Module javafx.base
Package javafx.util

Class Duration

    • Constructor Summary

      Constructors 
      Constructor Description
      Duration​(double millis)
      Creates a new Duration with potentially fractional millisecond resolution.
    • Method Summary

      Modifier and Type Method Description
      Duration add​(Duration other)
      Add this instance and another Duration instance to return a new Duration instance.
      int compareTo​(Duration d)
      Compares durations represented by this object and the specified object.
      Duration divide​(double n)
      Divide this instance by a number to return a new Duration instance.
      Duration divide​(Duration other)
      Deprecated.
      This method produces surprising results by not taking units into account.
      boolean equals​(Object obj)
      Indicates whether some other object is "equal to" this one.
      boolean greaterThan​(Duration other)
      Returns true if the specified duration is greater than (>) this instance.
      boolean greaterThanOrEqualTo​(Duration other)
      Returns true if the specified duration is greater than or equal to (>=) this instance.
      int hashCode()
      Returns a hash code for this Duration object.
      static Duration hours​(double h)
      Factory method that returns a Duration instance representing the specified number of hours.
      boolean isIndefinite()
      Gets whether this Duration instance is Indefinite.
      boolean isUnknown()
      Gets whether this Duration instance is Unknown.
      boolean lessThan​(Duration other)
      Returns true if the specified duration is less than (<) this instance.
      boolean lessThanOrEqualTo​(Duration other)
      Returns true if the specified duration is less than or equal to (<=) this instance.
      static Duration millis​(double ms)
      Factory method that returns a Duration instance for a specified number of milliseconds.
      static Duration minutes​(double m)
      Factory method that returns a Duration instance representing the specified number of minutes.
      Duration multiply​(double n)
      Multiply this instance with a number representing millis and return a new Duration.
      Duration multiply​(Duration other)
      Deprecated.
      This method produces surprising results by not taking units into account.
      Duration negate()
      Return a new Duration instance which has a negative number of milliseconds from this instance.
      static Duration seconds​(double s)
      Factory method that returns a Duration instance representing the specified number of seconds.
      Duration subtract​(Duration other)
      Subtract other Duration instance from this instance to return a new Duration instance.
      double toHours()
      Returns the number of hours in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
      double toMillis()
      Returns the number of milliseconds in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
      double toMinutes()
      Returns the number of minutes in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
      double toSeconds()
      Returns the number of seconds in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
      String toString()
      Returns a string representation of this Duration object.
      static Duration valueOf​(String time)
      Factory method that returns a Duration instance for a specified amount of time.
    • Field Detail

      • ZERO

        public static final Duration ZERO
        A Duration of 0 (no time).
      • ONE

        public static final Duration ONE
        A Duration of 1 millisecond.
      • INDEFINITE

        public static final Duration INDEFINITE
        An Infinite Duration.
      • UNKNOWN

        public static final Duration UNKNOWN
        A Duration of some unknown amount of time.
    • Constructor Detail

      • Duration

        public Duration​(double millis)
        Creates a new Duration with potentially fractional millisecond resolution.
        Parameters:
        millis - The number of milliseconds
    • Method Detail

      • valueOf

        public static Duration valueOf​(String time)
        Factory method that returns a Duration instance for a specified amount of time. The syntax is "[number][ms|s|m|h]".
        Parameters:
        time - A non-null string properly formatted. Leading or trailing spaces will not parse correctly. Throws a NullPointerException if time is null.
        Returns:
        a Duration which is represented by the time
      • millis

        public static Duration millis​(double ms)
        Factory method that returns a Duration instance for a specified number of milliseconds.
        Parameters:
        ms - the number of milliseconds
        Returns:
        a Duration instance of the specified number of milliseconds
      • seconds

        public static Duration seconds​(double s)
        Factory method that returns a Duration instance representing the specified number of seconds.
        Parameters:
        s - the number of seconds
        Returns:
        a Duration instance of the specified number of seconds
      • minutes

        public static Duration minutes​(double m)
        Factory method that returns a Duration instance representing the specified number of minutes.
        Parameters:
        m - the number of minutes
        Returns:
        a Duration instance of the specified number of minutes
      • hours

        public static Duration hours​(double h)
        Factory method that returns a Duration instance representing the specified number of hours.
        Parameters:
        h - the number of hours
        Returns:
        a Duration instance representing the specified number of hours
      • toMillis

        public double toMillis()
        Returns the number of milliseconds in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
        Returns:
        the Duration in fractional milliseconds
      • toSeconds

        public double toSeconds()
        Returns the number of seconds in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
        Returns:
        the Duration in fractional seconds
      • toMinutes

        public double toMinutes()
        Returns the number of minutes in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
        Returns:
        the Duration in fractional minutes
      • toHours

        public double toHours()
        Returns the number of hours in this period or Double.POSITIVE_INFINITY if the period is INDEFINITE or NaN if the period is UNKNOWN.
        Returns:
        the Duration in fractional hours
      • add

        public Duration add​(Duration other)
        Add this instance and another Duration instance to return a new Duration instance. If either instance is INDEFINITE, return INDEFINITE. If either instance is UNKNOWN, return UNKNOWN. This method does not change the value of the called Duration instance.
        Parameters:
        other - must not be null
        Returns:
        the result of adding this duration to the other duration. This is the same as millis + other.millis using double arithmetic
      • subtract

        public Duration subtract​(Duration other)
        Subtract other Duration instance from this instance to return a new Duration instance. If either instance is UNKNOWN, return UNKNOWN. Otherwise, if either instance is INDEFINITE, return INDEFINITE. This method does not change the value of the called Duration instance.
        Parameters:
        other - must not be null
        Returns:
        the result of subtracting the other duration from this duration. This is the same as millis - other.millis using double arithmetic
      • multiply

