Test two objects for inequality.
true
if !(this == that), false otherwise.
Equivalent to x.hashCode
except for boxed numeric types and null
. 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. For null
returns a hashcode where null.hashCode
throws a NullPointerException
.
a hash value consistent with ==
The expression x == that
is equivalent to if (x eq null) that eq null else x.equals(that)
.
true
if the receiver object is equivalent to the argument; false
otherwise.
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 a ClassCastException
at runtime, while the expression List(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.
the receiver object.
ClassCastException
if the receiver object is not an instance of the erasure of type T0
.
Converts a Scala Iterable
to an immutable Java Collection
.
If the Scala Iterable
was previously obtained from an implicit or explicit call of JavaConverters.collectionAsScalaIterable(java.util.Collection)
then the original Java Collection
will be returned.
The Scala Iterable
to be converted.
A Java Collection
view of the argument.
Converts a Scala mutable Map
to a Java Dictionary
.
The returned Java Dictionary
is backed by the provided Scala Dictionary
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Dictionary
was previously obtained from an implicit or explicit call of JavaConverters.dictionaryAsScalaMap(java.util.Dictionary)
then the original Java Dictionary
will be returned.
The Scala Map
to be converted.
A Java Dictionary
view of the argument.
Converts a Scala Iterator
to a Java Enumeration
.
The returned Java Enumeration
is backed by the provided Scala Iterator
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Iterator
was previously obtained from an implicit or explicit call of JavaConverters.enumerationAsScalaIterator(java.util.Enumeration)
then the original Java Enumeration
will be returned.
The Scala Iterator
to be converted.
A Java Enumeration
view of the argument.
Converts a Scala Iterable
to a Java Iterable
.
The returned Java Iterable
is backed by the provided Scala Iterable
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Iterable
was previously obtained from an implicit or explicit call of JavaConverters.iterableAsScalaIterable(java.lang.Iterable)
then the original Java Iterable
will be returned.
The Scala Iterable
to be converted.
A Java Iterable
view of the argument.
Converts a Scala Iterator
to a Java Iterator
.
The returned Java Iterator
is backed by the provided Scala Iterator
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Iterator
was previously obtained from an implicit or explicit call of JavaConverters.asScalaIterator(java.util.Iterator)
then the original Java Iterator
will be returned.
The Scala Iterator
to be converted.
A Java Iterator
view of the argument.
Converts a Scala mutable Buffer
to a Java List.
The returned Java List is backed by the provided Scala Buffer
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Buffer
was previously obtained from an implicit or explicit call of JavaConverters.asScalaBuffer(java.util.List)
then the original Java List
will be returned.
The Scala Buffer
to be converted.
A Java List
view of the argument.
Create a copy of the receiver object.
The default implementation of the clone
method is platform dependent.
a copy of the receiver object.
Tests whether the argument (that
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on non-null instances of AnyRef
, and has three additional properties:
x
and y
of type AnyRef
, multiple invocations of x.eq(y)
consistently returns true
or consistently returns false
.For any non-null instance x
of type AnyRef
, x.eq(null)
and null.eq(x)
returns false
.
null.eq(null)
returns true
. When overriding the equals
or hashCode
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
).
true
if the argument is a reference to the receiver object; false
otherwise.
The equality method for reference types. Default implementation delegates to eq
.
See also equals
in scala.Any.
true
if the receiver object is equivalent to the argument; false
otherwise.
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 between finalize
and non-local returns and exceptions, are all platform dependent.
not specified by SLS as a member of AnyRef
Returns string formatted according to given format
string. Format strings are as for String.format
(@see java.lang.String.format).
Returns the runtime class representation of the object.
a class object corresponding to the runtime type of the receiver.
The hashCode method for reference types. See hashCode in scala.Any.
the hash code value for this object.
Test whether the dynamic type of the receiver object is T0
.
Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String]
will return false
, while the expression List(1).isInstanceOf[List[String]]
will return true
. 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 specified type.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Converts a Scala mutable concurrent.Map
to a Java ConcurrentMap
.
The returned Java ConcurrentMap
is backed by the provided Scala concurrent.Map
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala concurrent.Map
was previously obtained from an implicit or explicit call of JavaConverters.mapAsScalaConcurrentMap(java.util.concurrent.ConcurrentMap)
then the original Java ConcurrentMap
will be returned.
The Scala concurrent.Map
to be converted.
A Java ConcurrentMap
view of the argument.
Converts a Scala Map
to a Java Map
.
The returned Java Map
is backed by the provided Scala Map
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Map
was previously obtained from an implicit or explicit call of JavaConverters.mapAsScalaMap(java.util.Map)
then the original Java Map
will be returned.
The Scala Map
to be converted.
A Java Map
view of the argument.
Converts a Scala mutable Map
to a Java Map
.
The returned Java Map
is backed by the provided Scala Map
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Map
was previously obtained from an implicit or explicit call of JavaConverters.mapAsScalaMap(java.util.Map)
then the original Java Map
will be returned.
The Scala mutable Map
to be converted.
A Java Map
view of the argument.
Converts a Scala mutable Seq
to a Java List
.
The returned Java List
is backed by the provided Scala Seq
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Seq
was previously obtained from an implicit or explicit call of JavaConverters.asScalaBuffer(java.util.List)
then the original Java List
will be returned.
The Scala Seq
to be converted.
A Java List
view of the argument.
Converts a Scala mutable Set
to a Java Set
.
The returned Java Set
is backed by the provided Scala Set
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Set
was previously obtained from an implicit or explicit call of JavaConverters.asScalaSet(java.util.Set)
then the original Java Set
will be returned.
The Scala mutable Set
to be converted.
A Java Set
view of the argument.
Equivalent to !(this eq that)
.
true
if the argument is not a reference to the receiver object; false
otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Converts a Scala Seq
to a Java List
.
The returned Java List
is backed by the provided Scala Seq
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Seq
was previously obtained from an implicit or explicit call of JavaConverters.asScalaBuffer(java.util.List)
then the original Java List
will be returned.
The Scala Seq
to be converted.
A Java List
view of the argument.
Converts a Scala Set
to a Java Set
.
The returned Java Set
is backed by the provided Scala Set
and any side-effects of using it via the Java interface will be visible via the Scala interface and vice versa.
If the Scala Set
was previously obtained from an implicit or explicit call of JavaConverters.asScalaSet(java.util.Set)
then the original Java Set
will be returned.
The Scala Set
to be converted.
A Java Set
view of the argument.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
© 2002-2019 EPFL, with contributions from Lightbend.
Licensed under the Apache License, Version 2.0.
https://www.scala-lang.org/api/2.12.9/scala/collection/convert/AsJavaConverters.html
Defines converter methods from Scala to Java collections.