Lenient Java 8 Date parsing

Question

I\'d like to parse \'2015-10-01\' with LocalDateTime. What I have to do is

LocalDate localDate = LocalDate.parse(\'2015-10-01\');
LocalDateTime          


        

Answer 1

A simple solution for your particular use case is to define your own format. In this example even though I have specified a single M for the month in my pattern, and a single d for the day, it still parses both examples the same.

@Test
public void parsing_singleDigitDates_andDoubleDigitDates_areEqual()
{
    DateTimeFormatter fmt = DateTimeFormatter.ofPattern("yyyy-M-d");

    LocalDate dt1 = LocalDate.parse("2015-09-05", fmt);
    LocalDate dt2 = LocalDate.parse("2015-9-5", fmt);

    Assert.assertEquals(dt1, dt2);
}

I decided to write this answer after seeing the code soup that DateTimeFormatterBuilder requires you to write in order to solve the same problem.