Scala Language Java Interoperability Scala and Java type conversions
Example
Scala offers implicit conversions between all the major collection types in the JavaConverters object.
The following type conversions are bidirectional.
| Scala Type | Java Type |
|---|---|
| Iterator | java.util.Iterator |
| Iterator | java.util.Enumeration |
| Iterator | java.util.Iterable |
| Iterator | java.util.Collection |
| mutable.Buffer | java.util.List |
| mutable.Set | java.util.Set |
| mutable.Map | java.util.Map |
| mutable.ConcurrentMap | java.util.concurrent.ConcurrentMap |
Certain other Scala collections can also be converted to Java, but do not have a conversion back to the original Scala type:
| Scala Type | Java Type |
|---|---|
| Seq | java.util.List |
| mutable.Seq | java.util.List |
| Set | java.util.Set |
| Map | java.util.Map |
Reference:
Conversions Between Java and Scala Collections
