java get the number of weeks between two dates

/**
 * @author lautturi.com
 * Java example: calculate the number of weeks between two dates in java
 */

import java.util.*;
import java.util.concurrent.TimeUnit;
import java.text.ParseException;
import java.text.SimpleDateFormat;

public class Lautturi {

	public static void main(String[] args) throws ParseException {

		SimpleDateFormat myFormat = new SimpleDateFormat("yyyy-MM-dd");
		String startData = "2020-01-23";
		String endData = "2020-05-01";

		Date startDate = myFormat.parse(startData);
		Date endDate = myFormat.parse(endData);

		long datediff = endDate.getTime() - startDate.getTime(); // calculate the milliseconds between two dates in java
		int weeks = (int)(TimeUnit.DAYS.convert(datediff, TimeUnit.MILLISECONDS)/7);
		System.out.println("weeks: " +weeks);
	}
}

output:

weeks: 14