1SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
2		
3Date birth = sdf.parse("2000-01-01");
4Date now = new Date(System.currentTimeMillis());
5		
6Calendar c = Calendar.getInstance();
7c.setTimeInMillis(now.getTime() - birth.getTime());
8int y = c.get(Calendar.YEAR)-1970;
9int m = c.get(Calendar.MONTH);
10int d = c.get(Calendar.DAY_OF_MONTH)-1;

1LocalDate jamesBirthDay = new LocalDate(1955, 5, 19);
2LocalDate now = new LocalDate(2015, 7, 30);
3        
4int monthsBetween = Months.monthsBetween(jamesBirthDay, now).getMonths();
5int yearsBetween = Years.yearsBetween(jamesBirthDay, now).getYears();
6        
7System.out.println("Month since father of Java born : " 
8                    + monthsBetween);
9System.out.println("Number of years since father of Java born : " 
10                    + yearsBetween);

1import java.time.*;
2import java.util.*;
3
4public class Exercise1 {  
5   public static void main(String[] args)
6    {
7        LocalDate pdate = LocalDate.of(2012, 01, 01);
8        LocalDate now = LocalDate.now();
9 
10        Period diff = Period.between(pdate, now);
11 
12     System.out.printf("\nDifference is %d years, %d months and %d days old\n\n", 
13                    diff.getYears(), diff.getMonths(), diff.getDays());
14  }
15}
16
17