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Math Package

A new package, java.math, was added to the JDK 1.1 release. The math package contains two new classes: BigInteger and BigDecimal.

BigInteger numbers are immutable arbitrary-precision integers. They provide analogs to all of Java's primitive integer operators and all relevant static methods from the java.lang.Math class. Additionally, BigInteger numbers provide operations for modular arithmetic, GCD calculation, primality testing, prime generation, single-bit manipulation, and a few other odds and ends.

BigDecimal numbers are immutable, arbitrary-precision signed decimal numbers, suitable for monetary calculations. BigDecimal numbers provide operations for basic arithmetic, scale manipulation, comparison, format conversion, and hashing.

Where to Find Documentation

• Currently, the only documentation available on these classes is the javadoc-generated API documentation: java.math.BigInteger, and java.math.BigDecimal

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