/**
 * @author lautturi.com
 * Java example: java get the first day of the current month
 */
import java.util.*;
import java.time.LocalDate;
import java.time.temporal.TemporalAdjusters;
public class Lautturi {
	@SuppressWarnings("deprecation")
	public static void main(String[] args) {
		LocalDate now = LocalDate.now();
		LocalDate firstDay = now.with(TemporalAdjusters.firstDayOfMonth());
		System.out.println("The first day of month:" + firstDay);
	}
}
output :
The first day of month:2020-11-01