Java Uses of Class java.math.MathContext（JDK11）

134 阅读 0 评论 0 点赞

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 MathContext`	MathContext.`DECIMAL128`	A `MathContext` object with a precision setting matching the IEEE 754R Decimal128 format, 34 digits, and a rounding mode of `HALF_EVEN`, the IEEE 754R default.
`static MathContext`	MathContext.`DECIMAL32`	A `MathContext` object with a precision setting matching the IEEE 754R Decimal32 format, 7 digits, and a rounding mode of `HALF_EVEN`, the IEEE 754R default.
`static MathContext`	MathContext.`DECIMAL64`	A `MathContext` object with a precision setting matching the IEEE 754R Decimal64 format, 16 digits, and a rounding mode of `HALF_EVEN`, the IEEE 754R default.
`static 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
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.

微信小程序

微信扫一扫体验

微信公众账号

微信扫一扫加关注

发表
评论返回
顶部