Documentation API of the 'javax.measure.unit.Unit' Java class

Class Unit<Q extends Quantity>

  • All Implemented Interfaces:
    Direct Known Subclasses:
    BaseUnit, DerivedUnit

    public abstract class Unit<Q extends Quantity>extends Objectimplements Serializable

    This class represents a determinate quantity (as of length, time, heat, or value) adopted as a standard of measurement.

    It is helpful to think of instances of this class as recording the history by which they are created. Thus, for example, the string "g/kg" (which is a dimensionless unit) would result from invoking the method toString() on a unit that was created by dividing a gram unit by a kilogram unit. Yet, "kg" divided by "kg" returns ONE and not "kg/kg" due to automatic unit factorization.

    This class supports the multiplication of offsets units. The result is usually a unit not convertible to its standard unit. Such units may appear in derivative quantities. For example \xc2\xb0C/m is an unit of gradient, which is common in atmospheric and oceanographic research.

    Units raised at rational powers are also supported. For example the cubic root of "liter" is a unit compatible with meter.

    Instances of this class are immutable.

    See Also:
    Wikipedia: Units of measurement, Serialized Form

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