All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class DateTime
extends Quantity
implements java.lang.Cloneable

See Also:

Serialized Form

• Field Summary

  Fields

  Modifier and Type	Field and Description
  static int	DATE_MASK
  static int	DAY_MASK
  static java.util.TimeZone	GMT
  static int	HOURS_MASK
  static int	MINUTES_MASK
  static int	MONTH_MASK
  static int	SECONDS_MASK
  static int	TIME_MASK
  static int	TIMEZONE_MASK
  static int	YEAR_MASK

  • Fields inherited from class gnu.math.Numeric

    CEILING, FLOOR, NONNEG_MOD, ROUND, TRUNCATE

• Constructor Summary

  Constructors

  Constructor and Description
  DateTime (int mask)
  DateTime (int mask, java.util.GregorianCalendar calendar)

• Method Summary

  All Methods

  Modifier and Type	Method and Description
  static DateTime	add (DateTime x, Duration y, int k)
  Numeric	add (java.lang.Object y, int k) Return this + k * obj.
  static DateTime	addMinutes (DateTime x, int y)
  Numeric	addReversed (Numeric x, int k) Calculate x+k&this.
  static DateTime	addSeconds (DateTime x, int y)
  DateTime	adjustTimezone (int newOffset)
  DateTime	cast (int newComponents)
  static int	compare (DateTime date1, DateTime date2) Return -1, 0, or 1, depending on which value is greater.
  int	compare (java.lang.Object obj) Return an integer for which of this or obj is larger.
  int	components ()
  static int	daysInMonth (int month, int year)
  int	getDay ()
  int	getHours ()
  int	getMinutes ()
  int	getMonth ()
  int	getNanoSecondsOnly ()
  int	getSecondsOnly ()
  int	getWholeSeconds ()
  int	getYear ()
  int	getZoneMinutes ()
  boolean	isExact ()
  static boolean	isLeapYear (int year)
  boolean	isZero ()
  boolean	isZoneUnspecified ()
  static java.util.TimeZone	minutesToTimeZone (int minutes) Get a TimeZone object for a given offset.
  Complex	number ()
  static DateTime	parse (java.lang.String value, int mask)
  void	setTimeZone (java.util.TimeZone timeZone)
  static Duration	sub (DateTime date1, DateTime date2)
  java.lang.String	toString ()
  void	toString (java.lang.StringBuffer sbuf)
  void	toStringDate (java.lang.StringBuffer sbuf)
  void	toStringTime (java.lang.StringBuffer sbuf)
  static void	toStringZone (int minutes, java.lang.StringBuffer sbuf)
  void	toStringZone (java.lang.StringBuffer sbuf)
  Unit	unit ()
  DateTime	withZoneUnspecified ()

  • Methods inherited from class gnu.math.Quantity

    abs, add, compare, compareReversed, dimensions, div, divide, divReversed, doubleImagValue, doubleJmagValue, doubleKmagValue, doubleValue, im, imValue, jm, jmValue, km, kmValue, make, make, make, mul, mulReversed, neg, re, reValue, times, toString

  • Methods inherited from class gnu.math.Numeric

    add, asNumericOrNull, div_inv, equals, floatValue, geq, grt, intValue, longValue, mul_ident, power, sub, toExact, toInexact

  • Methods inherited from class java.lang.Number

    byteValue, shortValue

  • Methods inherited from class java.lang.Object

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

• Field Detail

  • YEAR_MASK

    public static final int YEAR_MASK

    See Also:

    Constant Field Values

  • MONTH_MASK

    public static final int MONTH_MASK

    See Also:

    Constant Field Values

  • DAY_MASK

    public static final int DAY_MASK

    See Also:

    Constant Field Values

  • HOURS_MASK

    public static final int HOURS_MASK

    See Also:

    Constant Field Values

  • MINUTES_MASK

    public static final int MINUTES_MASK

    See Also:

