## Uses of Interface
java.util.Iterator

- Packages that use Iterator
  Package | Description
  --- | ---
  com.sun.jdi.event | This package defines JDI events and event processing.
  com.sun.source.util | Provides utilities for operations on abstract syntax trees (AST).
  java.applet | Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context.
  java.awt.dnd | Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI.
  java.beans.beancontext | Provides classes and interfaces relating to bean context.
  java.lang | Provides classes that are fundamental to the design of the Java programming language.
  java.nio.charset.spi | Service-provider classes for the `java.nio.charset` package.
  java.nio.file | Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
  java.security.cert | Provides classes and interfaces for parsing and managing certificates, certificate revocation lists (CRLs), and certification paths.
  java.sql | Provides the API for accessing and processing data stored in a data source (usually a relational database) using the Java™ programming language.
  java.util | Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.
  java.util.concurrent | Utility classes commonly useful in concurrent programming.
  java.util.stream | Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
  javax.imageio | The main package of the Java Image I/O API.
  javax.imageio.spi | A package of the Java Image I/O API containing the plug-in interfaces for readers, writers, transcoders, and streams, and a runtime registry.
  javax.tools | Provides interfaces for tools which can be invoked from a program, for example, compilers.
  javax.xml.crypto | Common classes for XML cryptography.
  javax.xml.crypto.dom | DOM-specific classes for the `javax.xml.crypto` package.
  javax.xml.namespace | Defines XML Namespace processing.
  javax.xml.stream | Defines interfaces and classes for the Streaming API for XML (StAX).
  javax.xml.stream.events | Defines event interfaces for the Streaming API for XML (StAX).
  javax.xml.stream.util | Provides utility classes for the Streaming API for XML (StAX).
  javax.xml.xpath | Provides an object-model neutral API for the evaluation of XPath expressions and access to the evaluation environment.

- - ### Uses of Iterator in com.sun.jdi.event

    Subinterfaces of Iterator in com.sun.jdi.event
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `EventIterator` | EventIterators are unmodifiable.

  - ### Uses of Iterator in com.sun.source.util

    Methods in com.sun.source.util that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Tree>` | TreePath.`iterator()` | Iterates from leaves to root.

  - ### Uses of Iterator in java.applet

    Methods in java.applet that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<String>` | AppletContext.`getStreamKeys()` | Deprecated. Finds all the keys of the streams in this applet context.

  - ### Uses of Iterator in java.awt.dnd

    Methods in java.awt.dnd that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<InputEvent>` | DragGestureEvent.`iterator()` | Returns an `Iterator` for the events comprising the gesture.

  - ### Uses of Iterator in java.beans.beancontext

    Classes in java.beans.beancontext that implement Iterator
    Modifier and Type | Class | Description
    --- | --- | ---
    `protected static class` | `BeanContextSupport.BCSIterator` | protected final subclass that encapsulates an iterator but implements a noop remove() method.

    Methods in java.beans.beancontext that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected Iterator<BeanContextSupport.BCSChild>` | BeanContextSupport.`bcsChildren()` | Returns an iterator of all children of this `BeanContext`.
    `Iterator<?>` | BeanContextServices.`getCurrentServiceClasses()` | Gets the currently available services for this context.
    `Iterator<Object>` | BeanContextServicesSupport.`getCurrentServiceClasses()` |
    `Iterator<?>` | BeanContextServiceAvailableEvent.`getCurrentServiceSelectors()` | Gets the list of service dependent selectors.
    `Iterator<?>` | BeanContextServiceProvider.`getCurrentServiceSelectors​(BeanContextServices bcs, Class<?> serviceClass)` | Invoked by `BeanContextServices`, this method gets the current service selectors for the specified service.
    `Iterator<?>` | BeanContextServices.`getCurrentServiceSelectors​(Class<?> serviceClass)` | Gets the list of service dependent service parameters (Service Selectors) for the specified service, by calling getCurrentServiceSelectors() on the underlying BeanContextServiceProvider.
    `Iterator<?>` | BeanContextServicesSupport.`getCurrentServiceSelectors​(Class<?> serviceClass)` |
    `Iterator` | BeanContextMembershipEvent.`iterator()` | Gets the array of children affected by this event.
    `Iterator<Object>` | BeanContextSupport.`iterator()` | Gets all JavaBean or `BeanContext` instances currently nested in this `BeanContext`.

