
Java Units API Build 20040206 

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Object SI
This class contains SI (Système International d'Unités) base units, and derived units.
It also defines the 20 SI prefixes used to form decimal multiples and
submultiples of SI units
(e.g. Unit HECTO_PASCAL = SI.HECTO(SI.PASCAL);
)
Field Summary  
static BaseUnit 
AMPERE
The base unit for electric current quantities ( A ).

static Unit 
BECQUEREL
The derived unit for activity of a radionuclide ( Bq ).

static Unit 
BIT
The unit for binary information ( bit ). 
static BaseUnit 
CANDELA
The base unit for luminous intensity quantities ( cd ).

static Unit 
CELSIUS
The derived unit for Celsius temperature ( °C ).

static Unit 
COULOMB
The derived unit for electric charge, quantity of electricity ( C ).

static Unit 
FARAD
The derived unit for capacitance ( F ).

static Unit 
GRAM
The derived unit for mass quantities ( g ).

static Unit 
GRAY
The derived unit for absorbed dose, specific energy (imparted), kerma ( Gy ).

static Unit 
HENRY
The derived unit for inductance ( H ).

static Unit 
HERTZ
The derived unit for frequency ( Hz ).

static Unit 
JOULE
The derived unit for energy, work, quantity of heat ( J ).

static Unit 
KATAL
The derived unit for catalytic activity ( kat ). 
static BaseUnit 
KELVIN
The base unit for thermodynamic temperature quantities ( K ).

static BaseUnit 
KILOGRAM
The base unit for mass quantities ( kg ).

static Unit 
LUMEN
The derived unit for luminous flux ( lm ).

static Unit 
LUX
The derived unit for illuminance ( lx ).

static BaseUnit 
METER
The base unit for length quantities ( m ).

static BaseUnit 
MOLE
The base unit for amount of substance quantities ( mol ).

static Unit 
NEWTON
The derived unit for force ( N ).

static Unit 
OHM
The derived unit for electric resistance ( Ω ).

static Unit 
PASCAL
The derived unit for pressure, stress ( Pa ).

static Unit 
RADIAN
The unit for plane angle quantities ( rad ).

static BaseUnit 
SECOND
The base unit for duration quantities ( s ).

static Unit 
SIEMENS
The derived unit for electric conductance ( S ).

static Unit 
SIEVERT
The derived unit for dose equivalent ( Sv ).

static Unit 
STERADIAN
The unit for solid angle quantities ( sr ).

static Unit 
TESLA
The derived unit for magnetic flux density ( T ).

static Unit 
VOLT
The derived unit for electric potential difference, electromotive force ( V ).

static Unit 
WATT
The derived unit for power, radiant, flux ( W ).

static Unit 
WEBER
The derived unit for magnetic flux ( Wb ).

