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Package java.math

Provides classes for performing arbitrary-precision integer arithmetic (BigInteger) and arbitrary-precision decimal arithmetic (BigDecimal).

See: Description

  • Class Summary 
    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.
  • Enum Summary 
    Enum Description
    RoundingMode
    Specifies a rounding behavior for numerical operations capable of discarding precision.

Package java.math Description

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 BigIntegers 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:
JDK1.1


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