CalculateDateUtils (vintage-time 4.4.0 API)

java.lang.Object
- de.alpharogroup.date.CalculateDateUtils

All Implemented Interfaces:

DatePatterns
```
public class CalculateDateUtils
extends Object
implements DatePatterns
```
Utility class for the use of Date and Calendar object.

Version:

1.0

Author:

Asterios Raptis

Field Summary
- Fields inherited from interface de.alpharogroup.date.DatePatterns
  DD_MMM_YY, DOT_DD_MM, DOT_DD_MM_YY, DOT_DD_MM_YYYY, DOT_DD_MM_YYYY_HH_MM_SS, DOT_YYYY_MM_DD_HH_MM_SS, EEE_MMM_DD_HH_MM_SS_Z_YYYY, EEEE_MMM_DD_YYYY, LHH_MM_SS, UHH_MM, UHH_MM_SS, YYYY_MM_DD, YYYY_MM_DD_HH_MM_SS, YYYY_MM_DD_HH_MM_SS_S, YYYY_MM_DD_T_HH_MM_SS, YYYYMMDDHHMMSS

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static Date`	`addDays(Date date, int addDays)` Adds days to the given Date object and returns it.
`static Date`	`addHours(Date date, int addHours)` Adds hours to the given Date object and returns it.
`static Date`	`addMilliseconds(Date date, int addMilliseconds)` Adds milliseconds to the given Date object and returns it.
`static Date`	`addMinutes(Date date, int addMinutes)` Adds minutes to the given Date object and returns it.
`static Date`	`addMonths(Date date, int addMonths)` Adds months to the given Date object and returns it.
`static Date`	`addSeconds(Date date, int addSeconds)` Adds seconds to the given Date object and returns it.
`static Date`	`addWeeks(Date date, int addWeeks)` Adds weeks to the given Date object and returns it.
`static Date`	`addYears(Date date, int addYears)` Adds years to the given Date object and returns it.
`static boolean`	`after(Date point, Date when)` Returns true if the given from Date is after the given when Date otherwise false.
`static boolean`	`before(Date point, Date when)` Returns true if the given from Date is before the given when Date otherwise false.
`static long`	`calculateElapsedTime(Date past, Date now)` Calculates the elapsed time from the past to now.
`static long`	`calculateTimeFromNow(Date now, Date future)` Calculates the elapsed time from the future to now.
`static int`	`computeAge(Date birthday, Date computeDate)` Computes the Age from the birthday till the computeDate object.
`static Date`	`computeEasternSunday(int year)` Computes the eastern sunday for the given year.
`static int`	`computeEasternSundayNumber(int year)` Computes the number from eastern sunday for the given year.
`static boolean`	`isBetween(Date start, Date end, Date between)` Checks if the Date object "between" is between from the given to Date objects.
`static boolean`	`isDateInTheFuture(Date date)` Checks if the given date object is in the future.
`static boolean`	`isDateInThePast(Date date)` Checks if the given date object is in the past.
`static boolean`	`isLeapYear(int year)` Determines if the given year is a leap year.
`static boolean`	`isValidDate(String date, String format, boolean lenient)` Checks if the Date is valid to convert.
`static Date`	`substractDaysFromDate(Date date, int substractDays)` Substract days to the given Date object and returns it.
`static Date`	`substractMonthsFromDate(Date date, int substractMonths)` Substract months to the given Date object and returns it.
`static Date`	`substractWeeksFromDate(Date date, int substractWeeks)` Substract weeks to the given Date object and returns it.
`static Date`	`substractYearsFromDate(Date date, int substractYears)` Substract years to the given Date object and returns it.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - addDays
```
public static Date addDays(Date date,
                           int addDays)
```
    Adds days to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the days.
    
    addDays - The days to add.
    
    Returns:
    
    The resulted Date object.
  - addHours
```
public static Date addHours(Date date,
                            int addHours)
```
    Adds hours to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the hours.
    
    addHours - The days to add.
    
    Returns:
    
    The resulted Date object.
  - addMilliseconds
```
public static Date addMilliseconds(Date date,
                                   int addMilliseconds)
```
    Adds milliseconds to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the milliseconds.
    
    addMilliseconds - The milliseconds to add.
    
    Returns:
    
    The resulted Date object.
  - addMinutes
```
public static Date addMinutes(Date date,
                              int addMinutes)
```
    Adds minutes to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the minutes.
    
    addMinutes - The days to add.
    
    Returns:
    
    The resulted Date object.
  - addMonths
```
public static Date addMonths(Date date,
                             int addMonths)
```
    Adds months to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the years.
    
    addMonths - The months to add.
    
    Returns:
    
    The resulted Date object.
  - addSeconds
```
public static Date addSeconds(Date date,
                              int addSeconds)
```
    Adds seconds to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the seconds.
    
    addSeconds - The seconds to add.
    
    Returns:
    
    The resulted Date object.
  - addWeeks
```
public static Date addWeeks(Date date,
                            int addWeeks)
```
    Adds weeks to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the weeks.
    
    addWeeks - The weeks to add.
    
    Returns:
    
    The resulted Date object.
  - addYears
```
public static Date addYears(Date date,
                            int addYears)
```
    Adds years to the given Date object and returns it. Note: you can add negative values too for get date in past.
    
    Parameters:
    
    date - The Date object to add the years.
    
    addYears - The years to add.
    
