Module java.base
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
-
ClassDescriptionImmutable, arbitrary-precision signed decimal numbers.Immutable arbitrary-precision integers.Immutable objects which encapsulate the context settings which describe certain rules for numerical operators, such as those implemented by the
BigDecimal
class. -
EnumDescriptionSpecifies a rounding behavior for numerical operations capable of discarding precision.