final class BigDecimal extends ScalaNumber with ScalaNumericConversions with Serializable with Ordered[BigDecimal]
BigDecimal
represents decimal floating-point numbers of arbitrary precision.
By default, the precision approximately matches that of IEEE 128-bit floating
point numbers (34 decimal digits, HALF_EVEN
rounding mode). Within the range
of IEEE binary128 numbers, BigDecimal
will agree with BigInt
for both
equality and hash codes (and will agree with primitive types as well). Beyond
that range--numbers with more than 4934 digits when written out in full--the
hashCode
of BigInt
and BigDecimal
is allowed to diverge due to difficulty
in efficiently computing both the decimal representation in BigDecimal
and the
binary representation in BigInt
.
When creating a BigDecimal
from a Double
or Float
, care must be taken as
the binary fraction representation of Double
and Float
does not easily
convert into a decimal representation. Three explicit schemes are available
for conversion. BigDecimal.decimal
will convert the floating-point number
to a decimal text representation, and build a BigDecimal
based on that.
BigDecimal.binary
will expand the binary fraction to the requested or default
precision. BigDecimal.exact
will expand the binary fraction to the
full number of digits, thus producing the exact decimal value corresponding to
the binary fraction of that floating-point number. BigDecimal
equality
matches the decimal expansion of Double
: BigDecimal.decimal(0.1) == 0.1
.
Note that since 0.1f != 0.1
, the same is not true for Float
. Instead,
0.1f == BigDecimal.decimal((0.1f).toDouble)
.
To test whether a BigDecimal
number can be converted to a Double
or
Float
and then back without loss of information by using one of these
methods, test with isDecimalDouble
, isBinaryDouble
, or isExactDouble
or the corresponding Float
versions. Note that BigInt
's isValidDouble
will agree with isExactDouble
, not the isDecimalDouble
used by default.
BigDecimal
uses the decimal representation of binary floating-point numbers
to determine equality and hash codes. This yields different answers than
conversion between Long
and Double
values, where the exact form is used.
As always, since floating-point is a lossy representation, it is advisable to
take care when assuming identity will be maintained across multiple conversions.
BigDecimal
maintains a MathContext
that determines the rounding that
is applied to certain calculations. In most cases, the value of the
BigDecimal
is also rounded to the precision specified by the MathContext
.
To create a BigDecimal
with a different precision than its MathContext
,
use new BigDecimal(new java.math.BigDecimal(...), mc)
. Rounding will
be applied on those mathematical operations that can dramatically change the
number of digits in a full representation, namely multiplication, division,
and powers. The left-hand argument's MathContext
always determines the
degree of rounding, if any, and is the one propagated through arithmetic
operations that do not apply rounding themselves.
- Source
- BigDecimal.scala
- Alphabetic
- By Inheritance
- BigDecimal
- Ordered
- Comparable
- ScalaNumericConversions
- ScalaNumericAnyConversions
- ScalaNumber
- Number
- Serializable
- AnyRef
- Any
- by orderingToOrdered
- by any2stringadd
- by StringFormat
- by Ensuring
- by ArrowAssoc
- Hide All
- Show All
- Public
- Protected
Instance Constructors
- new BigDecimal(bigDecimal: java.math.BigDecimal)
- new BigDecimal(bigDecimal: java.math.BigDecimal, mc: MathContext)
Value Members
- final def !=(arg0: Any): Boolean
Test two objects for inequality.
Test two objects for inequality.
- returns
true
if !(this == that), false otherwise.
- Definition Classes
- AnyRef → Any
- final def ##: Int
Equivalent to
x.hashCode
except for boxed numeric types andnull
.Equivalent to
x.hashCode
except for boxed numeric types andnull
. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. Fornull
returns a hashcode wherenull.hashCode
throws aNullPointerException
.- returns
a hash value consistent with ==
- Definition Classes
- AnyRef → Any
- def %(that: BigDecimal): BigDecimal
Remainder after dividing this by that.
