Fraction is a Number implementation that stores fractions accurately.
Fraction
Number
This class is immutable, and interoperable with most methods that accept a Number.
RandomUtils is a wrapper that supports all possible java.util.Random methods via the java.lang.Math.random method and its system-wide Random object. author: Gary D.
RandomUtils
Random
Range represents a range of numbers of the same type.
Range
Specific subclasses hold the range values as different types.
Tests the base methods in the org.apache.commons.lang.math.Range class.