I want list of date of every week based on pass dynamically Mon Tue Wed Thu Fri Sat Sun between startDate and endDate using Java 8 LocaleDate

Question

required List weekly date between startDate and endDate and  passing String like "Mon ,Tue, Wed, Thu, Fri, Sat, Sun" it may be fully week or custom day of week  using LocaleDate java 8

when i pass only " Wed, Thu" then every week of two date list return between startDate and endDate.

Answer 1

Hey, @Rkbhushan

Here goes an example regarding your query.

To list weekday names, use the getWeekdays () from the DateFormatSymbols class in Java.

DateFormatSymbols is a class for encapsulating localizable date-time formatting data.

Get weekday month names in an array −

String[] days = new DateFormatSymbols().getWeekdays ();

Display the weekdays −

for (int i = 0; i < days.length; i++) {
   String weekday = days[i];
   System.out.println(weekday);
}

Output

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday

It will be better for us to resolve your query if you kindly post your exact week based lists between the start date and end date.

Answer 2

public List<LocalDate> getWeeklyDateByStringofDays(String daysOfWeek, LocalDate startDate,
      LocalDate endDate) {
    final int days = (int) startDate.until(endDate, ChronoUnit.DAYS);
    return Stream.iterate(startDate, d -> d.plusDays(1))
        .limit(days)
        .filter(d -> daysOfWeek.contains(d.getDayOfWeek()
                                          .getDisplayName(TextStyle.SHORT, Locale.US)))
        .collect(Collectors.toList());
  }