object Numeric extends Serializable
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Type Members
- trait BigDecimalAsIfIntegral extends BigDecimalIsConflicted with Integral[BigDecimal]
- trait BigDecimalIsConflicted extends Numeric[BigDecimal]
- trait BigDecimalIsFractional extends BigDecimalIsConflicted with Fractional[BigDecimal]
- trait BigIntIsIntegral extends Integral[BigInt]
- trait ByteIsIntegral extends Integral[Byte]
- trait CharIsIntegral extends Integral[Char]
- trait DoubleAsIfIntegral extends DoubleIsConflicted with Integral[Double]
- trait DoubleIsConflicted extends Numeric[Double]
- trait DoubleIsFractional extends DoubleIsConflicted with Fractional[Double]
- trait ExtraImplicits extends AnyRef
- trait FloatAsIfIntegral extends FloatIsConflicted with Integral[Float]
- trait FloatIsConflicted extends Numeric[Float]
- trait FloatIsFractional extends FloatIsConflicted with Fractional[Float]
- trait IntIsIntegral extends Integral[Int]
- trait LongIsIntegral extends Integral[Long]
- trait ShortIsIntegral extends Integral[Short]
Value Members
- object BigDecimalAsIfIntegral extends BigDecimalAsIfIntegral with BigDecimalOrdering
- implicit object BigDecimalIsFractional extends BigDecimalIsFractional with BigDecimalOrdering
- implicit object BigIntIsIntegral extends BigIntIsIntegral with BigIntOrdering
- implicit object ByteIsIntegral extends ByteIsIntegral with ByteOrdering
- implicit object CharIsIntegral extends CharIsIntegral with CharOrdering
- object DoubleAsIfIntegral extends DoubleAsIfIntegral with DoubleOrdering
- implicit object DoubleIsFractional extends DoubleIsFractional with DoubleOrdering
- object FloatAsIfIntegral extends FloatAsIfIntegral with FloatOrdering
- implicit object FloatIsFractional extends FloatIsFractional with FloatOrdering
- object Implicits extends ExtraImplicits
- implicit object IntIsIntegral extends IntIsIntegral with IntOrdering
- implicit object LongIsIntegral extends LongIsIntegral with LongOrdering
- implicit object ShortIsIntegral extends ShortIsIntegral with ShortOrdering
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
.