  - ### Uses of Iterator in java.lang

    Methods in java.lang that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<T>` | Iterable.`iterator()` | Returns an iterator over elements of type `T`.

  - ### Uses of Iterator in java.nio.charset.spi

    Methods in java.nio.charset.spi that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract Iterator<Charset>` | CharsetProvider.`charsets()` | Creates an iterator that iterates over the charsets supported by this provider.

  - ### Uses of Iterator in java.nio.file

    Methods in java.nio.file that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<T>` | DirectoryStream.`iterator()` | Returns the iterator associated with this `DirectoryStream`.
    `default Iterator<Path>` | Path.`iterator()` | Returns an iterator over the name elements of this path.

  - ### Uses of Iterator in java.security.cert

    Methods in java.security.cert that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<String>` | CertificateFactorySpi.`engineGetCertPathEncodings()` | Returns an iteration of the `CertPath` encodings supported by this certificate factory, with the default encoding first.
    `Iterator<String>` | CertificateFactory.`getCertPathEncodings()` | Returns an iteration of the `CertPath` encodings supported by this certificate factory, with the default encoding first.
    `Iterator<? extends PolicyNode>` | PolicyNode.`getChildren()` | Returns an iterator over the children of this node.
    `abstract Iterator<String>` | CertPath.`getEncodings()` | Returns an iteration of the encodings supported by this certification path, with the default encoding first.

  - ### Uses of Iterator in java.sql

    Methods in java.sql that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Throwable>` | SQLException.`iterator()` | Returns an iterator over the chained SQLExceptions.

  - ### Uses of Iterator in java.util

    Subinterfaces of Iterator in java.util
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `ListIterator<E>` | An iterator for lists that allows the programmer to traverse the list in either direction, modify the list during iteration, and obtain the iterator's current position in the list.
    `interface` | `PrimitiveIterator<T,​T_CONS>` | A base type for primitive specializations of `Iterator`.
    `static interface` | `PrimitiveIterator.OfDouble` | An Iterator specialized for `double` values.
    `static interface` | `PrimitiveIterator.OfInt` | An Iterator specialized for `int` values.
    `static interface` | `PrimitiveIterator.OfLong` | An Iterator specialized for `long` values.

    Classes in java.util that implement Iterator
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `Scanner` | A simple text scanner which can parse primitive types and strings using regular expressions.

    Methods in java.util that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `default Iterator<E>` | Enumeration.`asIterator()` | Returns an `Iterator` that traverses the remaining elements covered by this enumeration.
    `Iterator<E>` | Deque.`descendingIterator()` | Returns an iterator over the elements in this deque in reverse sequential order.
    `Iterator<E>` | LinkedList.`descendingIterator()` |
    `Iterator<E>` | NavigableSet.`descendingIterator()` | Returns an iterator over the elements in this set, in descending order.
    `Iterator<E>` | TreeSet.`descendingIterator()` | Returns an iterator over the elements in this set in descending order.
    `static <T> Iterator<T>` | Collections.`emptyIterator()` | Returns an iterator that has no elements.
    `abstract Iterator<E>` | AbstractCollection.`iterator()` | Returns an iterator over the elements contained in this collection.
    `Iterator<E>` | AbstractList.`iterator()` | Returns an iterator over the elements in this list in proper sequence.
    `Iterator<E>` | AbstractSequentialList.`iterator()` | Returns an iterator over the elements in this list (in proper sequence).
    `Iterator<E>` | ArrayDeque.`iterator()` | Returns an iterator over the elements in this deque.
    `Iterator<E>` | ArrayList.`iterator()` | Returns an iterator over the elements in this list in proper sequence.
    `Iterator<E>` | Collection.`iterator()` | Returns an iterator over the elements in this collection.
    `Iterator<E>` | Deque.`iterator()` | Returns an iterator over the elements in this deque in proper sequence.
    `Iterator<E>` | HashSet.`iterator()` | Returns an iterator over the elements in this set.
    `Iterator<E>` | List.`iterator()` | Returns an iterator over the elements in this list in proper sequence.
    `Iterator<E>` | NavigableSet.`iterator()` | Returns an iterator over the elements in this set, in ascending order.
    `Iterator<E>` | PriorityQueue.`iterator()` | Returns an iterator over the elements in this queue.
    `Iterator<S>` | ServiceLoader.`iterator()` | Returns an iterator to lazily load and instantiate the available providers of this loader's service.
    `Iterator<E>` | Set.`iterator()` | Returns an iterator over the elements in this set.
    `static <T> Iterator<T>` | Spliterators.`iterator​(Spliterator<? extends T> spliterator)` | Creates an `Iterator` from a `Spliterator`.
    `Iterator<E>` | TreeSet.`iterator()` | Returns an iterator over the elements in this set in ascending order.
    `Iterator<E>` | Vector.`iterator()` | Returns an iterator over the elements in this list in proper sequence.

