Package org.apache.commons.lang3.math

Extends java.math for business mathematical classes.

See: Description

Class Summary

Class	Description
Fraction	Fraction is a Number implementation that stores fractions accurately.
IEEE754rUtils	Provides IEEE-754r variants of NumberUtils methods.
NumberUtils	Provides extra functionality for Java Number classes.

Package org.apache.commons.lang3.math Description

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 thread-safe.

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