Output each Monday of a given month.

LocalDate.java

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.util.Arrays;
import java.util.Scanner;

class Main {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int[] input = Arrays.stream(sc.nextLine().split(" ")).mapToInt(Integer::parseInt).toArray();

        LocalDate date = LocalDate.of(input[0], input[1], 1);

        for (int i = 0; i < date.lengthOfMonth(); i++) {
            if (date.plusDays(i).getDayOfWeek() == DayOfWeek.MONDAY) {
                System.out.println(date.plusDays(i));
            }
        }
    }

}