Method Summary  
static Unit 
ATTO(Unit unit)
Returns the specified unit multiplied by the factor 10^{18} 
static Unit 
CENTI(Unit unit)
Returns the specified unit multiplied by the factor 10^{2} 
static Unit 
DECI(Unit unit)
Returns the specified unit multiplied by the factor 10^{1} 
static Unit 
DEKA(Unit unit)
Returns the specified unit multiplied by the factor 10^{1} 
static Unit 
EXA(Unit unit)
Returns the specified unit multiplied by the factor 10^{18} 
static Unit 
FEMTO(Unit unit)
Returns the specified unit multiplied by the factor 10^{15} 
static Unit 
GIGA(Unit unit)
Returns the specified unit multiplied by the factor 10^{9} 
static Unit 
HECTO(Unit unit)
Returns the specified unit multiplied by the factor 10^{2} 
static Unit 
KILO(Unit unit)
Returns the specified unit multiplied by the factor 10^{3} 
static Unit 
MEGA(Unit unit)
Returns the specified unit multiplied by the factor 10^{6} 
static Unit 
MICRO(Unit unit)
Returns the specified unit multiplied by the factor 10^{6} 
static Unit 
MILLI(Unit unit)
Returns the specified unit multiplied by the factor 10^{3} 
static Unit 
NANO(Unit unit)
Returns the specified unit multiplied by the factor 10^{9} 
static Unit 
PETA(Unit unit)
Returns the specified unit multiplied by the factor 10^{15} 
static Unit 
PICO(Unit unit)
Returns the specified unit multiplied by the factor 10^{12} 
static Unit 
TERA(Unit unit)
Returns the specified unit multiplied by the factor 10^{12} 
static Unit 
YOCTO(Unit unit)
Returns the specified unit multiplied by the factor 10^{24} 
static Unit 
YOTTA(Unit unit)
Returns the specified unit multiplied by the factor 10^{24} 
static Unit 
ZEPTO(Unit unit)
Returns the specified unit multiplied by the factor 10^{21} 
static Unit 
ZETTA(Unit unit)
Returns the specified unit multiplied by the factor 10^{21} 
Methods inherited from class Object 
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
Field Detail 
public static final BaseUnit AMPERE
A
).
The Ampere is that constant current which, if maintained in two straight
parallel conductors of infinite length, of negligible circular
crosssection, and placed 1 metre apart in vacuum, would produce between
these conductors a force equal to 2 × 107 newton per metre of length.
It is named after the French physicist Andre Ampere (17751836).
public static final BaseUnit CANDELA
cd
).
The candela is the luminous intensity, in a given direction,
of a source that emits monochromatic radiation of frequency
540 × 1012 hertz and that has a radiant intensity in that
direction of 1/683 watt per steradian
public static final BaseUnit KELVIN
K
).
The kelvin is the 1/273.16th of the thermodynamic temperature of the
triple point of water. It is named after the Scottish mathematician and
physicist William Thomson 1st Lord Kelvin (18241907)
public static final BaseUnit KILOGRAM
kg
).
It is the only SI unit with a prefix as part of its name and symbol.
The kilogram is equal to the mass of an international prototype in the
form of a platinumiridium cylinder kept at Sevres in France.
GRAM
public static final BaseUnit METER
m
).
One meter was redefined in 1983 as the distance traveled by light in
a vacuum in 1/299,792,458 of a second.
public static final BaseUnit MOLE
mol
).
The mole is the amount of substance of a system which contains as many
elementary entities as there are atoms in 0.012 kilogram of carbon 12.
public static final BaseUnit SECOND
s
).
It is defined as the duration of 9,192,631,770 cycles of radiation
corresponding to the transition between two hyperfine levels of
the ground state of cesium (1967 Standard).
public static final Unit GRAM
g
).
The base unit for mass quantity is KILOGRAM
.
public static final Unit RADIAN
rad
).
One radian is the angle between two radii of a circle such that the
length of the arc between them is equal to the radius.
public static final Unit STERADIAN
sr
).
One steradian is the solid angle subtended at the center of a sphere by
an area on the surface of the sphere that is equal to the radius squared.
The total solid angle of a sphere is 4*Pi steradians.
public static final Unit BIT
bit
).
public static final Unit HERTZ
Hz
).
A unit of frequency equal to one cycle per second.
After Heinrich Rudolf Hertz (18571894), German physicist who was the
first to produce radio waves artificially.
public static final Unit NEWTON
N
).
One newton is the force required to give a mass of 1 kilogram an Force
of 1 metre per second per second. It is named after the English
mathematician and physicist Sir Isaac Newton (16421727).
public static final Unit PASCAL
Pa
).
One pascal is equal to one newton per square meter. It is named after
the French philosopher and mathematician Blaise Pascal (16231662).
public static final Unit JOULE
J
).
One joule is the amount of work done when an applied force of 1 newton
moves through a distance of 1 metre in the direction of the force.
It is named after the English physicist James Prescott Joule (18181889).
