object BigDecimal extends Serializable
- Source
- BigDecimal.scala
- Version
1.1
- Since
2.7
- Alphabetic
- By Inheritance
- BigDecimal
- Serializable
- Serializable
- AnyRef
- Any
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Value Members
-
def
apply(bd: java.math.BigDecimal): BigDecimal
Constructs a
BigDecimal
from ajava.math.BigDecimal
. -
def
apply(unscaledVal: BigInt, scale: Int, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose unscaled value is equal to that of the specifiedBigInt
value.Constructs a
BigDecimal
whose unscaled value is equal to that of the specifiedBigInt
value.- unscaledVal
the specified
BigInt
value- scale
the scale
- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(unscaledVal: BigInt, scale: Int): BigDecimal
Constructs a
BigDecimal
whose unscaled value is equal to that of the specifiedBigInt
value.Constructs a
BigDecimal
whose unscaled value is equal to that of the specifiedBigInt
value.- unscaledVal
the specified
BigInt
value- scale
the scale
- returns
the constructed
BigDecimal
-
def
apply(x: BigInt, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specifiedBigInt
value, rounding if necessary.Constructs a
BigDecimal
whose value is equal to that of the specifiedBigInt
value, rounding if necessary.- x
the specified
BigInt
value- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(x: BigInt): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specifiedBigInt
value.Constructs a
BigDecimal
whose value is equal to that of the specifiedBigInt
value.- x
the specified
BigInt
value- returns
the constructed
BigDecimal
-
def
apply(x: String, mc: MathContext): BigDecimal
Translates the decimal String representation of a
BigDecimal
into aBigDecimal
, rounding if necessary. -
def
apply(x: String): BigDecimal
Translates the decimal String representation of a
BigDecimal
into aBigDecimal
. -
def
apply(x: Array[Char], mc: MathContext): BigDecimal
Translates a character array representation of a
BigDecimal
into aBigDecimal
, rounding if necessary. -
def
apply(x: Array[Char]): BigDecimal
Translates a character array representation of a
BigDecimal
into aBigDecimal
. -
def
apply(d: Double, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specified double value, but rounded if necessary.Constructs a
BigDecimal
whose value is equal to that of the specified double value, but rounded if necessary. Equivalent toBigDecimal.decimal
.- d
the specified
Double
value- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(d: Double): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specified double value.Constructs a
BigDecimal
whose value is equal to that of the specified double value. Equivalent toBigDecimal.decimal
.- d
the specified
Double
value- returns
the constructed
BigDecimal
-
def
apply(unscaledVal: Long, scale: Int, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose unscaled value is equal to that of the specified long value, but rounded if necessary.Constructs a
BigDecimal
whose unscaled value is equal to that of the specified long value, but rounded if necessary.- unscaledVal
the value
- scale
the scale
- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(unscaledVal: Long, scale: Int): BigDecimal
Constructs a
BigDecimal
whose unscaled value is equal to that of the specified long value.Constructs a
BigDecimal
whose unscaled value is equal to that of the specified long value.- unscaledVal
the value
- scale
the scale
- returns
the constructed
BigDecimal
-
def
apply(l: Long, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specified long value, but rounded if necessary.Constructs a
BigDecimal
whose value is equal to that of the specified long value, but rounded if necessary.- l
the specified long value
- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(l: Long): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specified long value.Constructs a
BigDecimal
whose value is equal to that of the specified long value.- l
the specified long value
- returns
the constructed
BigDecimal
-
def
apply(i: Int, mc: MathContext): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specifiedInteger
value, rounding if necessary.Constructs a
BigDecimal
whose value is equal to that of the specifiedInteger
value, rounding if necessary.- i
the specified integer value
- mc
the precision and rounding mode for creation of this value and future operations on it
- returns
the constructed
BigDecimal
-
def
apply(i: Int): BigDecimal
Constructs a
BigDecimal
whose value is equal to that of the specifiedInteger
value.Constructs a
BigDecimal
whose value is equal to that of the specifiedInteger
value.- i
the specified integer value
- returns
the constructed
BigDecimal
-
def
binary(d: Double): BigDecimal
Constructs a