    Returns:
    
    The resulted Date object.
  - after
```
public static boolean after(Date point,
                            Date when)
```
    Returns true if the given from Date is after the given when Date otherwise false.
    
    Parameters:
    
    point - the point of time from where to check if it is after.
    
    when - the when
    
    Returns:
    
    true, if successful
  - before
```
public static boolean before(Date point,
                             Date when)
```
    Returns true if the given from Date is before the given when Date otherwise false.
    
    Parameters:
    
    point - the point of time from where to check if it is before.
    
    when - the when
    
    Returns:
    
    true, if successful
  - calculateElapsedTime
```
public static long calculateElapsedTime(Date past,
                                        Date now)
```
    Calculates the elapsed time from the past to now.
    
    Parameters:
    
    past - The Date object in the past.
    
    now - The Date from now.
    
    Returns:
    
    The elapsed time in long.
  - calculateTimeFromNow
```
public static long calculateTimeFromNow(Date now,
                                        Date future)
```
    Calculates the elapsed time from the future to now.
    
    Parameters:
    
    now - The Date from now.
    
    future - The Date in the future.
    
    Returns:
    
    The elapsed time in long.
  - computeAge
```
public static int computeAge(Date birthday,
                             Date computeDate)
```
    Computes the Age from the birthday till the computeDate object.
    
    Parameters:
    
    birthday - The Date object from the birthday.
    
    computeDate - The Date-object from where to compute.
    
    Returns:
    
    Returns the computed age.
  - computeEasternSunday
```
public static Date computeEasternSunday(int year)
```
    Computes the eastern sunday for the given year. Year should be greater than 1583.
    
    Parameters:
    
    year - The year to compute the eastern sunday.
    
    Returns:
    
    The eastern sunday.
  - computeEasternSundayNumber
```
public static int computeEasternSundayNumber(int year)
```
    Computes the number from eastern sunday for the given year. Year should be greater the 1583.
    
    Parameters:
    
    year - The year to compute the number from eastern sunday.
    
    Returns:
    
    The number from eastern sunday.
  - isBetween
```
public static boolean isBetween(Date start,
                                Date end,
                                Date between)
```
    Checks if the Date object "between" is between from the given to Date objects.
    
    Parameters:
    
    start - the start time.
    
    end - the end time.
    
    between - the date to compare if it is between.
    
    Returns:
    
    true, if is between otherwise false.
  - isDateInTheFuture
```
public static boolean isDateInTheFuture(Date date)
```
    Checks if the given date object is in the future.
    
    Parameters:
    
    date - The date to check.
    
    Returns:
    
    Returns true if the given date is in the future otherwise false.
  - isDateInThePast
```
public static boolean isDateInThePast(Date date)
```
    Checks if the given date object is in the past.
    
    Parameters:
    
    date - The date to check.
    
    Returns:
    
    Returns true if the given date is in the past otherwise false.
  - isLeapYear
```
public static boolean isLeapYear(int year)
```
    Determines if the given year is a leap year. Wrappes the method isLeapYear(int) from the GregorianCalendar.
    
    Parameters:
    
    year - The year to determine.
    
    Returns:
    
    True if the year is a leap year otherwise false.
  - isValidDate
```
public static boolean isValidDate(String date,
                                  String format,
                                  boolean lenient)
```
    Checks if the Date is valid to convert.
    
    Parameters:
    
    date - The Date as String
    
    format - The Format for the Date to parse
    
    lenient - Specify whether or not date/time interpretation is to be lenient.
    
    Returns:
    
    True if the Date is valid otherwise false.
  - substractDaysFromDate
```
public static Date substractDaysFromDate(Date date,
                                         int substractDays)
```
    Substract days to the given Date object and returns it.
    
    Parameters:
    
    date - The Date object to substract the days.
    
    substractDays - The days to substract.
    
    Returns:
    
    The resulted Date object.
  - substractMonthsFromDate
```
public static Date substractMonthsFromDate(Date date,
                                           int substractMonths)
```
    Substract months to the given Date object and returns it.
    
    Parameters:
    
    date - The Date object to substract the months.
    
    substractMonths - The months to substract.
    
    Returns:
    
    The resulted Date object.
  - substractWeeksFromDate
```
public static Date substractWeeksFromDate(Date date,
                                          int substractWeeks)
```
    Substract weeks to the given Date object and returns it.
    
    Parameters:
    
    date - The Date object to substract the weeks.
    
    substractWeeks - The weeks to substract.
    
    Returns:
    
    The resulted Date object.
  - substractYearsFromDate
```
public static Date substractYearsFromDate(Date date,
                                          int substractYears)
```
    Substract years to the given Date object and returns it.
    
    Parameters:
    
    date - The Date object to substract the years.
    
    substractYears - The years to substract.
    
    Returns:
    
    The resulted Date object.

Class CalculateDateUtils

Field Summary

Fields inherited from interface de.alpharogroup.date.DatePatterns

Method Summary

Methods inherited from class java.lang.Object

Method Detail

addDays

addHours

addMilliseconds

addMinutes

addMonths

addSeconds

addWeeks

addYears

after

before

calculateElapsedTime

calculateTimeFromNow

computeAge

computeEasternSunday

computeEasternSundayNumber

isBetween

isDateInTheFuture

isDateInThePast

isLeapYear

isValidDate

substractDaysFromDate

substractMonthsFromDate

substractWeeksFromDate

substractYearsFromDate