object BigDecimal extends java.io.Serializable
- Source
- BigDecimal.scala
- Since
2.7
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- 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
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.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.collection.parallel
- Parallel collections (scala-parallel-collections.jar)scala.util.parsing
- Parser combinators (scala-parser-combinators.jar)scala.swing
- A convenient wrapper around Java's GUI framework called Swing (scala-swing.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
.