Get Week Number of LocalDate (Java 8) [duplicate]

Answer 1

One small warning. I haven't tested this yet, but looking at the API documentation of WeekFields and LocalDate.get, you should do something like:

LocalDate date = ...;
// Or use a specific locale, or configure your own rules
WeekFields weekFields = WeekFields.of(Locale.getDefault()); 
int weekNumber = date.get(weekFields.weekOfWeekBasedYear());