Answers for "calculate the difference between two dates java without date functions"

java find time between two dates

public static String getAge(String birthdate) throws ParseException {
		LocalDate parsed = LocalDate.parse("1970-01-01");
		LocalDate current = LocalDate.now();
		
		Period p = Period.between(parsed, current);

  		// Returns time between date and now
		return p.getYears() + " Years, " + p.getMonths() + " Months, " + p.getDays() + " Days";
	}