DateTimeParseException; Text '2018-10-18 00:00:00' could not be parsed at index 4

Question

I'm having some difficulty finding the right way to parse a date.

I receive the date as a String in the following format: '2018-10-18 00:00:00'

I need to convert it to 18/10/2018 and store in a variable startDate

I then need a new variable to hold an endDate variable so roll the date forward by a week.

My code:

public String getStartDate(String startDate){

    DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd/MM/yyyy");

    LocalDate localStartDate = LocalDate.parse(startDate, formatter);

    String startDateFormatted = localStartDate.format(formatter);

    return startDateFormatted;
}

public LocalDate getEndDate(String startDate) {
    LocalDate localEndDate = LocalDate.parse(getStartDate(startDate)).plusDays(7);
    return localEndDate;
}

My error is:

java.time.format.DateTimeParseException: Text '2018-10-18 00:00:00' could 
not be parsed at index 4

Index 4 suggests the '-' char. Not sure the formatter pattern for removing the ISO time format that's in the original String

I'm wading through the Javadocs now but can anyone tell me how I can fix?

Answer 1

Your input format is wrong. Try this:

public String getStartDate(String startDate)
{
    DateTimeFormatter inputFormat = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
    DateTimeFormatter outputFormat = DateTimeFormatter.ofPattern("dd/MM/yyyy");

    return LocalDate.parse(startDate, inputFormat).format(outputFormat);
}