Package org.apache.commons.lang3.math
Extends java.math
for business mathematical classes.
This package is intended for business mathematical use, not scientific use.
See Commons Math for a more complete set of mathematical classes.
These classes are immutable, and therefore threadsafe.
Although Commons Math also exists, some basic mathematical functions are contained within Lang.
These include classes to a Fraction
class, various utilities for random numbers, and the flagship class, NumberUtils
which contains a handful of classic number functions.
There are two aspects of this package that should be highlighted.
The first is NumberUtils.createNumber(String)
, a method which does its best to convert a String into a Number
object.
You have no idea what type of Number it will return, so you should call the relevant xxxValue
method when you reach the point of needing a number.
NumberUtils also has a related NumberUtils.isCreatable(String)
method.
 Since:
 2.0

Class Summary Class Description Fraction Fraction
is aNumber
implementation that stores fractions accurately.IEEE754rUtils Provides IEEE754r variants of NumberUtils methods.NumberUtils Provides extra functionality for Java Number classes.