How to convert two digit year to full year using Java 8 time API

Question

I wish to remove the Joda-Time library from my project.

I am trying to convert a two digit year to full year. The following code from Joda-Time can fulfil the purpos

Answer 1

You could parse the year directly using formatter.parse(input, Year::from) :

import java.time.*;
import java.time.format.*;
class Main {
  public static void main(String[] args) {
    DateTimeFormatter TWO_YEAR_FORMATTER = DateTimeFormatter.ofPattern("yy");
    Year year = TWO_YEAR_FORMATTER.parse("99", Year::from);
    System.out.println(year);
  }
}

Note that this will output 2099. To output 1999, you should use a specific formatter like the one suggested by Ole V.V. in their answer.