public static final Unit WATT
W
).
One watt is equal to one joule per second. It is named after the British
scientist James Watt (17361819).
public static final Unit COULOMB
C
).
One Coulomb is equal to the quantity of charge transferred in one second
by a steady current of one ampere. It is named after the French physicist
Charles Augustin de Coulomb (17361806).
public static final Unit VOLT
V
).
One Volt is equal to the difference of electric potential between two
points on a conducting wire carrying a constant current of one ampere
when the power dissipated between the points is one watt. It is named
after the Italian physicist Count Alessandro Volta (17451827).
public static final Unit FARAD
F
).
One Farad is equal to the capacitance of a capacitor having an equal
and opposite charge of 1 coulomb on each plate and a potential difference
of 1 volt between the plates. It is named after the British physicist
and chemist Michael Faraday (17911867).
public static final Unit OHM
Ω
).
One Ohm is equal to the resistance of a conductor in which a current of
one ampere is produced by a potential of one volt across its terminals.
It is named after the German physicist Georg Simon Ohm (17891854).
public static final Unit SIEMENS
S
).
One Siemens is equal to one ampere per volt. It is named after
the German engineer Ernst Werner von Siemens (18161892).
public static final Unit WEBER
Wb
).
One Weber is equal to the magnetic flux that in linking a circuit of one
turn produces in it an electromotive force of one volt as it is uniformly
reduced to zero within one second. It is named after the German physicist
Wilhelm Eduard Weber (18041891).
public static final Unit TESLA
T
).
One Tesla is equal equal to one weber per square meter. It is named
after the Serbianborn American electrical engineer and physicist
Nikola Tesla (18561943).
public static final Unit HENRY
H
).
One Henry is equal to the inductance for which an induced electromotive
force of one volt is produced when the current is varied at the rate of
one ampere per second. It is named after the American physicist
Joseph Henry (17911878).
public static final Unit CELSIUS
°C
).
This is a unit of temperature such as the freezing point of water
(at one atmosphere of pressure) is 0 °C, while the boiling point is
100 °C.
public static final Unit LUMEN
lm
).
One Lumen is equal to the amount of light given out through a solid angle
by a source of one candela intensity radiating equally in all directions.
public static final Unit LUX
lx
).
One Lux is equal to one lumen per square meter.
public static final Unit BECQUEREL
Bq
).
One becquerel is the radiation caused by one disintegration per second.
It is named after the French physicist, AntoineHenri Becquerel
(18521908).
public static final Unit GRAY
Gy
).
One gray is equal to the dose of one joule of energy absorbed per one
kilogram of matter. It is named after the British physician
L. H. Gray (19051965).
public static final Unit SIEVERT
Sv
).
One Sievert is equal is equal to the actual dose, in grays, multiplied
by a "quality factor" which is larger for more dangerous forms of
radiation. It is named after the Swedish physicist Rolf Sievert
(18981966).
public static final Unit KATAL
kat
).
Method Detail 
public static Unit YOTTA(Unit unit)
10^{24}
unit
 any unit.
unit.multiply(1e24)
.public static Unit ZETTA(Unit unit)
10^{21}
unit
 any unit.
unit.multiply(1e21)
.public static Unit EXA(Unit unit)
10^{18}
unit
 any unit.
unit.multiply(1e18)
.public static Unit PETA(Unit unit)
10^{15}
unit
 any unit.
unit.multiply(1e15)
.public static Unit TERA(Unit unit)
10^{12}
unit
 any unit.
unit.multiply(1e12)
.public static Unit GIGA(Unit unit)
10^{9}
unit
 any unit.
unit.multiply(1e9)
.public static Unit MEGA(Unit unit)
10^{6}
unit
 any unit.
unit.multiply(1e6)
.public static Unit KILO(Unit unit)
10^{3}
unit
 any unit.
unit.multiply(1e3)
.public static Unit HECTO(Unit unit)
10^{2}
unit
 any unit.
unit.multiply(1e2)
.public static Unit DEKA(Unit unit)
10^{1}
unit
 any unit.
unit.multiply(1e1)
.public static Unit DECI(Unit unit)
10^{1}
unit
 any unit.
unit.multiply(1e1)
.public static Unit CENTI(Unit unit)
10^{2}
unit
 any unit.
unit.multiply(1e2)
.public static Unit MILLI(Unit unit)
10^{3}
unit
 any unit.
unit.multiply(1e3)
.public static Unit MICRO(Unit unit)
10^{6}
unit
 any unit.
unit.multiply(1e6)
.public static Unit NANO(Unit unit)
10^{9}
unit
 any unit.
unit.multiply(1e9)
.public static Unit PICO(Unit unit)
10^{12}
unit
 any unit.
unit.multiply(1e12)
.public static Unit FEMTO(Unit unit)
10^{15}
unit
 any unit.
unit.multiply(1e15)
.public static Unit ATTO(Unit unit)
10^{18}
unit
 any unit.
unit.multiply(1e18)
.public static Unit ZEPTO(Unit unit)
10^{21}
unit
 any unit.
unit.multiply(1e21)
.public static Unit YOCTO(Unit unit)
10^{24}
unit
 any unit.
unit.multiply(1e24)
.

Java Units API Build 20040206 

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Symbols, terms and definitions  JSR108 project 