2017,1,1).toString

This will properly display 2017-01-01 while

LocalDate.of(2017,1,1).format(DateTimeFormatter.ofPattern("dd MMM YYYY"))

Is giving me: 01 janv. 2016. Do you have any idea why this is happening?

Upvotes: 1

Views: 691

Answers (1)

AxelH
AxelH

Reputation: 14572

Your are using the "wrong" year.

 Symbol  Meaning            Presentation    Examples  
 ------  -------            ------------    -------  
 y       year-of-era        year            2004; 04  
 Y       week-based-year    year            1996; 96

Source : DateTimeFormatter

This is basically using the first day of the current week to see in what year it was instead of the actual day.

One of the issues is that this is Local dependent...

You should have used DateTimeFormatter.ofPattern("dd MMM yyyy").

Upvotes: 7

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