Provides arbitrary-precision integers and decimals.
| BigDecimal | This class represents immutable integer numbers of arbitrary length. |
| BigInteger | This class represents immutable integer numbers of arbitrary length. |
| MathContext | Immutable objects describing settings such as rounding mode and digit
precision for the numerical operations provided by class BigDecimal. |
| RoundingMode | Specifies the rounding behavior for operations whose results cannot be represented exactly. |
