# Uses of Class
java.util.Hashtable

Packages that use Hashtable
Package
Description
java.awt
Contains all of the classes for creating user interfaces and for painting graphics and images.
java.awt.image
Provides classes for creating and modifying images.
java.security
Provides the classes and interfaces for the security framework.
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.
javax.management
Provides the core classes for the Java Management Extensions.
javax.naming
Provides the classes and interfaces for accessing naming services.
javax.naming.directory
Extends the `javax.naming` package to provide functionality for accessing directory services.
javax.naming.ldap
Provides support for LDAPv3 extended operations and controls.
javax.naming.spi
Provides the means for dynamically plugging in support for accessing naming and directory services through the `javax.naming` and related packages.
javax.swing
Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.plaf.basic
Provides user interface objects built according to the Basic look and feel.
javax.swing.text.html.parser
Provides the default HTML parser, along with support classes.
javax.swing.undo
Allows developers to provide support for undo/redo in applications such as text editors.

## Uses of Hashtable in java.awt

Fields in java.awt declared as Hashtable
Modifier and Type
Field
Description
`protected Hashtable<Component,GridBagConstraints>`
GridBagLayout.`comptable`
This hashtable maintains the association between a component and its gridbag constraints.

## Uses of Hashtable in java.awt.image

Methods in java.awt.image with parameters of type Hashtable
Modifier and Type
Method
Description
`void`
CropImageFilter.`setProperties(Hashtable<?,?> props)`
Passes along the properties from the source object after adding a property indicating the cropped region.
`void`
ImageConsumer.`setProperties(Hashtable<?,?> props)`
Sets the extensible list of properties associated with this image.
`void`
ImageFilter.`setProperties(Hashtable<?,?> props)`
Passes the properties from the source object along after adding a property indicating the stream of filters it has been run through.
`void`
PixelGrabber.`setProperties(Hashtable<?,?> props)`
The setProperties method is part of the ImageConsumer API which this class must implement to retrieve the pixels.
`void`
ReplicateScaleFilter.`setProperties(Hashtable<?,?> props)`
Passes along the properties from the source object after adding a property indicating the scale applied.
Constructors in java.awt.image with parameters of type Hashtable
Modifier
Constructor
Description
``
`BufferedImage(ColorModel cm, WritableRaster raster, boolean isRasterPremultiplied, Hashtable<?,?> properties)`
Constructs a new `BufferedImage` with a specified `ColorModel` and `Raster`.
``
`MemoryImageSource(int w, int h, int[] pix, int off, int scan, Hashtable<?,?> props)`
Constructs an ImageProducer object which uses an array of integers in the default RGB ColorModel to produce data for an Image object.
``
`MemoryImageSource(int w, int h, ColorModel cm, byte[] pix, int off, int scan, Hashtable<?,?> props)`
Constructs an ImageProducer object which uses an array of bytes to produce data for an Image object.
``
`MemoryImageSource(int w, int h, ColorModel cm, int[] pix, int off, int scan, Hashtable<?,?> props)`
Constructs an ImageProducer object which uses an array of integers to produce data for an Image object.

## Uses of Hashtable in java.security

Subclasses of Hashtable in java.security
Modifier and Type
Class
Description
`class`
`AuthProvider`
This class defines login and logout methods for a provider.
`class`
`Provider`
This class represents a "provider" for the Java Security API, where a provider implements some or all parts of Java Security.

## Uses of Hashtable in java.util

Subclasses of Hashtable in java.util
Modifier and Type
Class
Description
`class`
`Properties`
The `Properties` class represents a persistent set of properties.

## Uses of Hashtable in javax.management

Methods in javax.management that return Hashtable
Modifier and Type
Method
Description
`Hashtable<String,String>`
ObjectName.`getKeyPropertyList()`
Returns the key properties as a Hashtable.
Methods in javax.management with parameters of type Hashtable
Modifier and Type
Method
Description
`static ObjectName`
ObjectName.`getInstance(String domain, Hashtable<String,String> table)`
Return an instance of ObjectName that can be used anywhere an object obtained with `new ObjectName(domain, table)` can be used.
Constructors in javax.management with parameters of type Hashtable
Modifier
Constructor
Description
``
`ObjectName(String domain, Hashtable<String,String> table)`
Construct an object name with several key properties from a Hashtable.

