java.mathfor business mathematical classes.
Provides IEEE-754r variants of NumberUtils methods.
Provides extra functionality for Java Number classes.
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 thread-safe.
Although Commons Math also exists, some basic mathematical functions are contained within Lang.
These include classes to a
org.apache.commons.lang3.math.Fraction class, various utilities for random numbers, and the flagship class,
org.apache.commons.lang3.math.NumberUtils which contains a handful of classic number functions.
There are two aspects of this package that should be highlighted.
The first is
org.apache.commons.lang3.math.NumberUtils#createNumber(String), a method which does its best to convert a String into a
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
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