java.math
Classes
| 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  | 
Enums
| RoundingMode | Specifies a rounding policy for numerical operations capable of discarding precision. | 
