org.checkerframework.checker.units.qual

Enum Prefix

java.lang.Object

java.lang.Enum<Prefix>

org.checkerframework.checker.units.qual.Prefix

All Implemented Interfaces:

Serializable, Comparable<Prefix>

public enum Prefix
extends Enum<Prefix>

SI prefixes.

From http://en.wikipedia.org/wiki/SI_prefix:

 yotta   Y   1000^8     10^24    1000000000000000000000000   Septillion      Quadrillion     1991
 zetta   Z   1000^7     10^21    1000000000000000000000      Sextillion      Trilliard       1991
 exa     E   1000^6     10^18    1000000000000000000         Quintillion     Trillion        1975
 peta    P   1000^5     10^15    1000000000000000            Quadrillion     Billiard        1975
 tera    T   1000^4     10^12    1000000000000               Trillion        Billion         1960
 giga    G   1000^3     10^9     1000000000                  Billion         Milliard        1960
 mega    M   1000^2     10^6     1000000                     Million                         1960
 kilo    k   1000^1     10^3     1000                        Thousand                        1795
 hecto   h   1000^2/3   10^2     100                         Hundred                         1795
 deca    da  1000^1/3   10^1     10                          Ten                             1795
 1000^0     10^0     1                           One
 deci    d   1000^-1/3  10^-1    0.1                         Tenth                           1795
 centi   c   1000^-2/3  10^-2    0.01                        Hundredth                       1795
 milli   m   1000^-1    10^-3    0.001                       Thousandth                      1795
 micro   my  1000^-2    10^-6    0.000001                    Millionth                       1960
 nano    n   1000^-3    10^-9    0.000000001                 Billionth       Milliardth      1960
 pico    p   1000^-4    10^-12   0.000000000001              Trillionth      Billionth       1960
 femto   f   1000^-5    10^-15   0.000000000000001           Quadrillionth   Billiardth      1964
 atto    a   1000^-6    10^-18   0.000000000000000001        Quintillionth   Trillionth      1964
 zepto   z   1000^-7    10^-21   0.000000000000000000001     Sextillionth    Trilliardth     1991
 yocto   y   1000^-8    10^-24   0.000000000000000000000001  Septillionth    Quadrillionth   1991
 

See the Checker Framework Manual:

Units Checker

Enum Constant Summary

Enum Constants

Enum Constant and Description
atto 10^-18
centi 10^-2
deca 10^1
deci 10^-1
exa 10^18
femto 10^-15
giga 10^9
hecto 10^2
kilo 10^3
mega 10^6
micro 10^-6
milli 10^-3
nano 10^-9
one 10^0, or 1
peta 10^15
pico 10^-12
tera 10^12
yocto 10^-24
yotta 10^24
zepto 10^-21
zetta 10^21

Method Summary

Modifier and Type	Method and Description
static Prefix	valueOf(String name) Returns the enum constant of this type with the specified name.
static Prefix[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

yotta

public static final Prefix yotta

10^24

zetta

public static final Prefix zetta

10^21

exa

public static final Prefix exa

10^18

peta

public static final Prefix peta

10^15

tera

public static final Prefix tera

10^12

giga

public static final Prefix giga

10^9

mega

public static final Prefix mega

10^6

kilo

public static final Prefix kilo

10^3

hecto

public static final Prefix hecto

10^2

deca

public static final Prefix deca

10^1

one

public static final Prefix one

10^0, or 1

deci

public static final Prefix deci

10^-1

centi

public static final Prefix centi

10^-2

milli

public static final Prefix milli

10^-3

micro

public static final Prefix micro

10^-6

nano

public static final Prefix nano

10^-9

pico

public static final Prefix pico

10^-12

femto

public static final Prefix femto

10^-15

atto

public static final Prefix atto

10^-18

zepto

public static final Prefix zepto

10^-21

yocto

public static final Prefix yocto

10^-24

Method Detail

values

public static Prefix[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Prefix c : Prefix.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Prefix valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null