BigDecimal
by expanding the binary fraction contained byDouble
valued
into a decimal representation.Constructs a
BigDecimal
by expanding the binary fraction contained byDouble
valued
into a decimal representation. Note: this also works correctly on convertedFloat
s. -
def
binary(d: Double, mc: MathContext): BigDecimal
Constructs a
BigDecimal
by expanding the binary fraction contained byDouble
valued
into a decimal representation, rounding if necessary.Constructs a
BigDecimal
by expanding the binary fraction contained byDouble
valued
into a decimal representation, rounding if necessary. When aFloat
is converted to aDouble
, the binary fraction is preserved, so this method also works for convertedFloat
s. -
def
decimal(bd: java.math.BigDecimal, mc: MathContext): BigDecimal
Constructs a
BigDecimal
using ajava.math.BigDecimal
, rounding if necessary. -
def
decimal(l: Long): BigDecimal
Constructs a
BigDecimal
from aLong
.Constructs a
BigDecimal
from aLong
. This is identical toBigDecimal(l)
. -
def
decimal(l: Long, mc: MathContext): BigDecimal
Constructs a
BigDecimal
from aLong
, rounding if necessary.Constructs a
BigDecimal
from aLong
, rounding if necessary. This is identical toBigDecimal(l, mc)
. -
def
decimal(f: Float): BigDecimal
Constructs a
BigDecimal
using the decimal text representation ofFloat
valuef
.Constructs a
BigDecimal
using the decimal text representation ofFloat
valuef
. Note thatBigDecimal.decimal(0.1f) != 0.1f
since equality agrees with theDouble
representation, and0.1 != 0.1f
. -
def
decimal(f: Float, mc: MathContext): BigDecimal
Constructs a
BigDecimal
using the decimal text representation ofFloat
valuef
, rounding if necessary.Constructs a
BigDecimal
using the decimal text representation ofFloat
valuef
, rounding if necessary. Note thatBigDecimal.decimal(0.1f) != 0.1f
since equality agrees with theDouble
representation, and0.1 != 0.1f
. -
def
decimal(d: Double): BigDecimal
Constructs a
BigDecimal
using the decimal text representation ofDouble
valued
. -
def
decimal(d: Double, mc: MathContext): BigDecimal
Constructs a
BigDecimal
using the decimal text representation ofDouble
valued
, rounding if necessary. - val defaultMathContext: MathContext
-
implicit
def
double2bigDecimal(d: Double): BigDecimal
Implicit conversion from
Double
toBigDecimal
. -
def
exact(cs: Array[Char]): BigDecimal
Constructs a
BigDecimal
that exactly represents the number specified in base 10 in a character array. -
def
exact(s: String): BigDecimal
Constructs a
BigDecimal
that exactly represents the number specified in aString
. -
def
exact(l: Long): BigDecimal
Constructs a
BigDecimal
that exactly represents aLong
.Constructs a
BigDecimal
that exactly represents aLong
. Note that all creation methods forBigDecimal
that do not take aMathContext
represent aLong
; this is equivalent toapply
,valueOf
, etc.. -
def
exact(bi: BigInt): BigDecimal
Constructs a
BigDecimal
that exactly represents aBigInt
. -
def
exact(d: Double): BigDecimal
Constructs a
BigDecimal
by fully expanding the binary fraction contained byDouble
valued
, adjusting the precision as necessary.Constructs a
BigDecimal
by fully expanding the binary fraction contained byDouble
valued
, adjusting the precision as necessary. Note: this works correctly on convertedFloat
s also. -
def
exact(repr: java.math.BigDecimal): BigDecimal
Constructs a
BigDecimal
from ajava.math.BigDecimal
.Constructs a
BigDecimal
from ajava.math.BigDecimal
. The precision is the default forBigDecimal
or enough to represent thejava.math.BigDecimal
exactly, whichever is greater. -
implicit
def
int2bigDecimal(i: Int): BigDecimal
Implicit conversion from
Int
toBigDecimal
. -
implicit
def
javaBigDecimal2bigDecimal(x: java.math.BigDecimal): BigDecimal
Implicit conversion from
java.math.BigDecimal
toscala.BigDecimal
. -
implicit
def
long2bigDecimal(l: Long): BigDecimal
Implicit conversion from
Long
toBigDecimal
. -
def
valueOf(x: Long): BigDecimal
Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor.Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor.- x
the specified
Long
value- returns
the constructed
BigDecimal
-
def
valueOf(d: Double): BigDecimal
Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor.Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor. Equivalent toBigDecimal.decimal
.- d
the specified double value
- returns
the constructed
BigDecimal
- object RoundingMode extends Enumeration
Deprecated Value Members
-
def
apply(bd: java.math.BigDecimal, mc: MathContext): BigDecimal
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) This method appears to round a java.math.BigDecimal but actually doesn't. Use new BigDecimal(bd, mc) instead for no rounding, or BigDecimal.decimal(bd, mc) for rounding.
