find start and end date if date is 30 days older from today?

Here we are find start and end date if date is 30 days older from today or current date in java.

• User LocalDate.now() method to get the current date.
• Now minus the 30 days from current date use currentDate.minusDays(30) method.
• This DateTimeFormatter.ISO_DATE that formats or parses a date with the offset such as ‘2025-05-20’.
• After formating we map the start date and end date in hashmap with key,value pair.
• Print the start and end date from dateParams.

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.HashMap;
import java.util.Map;

public class MinusDaysProgram {
	public static void main(String[] args) {
		
		LocalDate currentDate = LocalDate.now();
		LocalDate startDate = currentDate.minusDays(30);
		DateTimeFormatter formatter = DateTimeFormatter.ISO_DATE;
		Map<String, String> dateParams = new HashMap<String, String>();
		String startDateString = startDate.format(formatter);
		String endDateString = currentDate.format(formatter);
		dateParams.put("start_date", startDateString);
		dateParams.put("end_date", endDateString);
		
		System.out.println("find start and end date after 30 days minus is :- "+dateParams);

	}
}

Output :-
find start and end date after 30 days minus is :- {end_date=2025-05-22, start_date=2025-04-22}