// Date and time2. Local . . of to create objects.
// Difference between two dates - More than 24 hours

import java.time.*;

public class DateAndTime6 {

public static void main (String[]args) {

      // Declare outside the try ... catch
      LocalDate dob = null, today = null;

   try {
         // More than 24 hours for class Period arguements
         dob = LocalDate.of(1956, 3, 11); 
         today = LocalDate.now();
   }
   
   catch (DateTimeException ex) {
      System.out.println("Error with date and time");
   } // end catch
   
   System.out.println(dob);
   System.out.println(today);
   Period diff = Period.between(dob, today);
   System.out.println(diff);
   int years = diff.getYears();
   int months = diff.getMonths();
   int days = diff.getDays();
   System.out.print("Years:" + years + " Months:" + months + " Days:" + days);
   
   } // end main
}// end class

=======================================================================

OUTPUT - Difference in years, months and dats

 ----jGRASP exec: java DateAndTime6
1956-03-11
2021-05-30
P65Y2M19D
Years:65 Months:2 Days:19
 ----jGRASP: operation complete.