# Uses of Class
java.math.MathContext

Packages that use MathContext
Package
Description
java.math
Provides classes for performing arbitrary-precision integer arithmetic (`BigInteger`) and arbitrary-precision decimal arithmetic (`BigDecimal`).

## Uses of MathContext in java.math

Fields in java.math declared as MathContext
Modifier and Type
Field
Description
`static final MathContext`
MathContext.`DECIMAL128`
A `MathContext` object with a precision setting matching the precision of the IEEE 754-2019 decimal128 format, 34 digits, and a rounding mode of `HALF_EVEN`.
`static final MathContext`
MathContext.`DECIMAL32`
A `MathContext` object with a precision setting matching the precision of the IEEE 754-2019 decimal32 format, 7 digits, and a rounding mode of `HALF_EVEN`.
`static final MathContext`
MathContext.`DECIMAL64`
A `MathContext` object with a precision setting matching the precision of the IEEE 754-2019 decimal64 format, 16 digits, and a rounding mode of `HALF_EVEN`.
`static final MathContext`
MathContext.`UNLIMITED`
A `MathContext` object whose settings have the values required for unlimited precision arithmetic.
Methods in java.math with parameters of type MathContext
Modifier and Type
Method
Description
`BigDecimal`
BigDecimal.`abs(MathContext mc)`
Returns a `BigDecimal` whose value is the absolute value of this `BigDecimal`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`add(BigDecimal augend, MathContext mc)`
Returns a `BigDecimal` whose value is `(this + augend)`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`divide(BigDecimal divisor, MathContext mc)`
Returns a `BigDecimal` whose value is `(this / divisor)`, with rounding according to the context settings.
`BigDecimal[]`
BigDecimal.`divideAndRemainder(BigDecimal divisor, MathContext mc)`
Returns a two-element `BigDecimal` array containing the result of `divideToIntegralValue` followed by the result of `remainder` on the two operands calculated with rounding according to the context settings.
`BigDecimal`
BigDecimal.`divideToIntegralValue(BigDecimal divisor, MathContext mc)`
Returns a `BigDecimal` whose value is the integer part of `(this / divisor)`.
`BigDecimal`
BigDecimal.`multiply(BigDecimal multiplicand, MathContext mc)`
Returns a `BigDecimal` whose value is `(this × multiplicand)`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`negate(MathContext mc)`
Returns a `BigDecimal` whose value is `(-this)`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`plus(MathContext mc)`
Returns a `BigDecimal` whose value is `(+this)`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`pow(int n, MathContext mc)`
Returns a `BigDecimal` whose value is `(thisn)`.
`BigDecimal`
BigDecimal.`remainder(BigDecimal divisor, MathContext mc)`
Returns a `BigDecimal` whose value is `(this % divisor)`, with rounding according to the context settings.
`BigDecimal`
BigDecimal.`round(MathContext mc)`
Returns a `BigDecimal` rounded according to the `MathContext` settings.
`BigDecimal`
BigDecimal.`sqrt(MathContext mc)`
Returns an approximation to the square root of `this` with rounding according to the context settings.
`BigDecimal`
BigDecimal.`subtract(BigDecimal subtrahend, MathContext mc)`
Returns a `BigDecimal` whose value is `(this - subtrahend)`, with rounding according to the context settings.
Constructors in java.math with parameters of type MathContext
Modifier
Constructor
Description
``
`BigDecimal(char[] in, int offset, int len, MathContext mc)`
Translates a character array representation of a `BigDecimal` into a `BigDecimal`, accepting the same sequence of characters as the `BigDecimal(String)` constructor, while allowing a sub-array to be specified and with rounding according to the context settings.
``
`BigDecimal(char[] in, MathContext mc)`
Translates a character array representation of a `BigDecimal` into a `BigDecimal`, accepting the same sequence of characters as the `BigDecimal(String)` constructor and with rounding according to the context settings.
``
`BigDecimal(double val, MathContext mc)`
Translates a `double` into a `BigDecimal`, with rounding according to the context settings.
``
`BigDecimal(int val, MathContext mc)`
Translates an `int` into a `BigDecimal`, with rounding according to the context settings.
``
`BigDecimal(long val, MathContext mc)`
Translates a `long` into a `BigDecimal`, with rounding according to the context settings.
``
`BigDecimal(String val, MathContext mc)`
Translates the string representation of a `BigDecimal` into a `BigDecimal`, accepting the same strings as the `BigDecimal(String)` constructor, with rounding according to the context settings.
``
`BigDecimal(BigInteger unscaledVal, int scale, MathContext mc)`
Translates a `BigInteger` unscaled value and an `int` scale into a `BigDecimal`, with rounding according to the context settings.
``
`BigDecimal(BigInteger val, MathContext mc)`
Translates a `BigInteger` into a `BigDecimal` rounding according to the context settings.