    Methods in java.util with parameters of type Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `static <T> Spliterator<T>` | Spliterators.`spliterator​(Iterator<? extends T> iterator, long size, int characteristics)` | Creates a `Spliterator` using a given `Iterator` as the source of elements, and with a given initially reported size.
    `static <T> Spliterator<T>` | Spliterators.`spliteratorUnknownSize​(Iterator<? extends T> iterator, int characteristics)` | Creates a `Spliterator` using a given `Iterator` as the source of elements, with no initial size estimate.

  - ### Uses of Iterator in java.util.concurrent

    Methods in java.util.concurrent that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<E>` | ConcurrentLinkedDeque.`descendingIterator()` | Returns an iterator over the elements in this deque in reverse sequential order.
    `Iterator<E>` | ConcurrentSkipListSet.`descendingIterator()` | Returns an iterator over the elements in this set in descending order.
    `Iterator<E>` | LinkedBlockingDeque.`descendingIterator()` | Returns an iterator over the elements in this deque in reverse sequential order.
    `Iterator<E>` | ArrayBlockingQueue.`iterator()` | Returns an iterator over the elements in this queue in proper sequence.
    `Iterator<E>` | BlockingDeque.`iterator()` | Returns an iterator over the elements in this deque in proper sequence.
    `Iterator<K>` | ConcurrentHashMap.KeySetView.`iterator()` |
    `Iterator<E>` | ConcurrentLinkedDeque.`iterator()` | Returns an iterator over the elements in this deque in proper sequence.
    `Iterator<E>` | ConcurrentLinkedQueue.`iterator()` | Returns an iterator over the elements in this queue in proper sequence.
    `Iterator<E>` | ConcurrentSkipListSet.`iterator()` | Returns an iterator over the elements in this set in ascending order.
    `Iterator<E>` | CopyOnWriteArrayList.`iterator()` | Returns an iterator over the elements in this list in proper sequence.
    `Iterator<E>` | CopyOnWriteArraySet.`iterator()` | Returns an iterator over the elements contained in this set in the order in which these elements were added.
    `Iterator<E>` | DelayQueue.`iterator()` | Returns an iterator over all the elements (both expired and unexpired) in this queue.
    `Iterator<E>` | LinkedBlockingDeque.`iterator()` | Returns an iterator over the elements in this deque in proper sequence.
    `Iterator<E>` | LinkedBlockingQueue.`iterator()` | Returns an iterator over the elements in this queue in proper sequence.
    `Iterator<E>` | LinkedTransferQueue.`iterator()` | Returns an iterator over the elements in this queue in proper sequence.
    `Iterator<E>` | PriorityBlockingQueue.`iterator()` | Returns an iterator over the elements in this queue.
    `Iterator<E>` | SynchronousQueue.`iterator()` | Returns an empty iterator in which `hasNext` always returns `false`.

  - ### Uses of Iterator in java.util.stream

    Methods in java.util.stream that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<T>` | BaseStream.`iterator()` | Returns an iterator for the elements of this stream.

