Examples of java.util.Calendar.compareTo()

java.util.Calendar.compareTo()

Compares the time values (millisecond offsets from the Epoch) represented by two Calendar objects. @param anotherCalendar the Calendar to be compared. @return the value 0 if the time represented by the argumentis equal to the time represented by this Calendar; a value less than 0 if the time of this Calendar is before the time represented by the argument; and a value greater than 0 if the time of this Calendar is after the time represented by the argument. @exception NullPointerException if the specified Calendar isnull. @exception IllegalArgumentException if the time value of thespecified Calendar object can't be obtained due to any invalid calendar values. @since 1.5


        Calendar calendar = Calendar.getInstance();
        calendar.setTime(actual);


        int minValue = calendar.compareTo(MIN_DATE_CALENDAR);
        int maxValue = calendar.compareTo(MAX_DATE_CALENDAR);


        boolean result = (0 <= minValue) && (maxValue <= 0);


        return result;
    }

  private static boolean hasEquivalentDates( Calendar[] dates ) {
    
    for (int i = 0; i < dates.length; i++) {
      Calendar date1 = dates[ i ];
      for (int j = i + 1; j < dates.length; j++) {
        if( date1.compareTo( dates[ j ] ) == 0 ) {
          return true;
        }
      }
    }
    return false;

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