Package java.math
Provides classes for performing arbitrary-precision integer arithmetic (BigInteger
) and arbitrary-precision decimal arithmetic (BigDecimal
). BigInteger
is analogous to the primitive integer types except that it provides arbitrary precision, hence operations on BigInteger
s do not overflow or lose precision. In addition to standard arithmetic operations, BigInteger
provides modular arithmetic, GCD calculation, primality testing, prime generation, bit manipulation, and a few other miscellaneous operations. BigDecimal
provides arbitrary-precision signed decimal numbers suitable for currency calculations and the like.
BigDecimal
gives the user complete control over rounding behavior, allowing the user to choose from a comprehensive set of eight rounding modes.
- Since:
- 1.1
Class | Description |
---|---|
BigDecimal | Immutable, arbitrary-precision signed decimal numbers. |
BigInteger | Immutable arbitrary-precision integers. |
MathContext | Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the |
Enum | Description |
---|---|
RoundingMode | Specifies a rounding behavior for numerical operations capable of discarding precision. |