-
def
apply(x: Float, mc: MathContext): BigDecimal
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) The default conversion from Float may not do what you want. Use BigDecimal.decimal for a String representation, or explicitly convert the Float with .toDouble.
-
def
apply(x: Float): BigDecimal
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) The default conversion from Float may not do what you want. Use BigDecimal.decimal for a String representation, or explicitly convert the Float with .toDouble.
-
def
valueOf(f: Float, mc: MathContext): BigDecimal
Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor.Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor. This is unlikely to do what you want; usevalueOf(f.toDouble)
ordecimal(f)
instead.- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) Float arguments to valueOf may not do what you wish. Use decimal or valueOf(f.toDouble).
-
def
valueOf(f: Float): BigDecimal
Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor.Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor. This is unlikely to do what you want; usevalueOf(f.toDouble)
ordecimal(f)
instead.- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) Float arguments to valueOf may not do what you wish. Use decimal or valueOf(f.toDouble).
-
def
valueOf(d: Double, mc: MathContext): BigDecimal
Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor, specifying aMathContext
that is used for computations but isn't used for rounding.Constructs a
BigDecimal
using the java BigDecimal static valueOf constructor, specifying aMathContext
that is used for computations but isn't used for rounding. UseBigDecimal.decimal
to useMathContext
for rounding, orBigDecimal(java.math.BigDecimal.valueOf(d), mc)
for no rounding.- d
the specified double value
- mc
the
MathContext
used for future computations- returns
the constructed
BigDecimal
- Annotations
- @deprecated
- Deprecated
(Since version 2.11.0) MathContext is not applied to Doubles in valueOf. Use BigDecimal.decimal to use rounding, or java.math.BigDecimal.valueOf to avoid it.
This is the documentation for the Scala standard library.
Package structure
The scala package contains core types like
Int
,Float
,Array
orOption
which are accessible in all Scala compilation units without explicit qualification or imports.Notable packages include:
scala.collection
and its sub-packages contain Scala's collections frameworkscala.collection.immutable
- Immutable, sequential data-structures such asVector
,List
,Range
,HashMap
orHashSet
scala.collection.mutable
- Mutable, sequential data-structures such asArrayBuffer
,StringBuilder
,HashMap
orHashSet
scala.collection.concurrent
- Mutable, concurrent data-structures such asTrieMap
scala.collection.parallel.immutable
- Immutable, parallel data-structures such asParVector
,ParRange
,ParHashMap
orParHashSet
scala.collection.parallel.mutable
- Mutable, parallel data-structures such asParArray
,ParHashMap
,ParTrieMap
orParHashSet
scala.concurrent
- Primitives for concurrent programming such asFutures
andPromises
scala.io
- Input and output operationsscala.math
- Basic math functions and additional numeric types likeBigInt
andBigDecimal
scala.sys
- Interaction with other processes and the operating systemscala.util.matching
- Regular expressionsOther packages exist. See the complete list on the right.
Additional parts of the standard library are shipped as separate libraries. These include:
scala.reflect
- Scala's reflection API (scala-reflect.jar)scala.xml
- XML parsing, manipulation, and serialization (scala-xml.jar)scala.swing
- A convenient wrapper around Java's GUI framework called Swing (scala-swing.jar)scala.util.parsing
- Parser combinators, including an example implementation of a JSON parser (scala-parser-combinators.jar)Automatic imports
Identifiers in the scala package and the
scala.Predef
object are always in scope by default.Some of these identifiers are type aliases provided as shortcuts to commonly used classes. For example,
List
is an alias forscala.collection.immutable.List
.Other aliases refer to classes provided by the underlying platform. For example, on the JVM,
String
is an alias forjava.lang.String
.