Package com.jidesoft.utils

Class DateUtils

  • public class DateUtils
extends java.lang.Object
    DateUtils contains many useful methods related to Date and Calendar.

    • Constructor Summary

      Constructors 
      Constructor Description
      DateUtils()  

    • Method Summary

      All Methods Static Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      static java.util.Calendar adjustDate​(java.util.Calendar calendar, int differenceInDay)
      Adjusts the Calendar to several days before or after the current date.
      static boolean isAtMonth​(java.util.Calendar cal, int month)
      Checks if the calendar object is in the specified month, regardless of the year.
      static boolean isAtQuarter​(java.util.Calendar cal, int quarter)
      Checks if the calendar object is in the specified quarter, regardless of the year.
      static boolean isLastMonth​(java.util.Calendar cal)
      Checks if the calendar object is last month.
      static boolean isLastQuarter​(java.util.Calendar cal)
      Checks if the calendar object is last quarter.
      static boolean isLastWeek​(java.util.Calendar cal)
      Checks if the calendar object is last week.
      static boolean isLastYear​(java.util.Calendar cal)
      Checks if the calendar object is last year.
      static boolean isNextMonth​(java.util.Calendar cal)
      Checks if the calendar object is next month.
      static boolean isNextQuarter​(java.util.Calendar cal)
      Checks if the calendar object is next quarter.
      static boolean isNextWeek​(java.util.Calendar cal)
      Checks if the calendar object is next week.
      static boolean isNextYear​(java.util.Calendar cal)
      Checks if the calendar object is next year.
      static boolean isThisMonth​(java.util.Calendar cal)
      Checks if the calendar object is same month as today.
      static boolean isThisQuarter​(java.util.Calendar cal)
      Checks if the calendar object is same quarter as today.
      static boolean isThisWeek​(java.util.Calendar cal)
      Checks if the calendar object is same week as today.
      static boolean isThisYear​(java.util.Calendar cal)
      Checks if the calendar object is same year as today.
      static boolean isToday​(java.util.Calendar cal)
      Checks if the calendar object is same date as today.
      static boolean isTomorrow​(java.util.Calendar cal)
      Checks if the calendar object is same date as tomorrow.
      static boolean isYesterday​(java.util.Calendar cal)
      Checks if the calendar object is same date as yesterday.
      static java.util.Date max​(java.util.List<java.util.Date> dates)
      Deprecated.
      replaced by maxDates(java.util.List) to comply with the new compilation regulation.
      static java.util.Calendar maxCalendars​(java.util.List<java.util.Calendar> calendars)
      Returns the maximum Calendar in the Calendar list.
      static java.util.Date maxDates​(java.util.List<java.util.Date> dates)
      Returns the maximum Date in the Date list.
      static java.util.Date min​(java.util.List<java.util.Date> dates)
      Deprecated.
      replaced by minDates(java.util.List) to comply with the new compilation regulation.
      static java.util.Calendar minCalendars​(java.util.List<java.util.Calendar> calendars)
      Returns the minimum Calendar in the Calendar list.
      static java.util.Date minDates​(java.util.List<java.util.Date> dates)
      Returns the minimum Date in the Date list.
      static TimeRange rangeCalendars​(java.util.List<java.util.Calendar> calendars)
      Returns the range of Calendars in the Calendar list.
      static TimeRange rangeDates​(java.util.List<java.util.Date> dates)
      Returns the range of date in the Calendar list.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • DateUtils

        public DateUtils()

    • Method Detail

      • isToday

        public static boolean isToday​(java.util.Calendar cal)
        Checks if the calendar object is same date as today.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same date as today.

      • isThisWeek

        public static boolean isThisWeek​(java.util.Calendar cal)
        Checks if the calendar object is same week as today.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same week as today.

      • isThisMonth

        public static boolean isThisMonth​(java.util.Calendar cal)
        Checks if the calendar object is same month as today.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same month as today.

      • isThisQuarter

        public static boolean isThisQuarter​(java.util.Calendar cal)
        Checks if the calendar object is same quarter as today.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same quarter as today.

      • isThisYear

        public static boolean isThisYear​(java.util.Calendar cal)
        Checks if the calendar object is same year as today.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same year as today.

      • isYesterday

        public static boolean isYesterday​(java.util.Calendar cal)
        Checks if the calendar object is same date as yesterday.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same date as yesterday.

      • isLastWeek

        public static boolean isLastWeek​(java.util.Calendar cal)
        Checks if the calendar object is last week.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is last week.

      • isLastMonth

        public static boolean isLastMonth​(java.util.Calendar cal)
        Checks if the calendar object is last month.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is last month.

      • isLastQuarter

        public static boolean isLastQuarter​(java.util.Calendar cal)
        Checks if the calendar object is last quarter.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is last quarter.