## Uses of Hashtable in javax.naming

Fields in javax.naming declared as Hashtable
Modifier and Type
Field
Description
`protected Hashtable<?,?>`
CannotProceedException.`environment`
Contains the environment relevant for the Context or DirContext method that cannot proceed.
`protected Hashtable<Object,Object>`
InitialContext.`myProps`
The environment associated with this InitialContext.
Methods in javax.naming that return Hashtable
Modifier and Type
Method
Description
`Hashtable<?,?>`
CannotProceedException.`getEnvironment()`
Retrieves the environment that was in effect when this exception was created.
`Hashtable<?,?>`
Context.`getEnvironment()`
Retrieves the environment in effect for this context.
`Hashtable<?,?>`
InitialContext.`getEnvironment()`
Methods in javax.naming with parameters of type Hashtable
Modifier and Type
Method
Description
`abstract Context`
ReferralException.`getReferralContext(Hashtable<?,?> env)`
Retrieves the context at which to continue the method using environment properties.
`protected void`
InitialContext.`init(Hashtable<?,?> environment)`
Initializes the initial context using the supplied environment.
`void`
CannotProceedException.`setEnvironment(Hashtable<?,?> environment)`
Sets the environment that will be returned when getEnvironment() is called.
Constructors in javax.naming with parameters of type Hashtable
Modifier
Constructor
Description
``
`InitialContext(Hashtable<?,?> environment)`
Constructs an initial context using the supplied environment.

## Uses of Hashtable in javax.naming.directory

Constructors in javax.naming.directory with parameters of type Hashtable
Modifier
Constructor
Description
``
`InitialDirContext(Hashtable<?,?> environment)`
Constructs an initial DirContext using the supplied environment.

## Uses of Hashtable in javax.naming.ldap

Methods in javax.naming.ldap with parameters of type Hashtable
Modifier and Type
Method
Description
`static Control`
ControlFactory.`getControlInstance(Control ctl, Context ctx, Hashtable<?,?> env)`
Creates a control using known control factories.
`abstract Context`
LdapReferralException.`getReferralContext(Hashtable<?,?> env)`
Retrieves the context at which to continue the method using environment properties and no controls.
`abstract Context`
LdapReferralException.`getReferralContext(Hashtable<?,?> env, Control[] reqCtls)`
Retrieves the context at which to continue the method using request controls and environment properties.
Constructors in javax.naming.ldap with parameters of type Hashtable
Modifier
Constructor
Description
``
`InitialLdapContext(Hashtable<?,?> environment, Control[] connCtls)`
Constructs an initial context using environment properties and connection request controls.

## Uses of Hashtable in javax.naming.spi

Methods in javax.naming.spi with parameters of type Hashtable
Modifier and Type
Method
Description
`InitialContextFactory`
InitialContextFactoryBuilder.`createInitialContextFactory(Hashtable<?,?> environment)`
Creates an initial context factory using the specified environment.
`ObjectFactory`
ObjectFactoryBuilder.`createObjectFactory(Object obj, Hashtable<?,?> environment)`
Creates a new object factory using the environment supplied.
`Context`
InitialContextFactory.`getInitialContext(Hashtable<?,?> environment)`
Creates an Initial Context for beginning name resolution.
`static Context`
NamingManager.`getInitialContext(Hashtable<?,?> env)`
Creates an initial context using the specified environment properties.
`static Object`
DirectoryManager.`getObjectInstance(Object refInfo, Name name, Context nameCtx, Hashtable<?,?> environment, Attributes attrs)`
Creates an instance of an object for the specified object, attributes, and environment.
`Object`
DirObjectFactory.`getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment, Attributes attrs)`
Creates an object using the location or reference information, and attributes specified.
`static Object`
NamingManager.`getObjectInstance(Object refInfo, Name name, Context nameCtx, Hashtable<?,?> environment)`
Creates an instance of an object for the specified object and environment.
`Object`
ObjectFactory.`getObjectInstance(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment)`
Creates an object using the location or reference information specified.
`static DirStateFactory.Result`
DirectoryManager.`getStateToBind(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment, Attributes attrs)`
Retrieves the state of an object for binding when given the original object and its attributes.
`DirStateFactory.Result`
DirStateFactory.`getStateToBind(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment, Attributes inAttrs)`
Retrieves the state of an object for binding given the object and attributes to be transformed.
`static Object`
NamingManager.`getStateToBind(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment)`
Retrieves the state of an object for binding.
`Object`
StateFactory.`getStateToBind(Object obj, Name name, Context nameCtx, Hashtable<?,?> environment)`
Retrieves the state of an object for binding.
`static Context`
NamingManager.`getURLContext(String scheme, Hashtable<?,?> environment)`
Creates a context for the given URL scheme id.

