Arbitrary Precision Math - JDK 5 Documentation v1.4.1, Java 2 SDK 英文文档

Arbitrary-Precision Math

The java.math package supports arbitrary-precision math. The package consists of two classes:

BigInteger numbers are immutable, arbitrary-precision integers. The BigInteger class provides analogs for all Java language primitive integer operators. The class also supports modular arithmetic, GCD calculation, prime number generation and testing, single-bit manipulation, and various other operations.
BigDecimal numbers are immutable, arbitrary-precision signed decimal numbers, suitable for monetary calculations. The BigDecimal class provides operations for basic arithmetic, scale manipulation, comparison, format conversion, and hashing.

Enhancements

Enhancements to java.math in version 1.4 of the Java^TM 2 SDK.
Enhancements to java.math in version 1.3 of the Java 2 SDK.

API Specification

java.math Package

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