    Constant Field Values

  • SECONDS_MASK

    public static final int SECONDS_MASK

    See Also:

    Constant Field Values

  • TIMEZONE_MASK

    public static final int TIMEZONE_MASK

    See Also:

    Constant Field Values

  • DATE_MASK

    public static final int DATE_MASK

    See Also:

    Constant Field Values

  • TIME_MASK

    public static final int TIME_MASK

    See Also:

    Constant Field Values

  • GMT

    public static java.util.TimeZone GMT

• Constructor Detail

  • DateTime

    public DateTime(int mask)

  • DateTime

    public DateTime(int mask,
     java.util.GregorianCalendar calendar)

• Method Detail

  • components

    public int components()

  • cast

    public DateTime cast(int newComponents)

  • parse

    public static DateTime parse(java.lang.String value,
     int mask)

  • isLeapYear

    public static boolean isLeapYear(int year)

  • daysInMonth

    public static int daysInMonth(int month,
     int year)

  • getYear

    public int getYear()

  • getMonth

    public int getMonth()

  • getDay

    public int getDay()

  • getHours

    public int getHours()

  • getMinutes

    public int getMinutes()

  • getSecondsOnly

    public int getSecondsOnly()

  • getWholeSeconds

    public int getWholeSeconds()

  • getNanoSecondsOnly

    public int getNanoSecondsOnly()

  • compare

    public static int compare(DateTime date1,
     DateTime date2)

    Return -1, 0, or 1, depending on which value is greater.

  • compare

    public int compare(java.lang.Object obj)

    Description copied from class: Numeric
    Return an integer for which of this or obj is larger. Return 1 if this>obj; 0 if this==obj; -1 if this<obj; -2 if this!=obj otherwise (for example if either is NaN); -3 if not comparable (incompatible types).

    Overrides:

    compare in class Quantity

  • sub

    public static Duration sub(DateTime date1,
     DateTime date2)

  • withZoneUnspecified

    public DateTime withZoneUnspecified()

  • adjustTimezone

    public DateTime adjustTimezone(int newOffset)

  • add

    public static DateTime add(DateTime x,
     Duration y,
     int k)

  • addMinutes

    public static DateTime addMinutes(DateTime x,
     int y)

  • addSeconds

    public static DateTime addSeconds(DateTime x,
     int y)

  • add

    public Numeric add(java.lang.Object y,
     int k)

    Description copied from class: Numeric
    Return this + k * obj.

    Overrides:

    add in class Quantity

  • addReversed

    public Numeric addReversed(Numeric x,
     int k)

    Description copied from class: Numeric
    Calculate x+k&this.

    Overrides:

    addReversed in class Quantity

  • toStringDate

    public void toStringDate(java.lang.StringBuffer sbuf)

  • toStringTime

    public void toStringTime(java.lang.StringBuffer sbuf)

  • isZoneUnspecified

    public boolean isZoneUnspecified()

  • getZoneMinutes

    public int getZoneMinutes()

  • minutesToTimeZone

    public static java.util.TimeZone minutesToTimeZone(int minutes)

    Get a TimeZone object for a given offset.

    Parameters:

    minutes - timezone offset in minutes.

  • setTimeZone

    public void setTimeZone(java.util.TimeZone timeZone)

  • toStringZone

    public void toStringZone(java.lang.StringBuffer sbuf)

  • toStringZone

    public static void toStringZone(int minutes,
     java.lang.StringBuffer sbuf)

  • toString

    public void toString(java.lang.StringBuffer sbuf)

  • toString

    public java.lang.String toString()

    Overrides:

    toString in class Numeric

  • isExact

    public boolean isExact()

    Specified by:

    isExact in class Numeric

  • isZero

    public boolean isZero()

    Specified by:

    isZero in class Numeric

  • unit

    public Unit unit()

    Overrides:

    unit in class Quantity

  • number

    public Complex number()

    Specified by:

    number in class Quantity