Nested exception is java.time.format.DateTimeParseException: Text '3030821'

Question

How can I parse this String

to date like

303-08-21

I mean AD year (Anno Domini),

I would also like this solution to be resistant to String like 20200820

Do you mean year 303 of the Common Era (CE or AD)? If not, what? — erickson, Oct 16 '20 at 21:09
Does this answer your question? [Java string to date conversion](https://stackoverflow.com/questions/4216745/java-string-to-date-conversion) — andrewJames, Oct 16 '20 at 21:23

Arvind Kumar Avinash · Accepted Answer · 2020-10-16T21:24:23.910

2

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.parse("3030821", DateTimeFormatter.ofPattern("uuuMMdd"));
        System.out.println(date.format(DateTimeFormatter.ofPattern("u-MM-dd")));

        date = LocalDate.parse("20200820", DateTimeFormatter.ofPattern("uuuMMdd"));
        System.out.println(date.format(DateTimeFormatter.ofPattern("u-MM-dd")));
    }
}

Output:

303-08-21
2020-08-20

Learn more about the modern date-time API at Trail: Date Time.

edited Oct 16 '20 at 21:24

answered Oct 16 '20 at 21:10

Arvind Kumar Avinash

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I would also like this solution to be resistant to String like 20200820 – merc-angel Oct 16 '20 at 21:12
1

@erickson - Got it! Thank you for the suggestion. Reverted to the original solution. – Arvind Kumar Avinash Oct 16 '20 at 21:25
For other visitors to this answer, I found the following helpful: [What is the difference between `u` and `y` (and `Y`) in those datetime formatter strings?](https://stackoverflow.com/questions/29014225/what-is-the-difference-between-year-and-year-of-era). – andrewJames Oct 16 '20 at 21:30

Nested exception is java.time.format.DateTimeParseException: Text '3030821'

1 Answers1