## Uses of Hashtable in javax.swing

Subclasses of Hashtable in javax.swing
Modifier and Type
Class
Description
`class`
`UIDefaults`
A table of defaults for Swing components.
Fields in javax.swing declared as Hashtable
Modifier and Type
Field
Description
`protected Hashtable<Object,Object>`
JTable.`defaultEditorsByColumnClass`
A table of objects that display and edit the contents of a cell, indexed by class as declared in `getColumnClass` in the `TableModel` interface.
`protected Hashtable<Object,Object>`
JTable.`defaultRenderersByColumnClass`
A table of objects that display the contents of a cell, indexed by class as declared in `getColumnClass` in the `TableModel` interface.
Methods in javax.swing that return Hashtable
Modifier and Type
Method
Description
`Hashtable<Integer,JComponent>`
JSlider.`createStandardLabels(int increment)`
Creates a `Hashtable` of numerical text labels, starting at the slider minimum, and using the increment specified.
`Hashtable<Integer,JComponent>`
JSlider.`createStandardLabels(int increment, int start)`
Creates a `Hashtable` of numerical text labels, starting at the starting point specified, and using the increment specified.
`protected Hashtable<Component,Integer>`
JLayeredPane.`getComponentToLayer()`
Returns the hashtable that maps components to layers.
Constructors in javax.swing with parameters of type Hashtable
Modifier
Constructor
Description
``
`JTree(Hashtable<?,?> value)`
Returns a `JTree` created from a `Hashtable` which does not display with root.

## Uses of Hashtable in javax.swing.plaf.basic

Fields in javax.swing.plaf.basic declared as Hashtable
Modifier and Type
Field
Description
`protected Hashtable<TreePath,Boolean>`
BasicTreeUI.`drawingCache`
Used for minimizing the drawing of vertical lines.
`protected Hashtable<File,Icon>`
BasicFileChooserUI.BasicFileView.`iconCache`
The icon cache

## Uses of Hashtable in javax.swing.text.html.parser

Fields in javax.swing.text.html.parser declared as Hashtable
Modifier and Type
Field
Description
`Hashtable<String,Element>`
DTD.`elementHash`
The hash table contains the name of element and the corresponding element.
`Hashtable<Object,Entity>`
DTD.`entityHash`
The hash table contains an `Object` and the corresponding `Entity`

## Uses of Hashtable in javax.swing.undo

Fields in javax.swing.undo declared as Hashtable
Modifier and Type
Field
Description
`protected Hashtable<Object,Object>`
StateEdit.`postState`
The state information after the edit
`protected Hashtable<Object,Object>`
StateEdit.`preState`
The state information prior to the edit
Methods in javax.swing.undo with parameters of type Hashtable
Modifier and Type
Method
Description
`void`
StateEditable.`restoreState(Hashtable<?,?> state)`
Upon receiving this message the receiver should extract any relevant state out of state.
`void`
StateEditable.`storeState(Hashtable<Object,Object> state)`
Upon receiving this message the receiver should place any relevant state into state.