  - ### Uses of Iterator in javax.imageio

    Methods in javax.imageio that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `static Iterator<ImageReader>` | ImageIO.`getImageReaders​(Object input)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode the supplied `Object`, typically an `ImageInputStream`.
    `static Iterator<ImageReader>` | ImageIO.`getImageReadersByFormatName​(String formatName)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode the named format.
    `static Iterator<ImageReader>` | ImageIO.`getImageReadersByMIMEType​(String MIMEType)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode files with the given MIME type.
    `static Iterator<ImageReader>` | ImageIO.`getImageReadersBySuffix​(String fileSuffix)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode files with the given suffix.
    `static Iterator<ImageTranscoder>` | ImageIO.`getImageTranscoders​(ImageReader reader, ImageWriter writer)` | Returns an `Iterator` containing all currently registered `ImageTranscoder`s that claim to be able to transcode between the metadata of the given `ImageReader` and `ImageWriter`.
    `abstract Iterator<ImageTypeSpecifier>` | ImageReader.`getImageTypes​(int imageIndex)` | Returns an `Iterator` containing possible image types to which the given image may be decoded, in the form of `ImageTypeSpecifiers`s.
    `static Iterator<ImageWriter>` | ImageIO.`getImageWriters​(ImageTypeSpecifier type, String formatName)` | Returns an `Iterator` containing all currently registered `ImageWriter`s that claim to be able to encode images of the given layout (specified using an `ImageTypeSpecifier`) in the given format.
    `static Iterator<ImageWriter>` | ImageIO.`getImageWritersByFormatName​(String formatName)` | Returns an `Iterator` containing all currently registered `ImageWriter`s that claim to be able to encode the named format.
    `static Iterator<ImageWriter>` | ImageIO.`getImageWritersByMIMEType​(String MIMEType)` | Returns an `Iterator` containing all currently registered `ImageWriter`s that claim to be able to encode files with the given MIME type.
    `static Iterator<ImageWriter>` | ImageIO.`getImageWritersBySuffix​(String fileSuffix)` | Returns an `Iterator` containing all currently registered `ImageWriter`s that claim to be able to encode files with the given suffix.
    `Iterator<IIOImage>` | ImageReader.`readAll​(Iterator<? extends ImageReadParam> params)` | Returns an `Iterator` containing all the images, thumbnails, and metadata, starting at the index given by `getMinIndex`, from the input source in the form of `IIOImage` objects.

    Methods in javax.imageio with parameters of type Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `protected static BufferedImage` | ImageReader.`getDestination​(ImageReadParam param, Iterator<ImageTypeSpecifier> imageTypes, int width, int height)` | Returns the `BufferedImage` to which decoded pixel data should be written.
    `Iterator<IIOImage>` | ImageReader.`readAll​(Iterator<? extends ImageReadParam> params)` | Returns an `Iterator` containing all the images, thumbnails, and metadata, starting at the index given by `getMinIndex`, from the input source in the form of `IIOImage` objects.

  - ### Uses of Iterator in javax.imageio.spi

    Methods in javax.imageio.spi that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Class<?>>` | ServiceRegistry.`getCategories()` | Returns an `Iterator` of `Class` objects indicating the current set of categories.
    `<T> Iterator<T>` | ServiceRegistry.`getServiceProviders​(Class<T> category, boolean useOrdering)` | Returns an `Iterator` containing all registered service providers in the given category.
    `<T> Iterator<T>` | ServiceRegistry.`getServiceProviders​(Class<T> category, ServiceRegistry.Filter filter, boolean useOrdering)` | Returns an `Iterator` containing service provider objects within a given category that satisfy a criterion imposed by the supplied `ServiceRegistry.Filter` object's `filter` method.
    `static <T> Iterator<T>` | ServiceRegistry.`lookupProviders​(Class<T> providerClass)` | Locates and incrementally instantiates the available providers of a given service using the context class loader.
    `static <T> Iterator<T>` | ServiceRegistry.`lookupProviders​(Class<T> providerClass, ClassLoader loader)` | Searches for implementations of a particular service class using the given class loader.

