| Package | Description |
|---|---|
| java.math |
Provides classes for performing arbitrary-precision integer
arithmetic (
BigInteger) and arbitrary-precision decimal
arithmetic (BigDecimal). |
| Modifier and Type | Field and 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. |
| Modifier and Type | Method and 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.subtract (BigDecimal subtrahend,
MathContext mc)
Returns a
BigDecimal whose value is (this - subtrahend),
with rounding according to the context settings. |
| Constructor and Description |
|---|
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. |
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.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.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.BigDecimal(String) constructor, with rounding
according to the context settings. |
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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