package convert
- Alphabetic
- Public
- Protected
Type Members
- trait AsJavaConverters extends AnyRef
Defines converter methods from Scala to Java collections.
Defines converter methods from Scala to Java collections. These methods are available through the scala.jdk.javaapi.CollectionConverters object.
- trait AsJavaExtensions extends AnyRef
Defines
asJava
extension methods, available through scala.jdk.CollectionConverters. - trait AsScalaConverters extends AnyRef
Defines converter methods from Java to Scala collections.
Defines converter methods from Java to Scala collections. These methods are available through the scala.jdk.javaapi.CollectionConverters object.
- trait AsScalaExtensions extends AnyRef
Defines
asScala
extension methods, available through scala.jdk.CollectionConverters. - trait StreamExtensions extends AnyRef
Defines extension methods to create Java Streams for Scala collections, available through scala.jdk.javaapi.StreamConverters.
Deprecated Type Members
- trait ToJavaImplicits extends AnyRef
Defines implicit conversions from Scala to Java collections.
Defines implicit conversions from Scala to Java collections.
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
scala.jdk.CollectionConverters
instead
- trait ToScalaImplicits extends AnyRef
Defines implicit converter methods from Java to Scala collections.
Defines implicit converter methods from Java to Scala collections.
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
scala.jdk.CollectionConverters
instead
Value Members
- object StreamExtensions
Deprecated Value Members
- object ImplicitConversions extends ToScalaImplicits with ToJavaImplicits
Convenience for miscellaneous implicit conversions between Java and Scala collections API.
Convenience for miscellaneous implicit conversions between Java and Scala collections API.
It is recommended to use explicit conversions provided by collection.JavaConverters instead. Implicit conversions may cause unexpected issues. Example:
import collection.convert.ImplicitConversions._ case class StringBox(s: String) val m = Map(StringBox("one") -> "uno") m.get("one")
The above example returns
null
instead of producing a type error at compile-time. The map is implicitly converted to ajava.util.Map
which provides a methodget(x: AnyRef)
.- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
scala.jdk.CollectionConverters
instead
- object ImplicitConversionsToJava extends ToJavaImplicits
Convenience for miscellaneous implicit conversions from Scala to Java collections API.
Convenience for miscellaneous implicit conversions from Scala to Java collections API.
It is recommended to use explicit conversions provided by collection.JavaConverters instead. Implicit conversions may cause unexpected issues, see ImplicitConversions.
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
scala.jdk.CollectionConverters
instead
- object ImplicitConversionsToScala extends ToScalaImplicits
Convenience for miscellaneous implicit conversions from Java to Scala collections API.
Convenience for miscellaneous implicit conversions from Java to Scala collections API.
It is recommended to use explicit conversions provided by collection.JavaConverters instead. Implicit conversions may cause unexpected issues, see ImplicitConversions.
- Annotations
- @deprecated
- Deprecated
(Since version 2.13.0) Use
scala.jdk.CollectionConverters
instead
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
.