- def *(that: BigDecimal): BigDecimal
Multiplication of BigDecimals
- def +(that: BigDecimal): BigDecimal
Addition of BigDecimals
- def -(that: BigDecimal): BigDecimal
Subtraction of BigDecimals
- def ->[B](y: B): (BigDecimal, B)
- Implicit
- This member is added by an implicit conversion from BigDecimal toArrowAssoc[BigDecimal] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @inline()
- def /(that: BigDecimal): BigDecimal
Division of BigDecimals
- def /%(that: BigDecimal): (BigDecimal, BigDecimal)
Division and Remainder - returns tuple containing the result of divideToIntegralValue and the remainder.
Division and Remainder - returns tuple containing the result of divideToIntegralValue and the remainder. The computation is exact: no rounding is applied.
- def <(that: BigDecimal): Boolean
Returns true if
this
is less thanthat
Returns true if
this
is less thanthat
- Definition Classes
- Ordered
- def <=(that: BigDecimal): Boolean
Returns true if
this
is less than or equal tothat
.Returns true if
this
is less than or equal tothat
.- Definition Classes
- Ordered
- final def ==(arg0: Any): Boolean
The expression
x == that
is equivalent toif (x eq null) that eq null else x.equals(that)
.The expression
x == that
is equivalent toif (x eq null) that eq null else x.equals(that)
.- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- AnyRef → Any
- def >(that: BigDecimal): Boolean
Returns true if
this
is greater thanthat
.Returns true if
this
is greater thanthat
.- Definition Classes
- Ordered
- def >=(that: BigDecimal): Boolean
Returns true if
this
is greater than or equal tothat
.Returns true if
this
is greater than or equal tothat
.- Definition Classes
- Ordered
- def abs: BigDecimal
Returns the absolute value of this BigDecimal
- def apply(mc: MathContext): BigDecimal
Returns a new BigDecimal based on the supplied MathContext, rounded as needed.
- final def asInstanceOf[T0]: T0
Cast the receiver object to be of type
T0
.Cast the receiver object to be of type
T0
.Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression
1.asInstanceOf[String]
will throw aClassCastException
at runtime, while the expressionList(1).asInstanceOf[List[String]]
will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.- returns
the receiver object.
- Definition Classes
- Any
- Exceptions thrown
ClassCastException
if the receiver object is not an instance of the erasure of typeT0
.
- val bigDecimal: java.math.BigDecimal
- def byteValue: Byte
Converts this BigDecimal to a Byte.
Converts this BigDecimal to a Byte. If the BigDecimal is too big to fit in a Byte, only the low-order 8 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigDecimal value as well as return a result with the opposite sign.
- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- def charValue: Char
Converts this BigDecimal to a Char.
Converts this BigDecimal to a Char. If the BigDecimal is too big to fit in a Char, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigDecimal value and that it always returns a positive result.
- def clone(): AnyRef
Create a copy of the receiver object.
Create a copy of the receiver object.
The default implementation of the
clone
method is platform dependent.- returns
a copy of the receiver object.
- def compare(that: BigDecimal): Int
Compares this BigDecimal with the specified BigDecimal
Compares this BigDecimal with the specified BigDecimal
- Definition Classes
- BigDecimal → Ordered
- def compareTo(that: BigDecimal): Int
Result of comparing
this
with operandthat
.Result of comparing
this
with operandthat
.- Definition Classes
- Ordered → Comparable
- def doubleValue: Double
Converts this BigDecimal to a Double.
Converts this BigDecimal to a Double. if this BigDecimal has too great a magnitude to represent as a double, it will be converted to
Double.NEGATIVE_INFINITY
orDouble.POSITIVE_INFINITY
as appropriate.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- def ensuring(cond: (BigDecimal) => Boolean, msg: => Any): BigDecimal
- Implicit
- This member is added by an implicit conversion from BigDecimal toEnsuring[BigDecimal] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: (BigDecimal) => Boolean): BigDecimal
- Implicit
- This member is added by an implicit conversion from BigDecimal toEnsuring[BigDecimal] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean, msg: => Any): BigDecimal
- Implicit
- This member is added by an implicit conversion from BigDecimal toEnsuring[BigDecimal] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- def ensuring(cond: Boolean): BigDecimal
- Implicit
- This member is added by an implicit conversion from BigDecimal toEnsuring[BigDecimal] performed by method Ensuring in scala.Predef.