        @Deprecated
        public Duration multiply​(Duration other)
        Deprecated.
        This method produces surprising results by not taking units into account. Use multiply(double) instead.
        Multiply this instance with a number to return a new Duration instance. If either instance is INDEFINITE, return INDEFINITE. If either Duration instance is UNKNOWN, return UNKNOWN. This method does not change the value of the called Duration instance.
        Parameters:
        other - must not be null
        Returns:
        the result of multiplying this duration with the other duration. This is the same as millis * other.millis using double arithmetic
      • multiply

        public Duration multiply​(double n)
        Multiply this instance with a number representing millis and return a new Duration. If the called Duration instance is INDEFINITE, return INDEFINITE. If the called Duration instance is UNKNOWN, return UNKNOWN. This method does not change the value of the called Duration instance.
        Parameters:
        n - the amount to multiply by in fractional milliseconds
        Returns:
        the result of multiplying this duration with n. This is the same as millis * n using double arithmetic
      • divide

        public Duration divide​(double n)
        Divide this instance by a number to return a new Duration instance. If the called Duration instance is INDEFINITE, return INDEFINITE. If the called Duration instance is UNKNOWN, return UNKNOWN. This method does not change the value of the called Duration instance.
        Parameters:
        n - the amount to divide by in fractional milliseconds
        Returns:
        the result of dividing this duration with n. This is the same as millis / n using double arithmetic
      • divide

        @Deprecated
        public Duration divide​(Duration other)
        Deprecated.
        This method produces surprising results by not taking units into account. Use divide(double) instead.
        Divide this instance by another Duration to return the ratio. If both instances are INDEFINITE, return NaN. If this instance is INDEFINITE, return POSITIVE_INFINITY If the other instance is INDEFINITE, return 0.0. This function does not change the value of the called Duration instance.
        Parameters:
        other - must not be null
        Returns:
        the result of dividing this duration by the other duration. This is the same as millis / other.millis using double arithmetic
      • negate

        public Duration negate()
        Return a new Duration instance which has a negative number of milliseconds from this instance. For example, Duration.millis(50).negate() returns a Duration of -50 milliseconds. If the called Duration instance is INDEFINITE, return INDEFINITE. This function does not change the value of the called Duration instance.
        Returns:
        the result of negating this duration. This is the same as -millis using double arithmetic
      • isIndefinite

        public boolean isIndefinite()
        Gets whether this Duration instance is Indefinite. A Duration is Indefinite if it equals Duration.INDEFINITE.
        Returns:
        true if this Duration is equivalent to Duration.INDEFINITE or Double.POSITIVE_INFINITY.
      • isUnknown

        public boolean isUnknown()
        Gets whether this Duration instance is Unknown. A Duration is Unknown if it equals Duration.UNKNOWN.
        Returns:
        true if this Duration is equivalent to Duration.UNKNOWN or Double.isNaN(millis)
      • lessThan

        public boolean lessThan​(Duration other)
        Returns true if the specified duration is less than (<) this instance. INDEFINITE is treated as if it were positive infinity.
        Parameters:
        other - cannot be null
        Returns:
        true if millis < other.millis using double arithmetic
      • lessThanOrEqualTo

        public boolean lessThanOrEqualTo​(Duration other)
        Returns true if the specified duration is less than or equal to (<=) this instance. INDEFINITE is treated as if it were positive infinity.
        Parameters:
        other - cannot be null
        Returns:
        true if millis <= other.millis using double arithmetic
      • greaterThan

        public boolean greaterThan​(Duration other)
        Returns true if the specified duration is greater than (>) this instance. INDEFINITE is treated as if it were positive infinity.
        Parameters:
        other - cannot be null
        Returns:
        true if millis > other.millis using double arithmetic
      • greaterThanOrEqualTo

        public boolean greaterThanOrEqualTo​(Duration other)
        Returns true if the specified duration is greater than or equal to (>=) this instance. INDEFINITE is treated as if it were positive infinity.
        Parameters:
        other - cannot be null
        Returns:
        true if millis >= other.millis using double arithmetic
      • toString

        public String toString()
        Returns a string representation of this Duration object.
        Overrides:
        toString in class Object
        Returns:
        a string representation of this Duration object.
      • compareTo

        public int compareTo​(Duration d)
        Compares durations represented by this object and the specified object. Returns a negative integer, zero, or a positive integer as this duration is less than, equal to, or greater than the specified duration.
        Specified by:
        compareTo in interface Comparable<Duration>
        Parameters:
        d - the duration to be compared.
        Returns:
        a negative integer, zero, or a positive integer as this duration is less than, equal to, or greater than the specified duration.
      • equals

        public boolean equals​(Object obj)
        Indicates whether some other object is "equal to" this one.
        Overrides:
        equals in class Object
        Parameters:
        obj - the reference object with which to compare.
        Returns:
        true if this object is equal to the obj argument; false otherwise.
      • hashCode

        public int hashCode()
        Returns a hash code for this Duration object.
        Overrides:
        hashCode in class Object
        Returns:
        a hash code for this Duration object.