    Methods in javax.imageio.spi with parameters of type Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | ServiceRegistry.`registerServiceProviders​(Iterator<?> providers)` | Adds a set of service provider objects, taken from an `Iterator` to the registry.

    Constructors in javax.imageio.spi with parameters of type Iterator
    Constructor | Description
    --- | ---
    `ServiceRegistry​(Iterator<Class<?>> categories)` | Constructs a `ServiceRegistry` instance with a set of categories taken from the `categories` argument.

  - ### Uses of Iterator in javax.tools

    Methods in javax.tools with parameters of type Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | ForwardingJavaFileManager.`handleOption​(String current, Iterator<String> remaining)` |
    `boolean` | JavaFileManager.`handleOption​(String current, Iterator<String> remaining)` | Handles one option.

  - ### Uses of Iterator in javax.xml.crypto

    Methods in javax.xml.crypto that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<T>` | NodeSetData.`iterator()` | Returns a read-only iterator over the nodes contained in this `NodeSetData` in document order.

  - ### Uses of Iterator in javax.xml.crypto.dom

    Methods in javax.xml.crypto.dom that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Map.Entry<String,​Element>>` | DOMCryptoContext.`iterator()` | Returns a read-only iterator over the set of Id/Element mappings of this `DOMCryptoContext`.

  - ### Uses of Iterator in javax.xml.namespace

    Methods in javax.xml.namespace that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<String>` | NamespaceContext.`getPrefixes​(String namespaceURI)` | Get all prefixes bound to a Namespace URI in the current scope.

  - ### Uses of Iterator in javax.xml.stream

    Subinterfaces of Iterator in javax.xml.stream
    Modifier and Type | Interface | Description
    --- | --- | ---
    `interface` | `XMLEventReader` | This is the top level interface for parsing XML Events.

    Methods in javax.xml.stream with parameters of type Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `abstract EndElement` | XMLEventFactory.`createEndElement​(String prefix, String namespaceUri, String localName, Iterator<? extends Namespace> namespaces)` | Create a new EndElement
    `abstract EndElement` | XMLEventFactory.`createEndElement​(QName name, Iterator<? extends Namespace> namespaces)` | Create a new EndElement
    `abstract StartElement` | XMLEventFactory.`createStartElement​(String prefix, String namespaceUri, String localName, Iterator<? extends Attribute> attributes, Iterator<? extends Namespace> namespaces)` | Create a new StartElement.
    `abstract StartElement` | XMLEventFactory.`createStartElement​(String prefix, String namespaceUri, String localName, Iterator<? extends Attribute> attributes, Iterator<? extends Namespace> namespaces, NamespaceContext context)` | Create a new StartElement.
    `abstract StartElement` | XMLEventFactory.`createStartElement​(QName name, Iterator<? extends Attribute> attributes, Iterator<? extends Namespace> namespaces)` | Create a new StartElement.

  - ### Uses of Iterator in javax.xml.stream.events

    Methods in javax.xml.stream.events that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Attribute>` | StartElement.`getAttributes()` | Returns an Iterator of non-namespace declared attributes declared on this START_ELEMENT, returns an empty iterator if there are no attributes.
    `Iterator<Namespace>` | EndElement.`getNamespaces()` | Returns an Iterator of namespaces that have gone out of scope.
    `Iterator<Namespace>` | StartElement.`getNamespaces()` | Returns an Iterator of namespaces declared on this element.

  - ### Uses of Iterator in javax.xml.stream.util

    Classes in javax.xml.stream.util that implement Iterator
    Modifier and Type | Class | Description
    --- | --- | ---
    `class` | `EventReaderDelegate` | This is the base class for deriving an XMLEventReader filter.

  - ### Uses of Iterator in javax.xml.xpath

    Methods in javax.xml.xpath that return Iterator
    Modifier and Type | Method | Description
    --- | --- | ---
    `Iterator<Node>` | XPathNodes.`iterator()` | Returns an iterator of the Nodes.