- Definition Classes
- Ensuring
- final def eq(arg0: AnyRef): Boolean
Tests whether the argument (
that
) is a reference to the receiver object (this
).Tests whether the argument (
that
) is a reference to the receiver object (this
).The
eq
method implements an equivalence relation on non-null instances ofAnyRef
, and has three additional properties:- It is consistent: for any non-null instances
x
andy
of typeAnyRef
, multiple invocations ofx.eq(y)
consistently returnstrue
or consistently returnsfalse
. - For any non-null instance
x
of typeAnyRef
,x.eq(null)
andnull.eq(x)
returnsfalse
. null.eq(null)
returnstrue
.
When overriding the
equals
orhashCode
methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2
), they should be equal to each other (o1 == o2
) and they should hash to the same value (o1.hashCode == o2.hashCode
).- returns
true
if the argument is a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
- It is consistent: for any non-null instances
- def equals(that: BigDecimal): Boolean
Compares this BigDecimal with the specified BigDecimal for equality.
- def equals(that: Any): Boolean
Compares this BigDecimal with the specified value for equality.
Compares this BigDecimal with the specified value for equality. Where
Float
andDouble
disagree,BigDecimal
will agree with theDouble
value- that
the object to compare against this object for equality.
- returns
true
if the receiver object is equivalent to the argument;false
otherwise.
- Definition Classes
- BigDecimal → AnyRef → Any
- def finalize(): Unit
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the
finalize
method is invoked, as well as the interaction betweenfinalize
and non-local returns and exceptions, are all platform dependent.- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable])
- Note
not specified by SLS as a member of AnyRef
- def floatValue: Float
Converts this BigDecimal to a Float.
Converts this BigDecimal to a Float. if this BigDecimal has too great a magnitude to represent as a float, it will be converted to
Float.NEGATIVE_INFINITY
orFloat.POSITIVE_INFINITY
as appropriate.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- final def getClass(): Class[_ <: AnyRef]
Returns the runtime class representation of the object.
- def hashCode(): Int
Returns the hash code for this BigDecimal.
Returns the hash code for this BigDecimal. Note that this does not merely use the underlying java object's
hashCode
because we compareBigDecimal
s withcompareTo
which deems 2 == 2.00, whereas in java these are unequal with unequalhashCode
s. These hash codes agree withBigInt
for whole numbers up ~4934 digits (the range of IEEE 128 bit floating point). Beyond this, hash codes will disagree; this prevents the explicit representation of theBigInt
form forBigDecimal
values with large exponents.- returns
the hash code value for this object.
- Definition Classes
- BigDecimal → AnyRef → Any
- def intValue: Int
Converts this BigDecimal to an Int.
Converts this BigDecimal to an Int. If the BigDecimal is too big to fit in an Int, only the low-order 32 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigDecimal value as well as return a result with the opposite sign.
- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- def isBinaryDouble: Boolean
Tests whether this
BigDecimal
holds, to within precision, the binary representation of aDouble
. - def isBinaryFloat: Boolean
Tests whether this
BigDecimal
holds, to within precision, the binary representation of aFloat
. - def isDecimalDouble: Boolean
Tests whether this
BigDecimal
holds the decimal representation of aDouble
. - def isDecimalFloat: Boolean
Tests whether this
BigDecimal
holds the decimal representation of aFloat
. - def isExactDouble: Boolean
Tests whether this
BigDecimal
holds the exact expansion of aDouble
's binary fractional form into base 10. - def isExactFloat: Boolean
Tests whether this
BigDecimal
holds the exact expansion of aFloat
's binary fractional form into base 10. - final def isInstanceOf[T0]: Boolean
Test whether the dynamic type of the receiver object has the same erasure as
T0
.Test whether the dynamic type of the receiver object has the same erasure as
T0
.Depending on what
T0
is, the test is done in one of the below ways:T0
is a non-parameterized class type, e.g.BigDecimal
: this method returnstrue
if the value of the receiver object is aBigDecimal
or a subtype ofBigDecimal
.T0
is a parameterized class type, e.g.List[Int]
: this method returnstrue
if the value of the receiver object is someList[X]
for anyX
. For example,List(1, 2, 3).isInstanceOf[List[String]]
will return true.T0
is some singleton typex.type
or literalx
: this method returnsthis.eq(x)
. For example,x.isInstanceOf[1]
is equivalent tox.eq(1)
T0
is an intersectionX with Y
orX & Y: this method is equivalent to
x.isInstanceOf[X] && x.isInstanceOf[Y]T0
is a unionX | Y
: this method is equivalent tox.isInstanceOf[X] || x.isInstanceOf[Y]
T0
is a type parameter or an abstract type member: this method is equivalent toisInstanceOf[U]
whereU
isT0
's upper bound,Any
ifT0
is unbounded. For example,x.isInstanceOf[A]
whereA
is an unbounded type parameter will return true for any value ofx
.
