Question

How to create a list of dates between a start and end date in Java

Answer 1

import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;

public class DateRangeProgram {

    // Generate a list of dates from start to end (inclusive)
    public static List<LocalDate> generateDates(LocalDate start, LocalDate end) {
        List<LocalDate> dates = new ArrayList<>();

        if (start.isAfter(end)) {
            return dates; // empty
        }

        for (LocalDate d = start; !d.isAfter(end); d = d.plusDays(1)) {
            dates.add(d);
        }

        return dates;
    }

    public static void main(String[] args) {
        LocalDate start = LocalDate.of(2026, 1, 3);
        LocalDate end   = LocalDate.of(2026, 1, 12);

        List<LocalDate> dates = generateDates(start, end);

        System.out.println("Generated " + dates.size() + " dates:");
        for (LocalDate d : dates) {
            System.out.println(d);
        }
    }
}


/*
run:

Generated 10 dates:
2026-01-03
2026-01-04
2026-01-05
2026-01-06
2026-01-07
2026-01-08
2026-01-09
2026-01-10
2026-01-11
2026-01-12

*/

 

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