      • isLastYear

        public static boolean isLastYear​(java.util.Calendar cal)
        Checks if the calendar object is last year.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is last year.

      • isTomorrow

        public static boolean isTomorrow​(java.util.Calendar cal)
        Checks if the calendar object is same date as tomorrow.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is the same date as tomorrow.

      • isNextWeek

        public static boolean isNextWeek​(java.util.Calendar cal)
        Checks if the calendar object is next week.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is next week.

      • isNextMonth

        public static boolean isNextMonth​(java.util.Calendar cal)
        Checks if the calendar object is next month.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is next month.

      • isNextQuarter

        public static boolean isNextQuarter​(java.util.Calendar cal)
        Checks if the calendar object is next quarter.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is next quarter.

      • isNextYear

        public static boolean isNextYear​(java.util.Calendar cal)
        Checks if the calendar object is next year.
        Parameters:
        cal - the calendar object
        Returns:
        true if the calendar object is next year.

      • isAtMonth

        public static boolean isAtMonth​(java.util.Calendar cal,
                                int month)
        Checks if the calendar object is in the specified month, regardless of the year.
        Parameters:
        cal - the calendar object.
        month - the month, starting from 0 for January. You can use the value defined in Calendar such as Calendar.JANUARY, Calendar.FEBRUARY, etc.
        Returns:
        true if the calendar object is the specified month.

      • isAtQuarter

        public static boolean isAtQuarter​(java.util.Calendar cal,
                                  int quarter)
        Checks if the calendar object is in the specified quarter, regardless of the year.
        Parameters:
        cal - the calendar object.
        quarter - the quarter, starting from 1 for the first quarter (including January, February, and March).
        Returns:
        true if the calendar object is the specified quarter.

      • adjustDate

        public static java.util.Calendar adjustDate​(java.util.Calendar calendar,
                                            int differenceInDay)
        Adjusts the Calendar to several days before or after the current date.
        Parameters:
        calendar - the Calendar object to be adjusted.
        differenceInDay - the difference in days. It accepts both position and negative number.
        Returns:
        the calendar after the adjustment. It should always be the same instance as the calendar parameter.

      • min

        @Deprecated
public static java.util.Date min​(java.util.List<java.util.Date> dates)
        Deprecated.
        replaced by minDates(java.util.List) to comply with the new compilation regulation. We have to delete the min(List) in releases earlier than 2.9.4 due to the same reason.
        Returns the minimum Date in the Date list.
        Parameters:
        dates - the list of Date to calculate the minimum.
        Returns:
        the minimum date in the Date list.

      • max

        @Deprecated
public static java.util.Date max​(java.util.List<java.util.Date> dates)
        Deprecated.
        replaced by maxDates(java.util.List) to comply with the new compilation regulation. We have to delete the max(List) in releases earlier than 2.9.4 due to the same reason.
        Returns the maximum Date in the Date list.
        Parameters:
        dates - the list of Date to calculate the maximum.
        Returns:
        the maximum date in the Date list.

      • minDates

        public static java.util.Date minDates​(java.util.List<java.util.Date> dates)
        Returns the minimum Date in the Date list.
        Parameters:
        dates - the list of Date to calculate the minimum.
        Returns:
        the minimum date in the Date list.

      • maxDates

        public static java.util.Date maxDates​(java.util.List<java.util.Date> dates)
        Returns the maximum Date in the Date list.
        Parameters:
        dates - the list of Date to calculate the maximum.
        Returns:
        the maximum date in the Date list.

      • rangeDates

        public static TimeRange rangeDates​(java.util.List<java.util.Date> dates)
        Returns the range of date in the Calendar list.
        Parameters:
        dates - the list of Dates to calculate the maximum.
        Returns:
        the range date in the Calendar list.

      • minCalendars

        public static java.util.Calendar minCalendars​(java.util.List<java.util.Calendar> calendars)
        Returns the minimum Calendar in the Calendar list.
        Parameters:
        calendars - the list of Calendar to calculate the minimum.
        Returns:
        the minimum calendar in the Calendar list.

      • maxCalendars

        public static java.util.Calendar maxCalendars​(java.util.List<java.util.Calendar> calendars)
        Returns the maximum Calendar in the Calendar list.
        Parameters:
        calendars - the list of Calendar to calculate the maximum.
        Returns:
        the maximum calendar in the Calendar list.

      • rangeCalendars

        public static TimeRange rangeCalendars​(java.util.List<java.util.Calendar> calendars)
        Returns the range of Calendars in the Calendar list.
        Parameters:
        calendars - the list of Calendar to calculate the maximum.
        Returns:
        the range of calendars in the Calendar list.