This is exactly equivalent to the type pattern
_: T0
- returns
true
if the receiver object is an instance of erasure of typeT0
;false
otherwise.
- Definition Classes
- Any
- Note
due to the unexpectedness of
List(1, 2, 3).isInstanceOf[List[String]]
returning true andx.isInstanceOf[A]
whereA
is a type parameter or abstract member returning true, these forms issue a warning.
- def isValidByte: Boolean
Returns
true
iff this has a zero fractional part, and is within the range of scala.Byte MinValue and MaxValue; otherwise returnsfalse
.Returns
true
iff this has a zero fractional part, and is within the range of scala.Byte MinValue and MaxValue; otherwise returnsfalse
.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions
- def isValidChar: Boolean
Returns
true
iff this has a zero fractional part, and is within the range of scala.Char MinValue and MaxValue; otherwise returnsfalse
.Returns
true
iff this has a zero fractional part, and is within the range of scala.Char MinValue and MaxValue; otherwise returnsfalse
.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions
- def isValidInt: Boolean
Returns
true
iff this has a zero fractional part, and is within the range of scala.Int MinValue and MaxValue; otherwise returnsfalse
.Returns
true
iff this has a zero fractional part, and is within the range of scala.Int MinValue and MaxValue; otherwise returnsfalse
.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions
- def isValidLong: Boolean
- def isValidShort: Boolean
Returns
true
iff this has a zero fractional part, and is within the range of scala.Short MinValue and MaxValue; otherwise returnsfalse
.Returns
true
iff this has a zero fractional part, and is within the range of scala.Short MinValue and MaxValue; otherwise returnsfalse
.- Definition Classes
- BigDecimal → ScalaNumericAnyConversions
- def isWhole: Boolean
- returns
true
if this number has no decimal component,false
otherwise.
- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → ScalaNumber
- def longValue: Long
Converts this BigDecimal to a Long.
Converts this BigDecimal to a Long. If the BigDecimal is too big to fit in a Long, only the low-order 64 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigDecimal value as well as return a result with the opposite sign.
- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- def max(that: BigDecimal): BigDecimal
Returns the maximum of this and that, or this if the two are equal
- val mc: MathContext
- def min(that: BigDecimal): BigDecimal
Returns the minimum of this and that, or this if the two are equal
- final def ne(arg0: AnyRef): Boolean
Equivalent to
!(this eq that)
.Equivalent to
!(this eq that)
.- returns
true
if the argument is not a reference to the receiver object;false
otherwise.
- Definition Classes
- AnyRef
- final def notify(): Unit
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
- final def notifyAll(): Unit
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
- Definition Classes
- AnyRef
- Annotations
- @native()
- Note
not specified by SLS as a member of AnyRef
- def pow(n: Int): BigDecimal
Returns a BigDecimal whose value is this ** n.
- def precision: Int
Returns the precision of this
BigDecimal
. - def quot(that: BigDecimal): BigDecimal
Divide to Integral value.
- def remainder(that: BigDecimal): BigDecimal
Remainder after dividing this by that.
- def round(mc: MathContext): BigDecimal
Returns a BigDecimal rounded according to the supplied MathContext settings, but preserving its own MathContext for future operations.
- def rounded: BigDecimal
Returns a
BigDecimal
rounded according to its ownMathContext
- def scale: Int
Returns the scale of this
BigDecimal
. - def setScale(scale: Int, mode: RoundingMode): BigDecimal
- def setScale(scale: Int): BigDecimal
Returns a
BigDecimal
whose scale is the specified value, and whose value is numerically equal to this BigDecimal's. - def shortValue: Short
Converts this BigDecimal to a Short.
