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.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 BigDecimal class. |
RoundingMode | Specifies a rounding policy for numerical operations capable of discarding precision. |
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https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/math/package-summary.html