Converts this BigDecimal to a Short. If the BigDecimal is too big to fit in a Short, only the low-order 16 bits are returned. Note that this conversion can lose information about the overall magnitude of the BigDecimal value as well as return a result with the opposite sign.
- Definition Classes
- BigDecimal → ScalaNumericAnyConversions → Number
- def sign: BigDecimal
Returns the sign of this BigDecimal; -1 if it is less than 0, +1 if it is greater than 0, 0 if it is equal to 0.
- def signum: Int
Returns the sign of this BigDecimal; -1 if it is less than 0, +1 if it is greater than 0, 0 if it is equal to 0.
- final def synchronized[T0](arg0: => T0): T0
Executes the code in
body
with an exclusive lock onthis
.Executes the code in
body
with an exclusive lock onthis
.- returns
the result of
body
- Definition Classes
- AnyRef
- def to(end: BigDecimal, step: BigDecimal): Inclusive[scala.BigDecimal]
Like
until
, but inclusive of the end value. - def to(end: BigDecimal): Partial[BigDecimal, Inclusive[BigDecimal]]
Like
until
, but inclusive of the end value. - def toBigInt: BigInt
Converts this
BigDecimal
to a scala.BigInt. - def toBigIntExact: Option[BigInt]
Converts this
BigDecimal
to a scala.BigInt if it can be done losslessly, returning Some(BigInt) or None. - def toByte: Byte
Returns the value of this as a scala.Byte.
Returns the value of this as a scala.Byte. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toByteExact: Byte
Converts this
BigDecimal
to a scala.Byte, checking for lost information.Converts this
BigDecimal
to a scala.Byte, checking for lost information. If thisBigDecimal
has a nonzero fractional part, or is out of the possible range for a scala.Byte result, then ajava.lang.ArithmeticException
is thrown. - def toChar: Char
Returns the value of this as a scala.Char.
Returns the value of this as a scala.Char. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toDouble: Double
Returns the value of this as a scala.Double.
Returns the value of this as a scala.Double. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toFloat: Float
Returns the value of this as a scala.Float.
Returns the value of this as a scala.Float. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toInt: Int
Returns the value of this as an scala.Int.
Returns the value of this as an scala.Int. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toIntExact: Int
Converts this
BigDecimal
to a scala.Int, checking for lost information. - def toLong: Long
Returns the value of this as a scala.Long.
Returns the value of this as a scala.Long. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toLongExact: Long
Converts this
BigDecimal
to a scala.Long, checking for lost information.Converts this
BigDecimal
to a scala.Long, checking for lost information. If thisBigDecimal
has a nonzero fractional part, or is out of the possible range for a scala.Long result, then ajava.lang.ArithmeticException
is thrown. - def toShort: Short
Returns the value of this as a scala.Short.
Returns the value of this as a scala.Short. This may involve rounding or truncation.
- Definition Classes
- ScalaNumericAnyConversions
- def toShortExact: Short
Converts this
BigDecimal
to a scala.Short, checking for lost information.Converts this
BigDecimal
to a scala.Short, checking for lost information. If thisBigDecimal
has a nonzero fractional part, or is out of the possible range for a scala.Short result, then ajava.lang.ArithmeticException
is thrown. - def toString(): String
Returns the decimal String representation of this BigDecimal.
Returns the decimal String representation of this BigDecimal.
- returns
a String representation of the object.
- Definition Classes
- BigDecimal → AnyRef → Any
- def ulp: BigDecimal
Returns the size of an ulp, a unit in the last place, of this BigDecimal.
- def unary_-: BigDecimal
Returns a BigDecimal whose value is the negation of this BigDecimal
- def underlying(): java.math.BigDecimal
- Definition Classes
- BigDecimal → ScalaNumericConversions → ScalaNumber
- def unifiedPrimitiveEquals(x: Any): Boolean
Should only be called after all known non-primitive types have been excluded.
Should only be called after all known non-primitive types have been excluded. This method won't dispatch anywhere else after checking against the primitives to avoid infinite recursion between equals and this on unknown "Number" variants.
Additionally, this should only be called if the numeric type is happy to be converted to Long, Float, and Double. If for instance a BigInt much larger than the Long range is sent here, it will claim equality with whatever Long is left in its lower 64 bits. Or a BigDecimal with more precision than Double can hold: same thing. There's no way given the interface available here to prevent this error.
- Attributes
- protected
- Definition Classes
- ScalaNumericAnyConversions
- def unifiedPrimitiveHashcode: Int
- Attributes
- protected
- Definition Classes
- ScalaNumericAnyConversions
- def until(end: BigDecimal, step: BigDecimal): Exclusive[BigDecimal]
Same as the one-argument
until
, but creates the range immediately. - def until(end: BigDecimal): Partial[BigDecimal, Exclusive[BigDecimal]]
Creates a partially constructed NumericRange[BigDecimal] in range
[start;end)
, where start is the target BigDecimal.Creates a partially constructed NumericRange[BigDecimal] in range
[start;end)
, where start is the target BigDecimal. The step must be supplied via the "by" method of the returned object in order to receive the fully constructed range. For example:val partial = BigDecimal(1.0) to 2.0 // not usable yet val range = partial by 0.01 // now a NumericRange val range2 = BigDecimal(0) to 1.0 by 0.01 // all at once of course is fine too
- end
the end value of the range (exclusive)
- returns
the partially constructed NumericRange
- final def wait(): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--.
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- Note
not specified by SLS as a member of AnyRef
- final def wait(arg0: Long, arg1: Int): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- Note
not specified by SLS as a member of AnyRef
- final def wait(arg0: Long): Unit
See https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-.
Shadowed Implicit Value Members
- def +(other: String): String
- Implicit
- This member is added by an implicit conversion from BigDecimal toany2stringadd[BigDecimal] performed by method any2stringadd in scala.Predef.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: any2stringadd[BigDecimal]).+(other)
- Definition Classes
- any2stringadd
- def <(that: BigDecimal): Boolean
Returns true if
this
is less thanthat
Returns true if
this
is less thanthat
- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).<(that)
- Definition Classes
- Ordered
- def <=(that: BigDecimal): Boolean
Returns true if
this
is less than or equal tothat
.Returns true if
this
is less than or equal tothat
.- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).<=(that)
- Definition Classes
- Ordered
- def >(that: BigDecimal): Boolean
Returns true if
this
is greater thanthat
.Returns true if
this
is greater thanthat
.- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).>(that)
- Definition Classes
- Ordered
- def >=(that: BigDecimal): Boolean
Returns true if
this
is greater than or equal tothat
.Returns true if
this
is greater than or equal tothat
.- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).>=(that)
- Definition Classes
- Ordered
- def compare(that: BigDecimal): Int
Result of comparing
this
with operandthat
.Result of comparing
this
with operandthat
.Implement this method to determine how instances of A will be sorted.
Returns
x
where:x < 0
whenthis < that
x == 0
whenthis == that
x > 0
whenthis > that
- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).compare(that)
- Definition Classes
- Ordered
- def compareTo(that: BigDecimal): Int
Result of comparing
this
with operandthat
.Result of comparing
this
with operandthat
.- Implicit
- This member is added by an implicit conversion from BigDecimal toOrdered[BigDecimal] performed by method orderingToOrdered in scala.math.Ordered.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(bigDecimal: Ordered[BigDecimal]).compareTo(that)
- Definition Classes
- Ordered → Comparable
Deprecated Value Members
- def formatted(fmtstr: String): String
Returns string formatted according to given
format
string.Returns string formatted according to given
format
string. Format strings are as forString.format
(@see java.lang.String.format).- Implicit
- This member is added by an implicit conversion from BigDecimal toStringFormat[BigDecimal] performed by method StringFormat in scala.Predef.
- Definition Classes
- StringFormat
- Annotations
- @deprecated @inline()
- Deprecated
(Since version 2.12.16) Use
formatString.format(value)
instead ofvalue.formatted(formatString)
, or use thef""
string interpolator. In Java 15 and later,formatted
resolves to the new method in String which has reversed parameters.
- def →[B](y: B): (BigDecimal, B)
- Implicit
- This member is added by an implicit conversion from BigDecimal toArrowAssoc[BigDecimal] performed by method ArrowAssoc in scala.Predef.
- Definition Classes
- ArrowAssoc
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
->
instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.
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
.