# Class JSlider.AccessibleJSlider

java.lang.Object
javax.accessibility.AccessibleContext
java.awt.Component.AccessibleAWTComponent
java.awt.Container.AccessibleAWTContainer
javax.swing.JComponent.AccessibleJComponent
javax.swing.JSlider.AccessibleJSlider

All Implemented Interfaces:
  `Serializable`, `EventListener`, `AccessibleAction`, `AccessibleComponent`, `AccessibleExtendedComponent`, `AccessibleValue`, `ChangeListener`

Enclosing class:
  `JSlider`

protected class JSlider.AccessibleJSlider extends JComponent.AccessibleJComponent implements AccessibleValue, ChangeListener, AccessibleAction
This class implements accessibility support for the `JSlider` class. It provides an implementation of the Java Accessibility API appropriate to slider user-interface elements.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the `java.beans` package. Please see `XMLEncoder`.

Since:
  1.2

- ## Nested Class Summary

  ### Nested classes/interfaces declared in class javax.swing.JComponent.AccessibleJComponent

  `JComponent.AccessibleJComponent.AccessibleContainerHandler, JComponent.AccessibleJComponent.AccessibleFocusHandler`

  ### Nested classes/interfaces declared in class java.awt.Component.AccessibleAWTComponent

  `Component.AccessibleAWTComponent.AccessibleAWTComponentHandler, Component.AccessibleAWTComponent.AccessibleAWTFocusHandler`

- ## Field Summary

  ### Fields declared in class javax.swing.JComponent.AccessibleJComponent

  `accessibleFocusHandler`

  ### Fields declared in class java.awt.Container.AccessibleAWTContainer

  `accessibleContainerHandler`

  ### Fields declared in class java.awt.Component.AccessibleAWTComponent

  `accessibleAWTComponentHandler, accessibleAWTFocusHandler`

  ### Fields declared in class javax.accessibility.AccessibleContext

  `ACCESSIBLE_ACTION_PROPERTY, ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY, ACCESSIBLE_CARET_PROPERTY, ACCESSIBLE_CHILD_PROPERTY, ACCESSIBLE_COMPONENT_BOUNDS_CHANGED, ACCESSIBLE_DESCRIPTION_PROPERTY, ACCESSIBLE_HYPERTEXT_OFFSET, ACCESSIBLE_INVALIDATE_CHILDREN, ACCESSIBLE_NAME_PROPERTY, ACCESSIBLE_SELECTION_PROPERTY, ACCESSIBLE_STATE_PROPERTY, ACCESSIBLE_TABLE_CAPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED, ACCESSIBLE_TABLE_MODEL_CHANGED, ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED, ACCESSIBLE_TABLE_ROW_HEADER_CHANGED, ACCESSIBLE_TABLE_SUMMARY_CHANGED, ACCESSIBLE_TEXT_ATTRIBUTES_CHANGED, ACCESSIBLE_TEXT_PROPERTY, ACCESSIBLE_VALUE_PROPERTY, ACCESSIBLE_VISIBLE_DATA_PROPERTY, accessibleDescription, accessibleName, accessibleParent`

  ### Fields declared in interface javax.accessibility.AccessibleAction

  `CLICK, DECREMENT, INCREMENT, TOGGLE_EXPAND, TOGGLE_POPUP`

- ## Constructor Summary

  Constructors
  Modifier
  Constructor
  Description
  `protected`
  `AccessibleJSlider()`
  constructs an AccessibleJSlider

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `doAccessibleAction(int i)`
  Performs the specified Action on the object
  `AccessibleAction`
  `getAccessibleAction()`
  Gets the AccessibleAction associated with this object that supports one or more actions.
  `int`
  `getAccessibleActionCount()`
  Returns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object.
  `String`
  `getAccessibleActionDescription(int i)`
  Returns a description of the specified action of the object.
  `AccessibleRole`
  `getAccessibleRole()`
  Get the role of this object.
  `AccessibleStateSet`
  `getAccessibleStateSet()`
  Get the state set of this object.
  `AccessibleValue`
  `getAccessibleValue()`
  Get the AccessibleValue associated with this object.
  `Number`
  `getCurrentAccessibleValue()`
  Get the accessible value of this object.
  `Number`
  `getMaximumAccessibleValue()`
  Get the maximum accessible value of this object.
  `Number`
  `getMinimumAccessibleValue()`
  Get the minimum accessible value of this object.
  `boolean`
  `setCurrentAccessibleValue(Number n)`
  Set the value of this object as a Number.
  `void`
  `stateChanged(ChangeEvent e)`
  Invoked when the target of the listener has changed its state.

  ### Methods declared in class javax.swing.JComponent.AccessibleJComponent

  `addPropertyChangeListener, getAccessibleChild, getAccessibleChildrenCount, getAccessibleDescription, getAccessibleKeyBinding, getAccessibleName, getBorderTitle, getTitledBorderText, getToolTipText, removePropertyChangeListener`

  ### Methods declared in class java.awt.Container.AccessibleAWTContainer

  `getAccessibleAt`

  ### Methods declared in class java.awt.Component.AccessibleAWTComponent

  `addFocusListener, contains, getAccessibleComponent, getAccessibleIndexInParent, getAccessibleParent, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocale, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible`

  ### Methods declared in class javax.accessibility.AccessibleContext

  `firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleSelection, getAccessibleTable, getAccessibleText, setAccessibleDescription, setAccessibleName, setAccessibleParent`

  ### Methods declared in class java.lang.Object

  `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

  ### Methods declared in interface javax.accessibility.AccessibleComponent

  `addFocusListener, contains, getAccessibleAt, getBackground, getBounds, getCursor, getFont, getFontMetrics, getForeground, getLocation, getLocationOnScreen, getSize, isEnabled, isFocusTraversable, isShowing, isVisible, removeFocusListener, requestFocus, setBackground, setBounds, setCursor, setEnabled, setFont, setForeground, setLocation, setSize, setVisible`

- ## Constructor Details

  - ### AccessibleJSlider

    protected AccessibleJSlider()
    constructs an AccessibleJSlider

- ## Method Details

  - ### getAccessibleStateSet

    public AccessibleStateSet getAccessibleStateSet()
    Get the state set of this object.
    Overrides:
      `getAccessibleStateSet` in class `JComponent.AccessibleJComponent`
    Returns:
      an instance of AccessibleState containing the current state of the object
    See Also:
      - `AccessibleState`

  - ### stateChanged

    public void stateChanged(ChangeEvent e)
    Invoked when the target of the listener has changed its state.
    Specified by:
      `stateChanged` in interface `ChangeListener`
    Parameters:
      `e` - a `ChangeEvent` object. Must not be `null`
    Throws:
      `NullPointerException` - if the parameter is `null`
    Since:
      16

  - ### getAccessibleRole

    public AccessibleRole getAccessibleRole()
    Get the role of this object.
    Overrides:
      `getAccessibleRole` in class `JComponent.AccessibleJComponent`
    Returns:
      an instance of AccessibleRole describing the role of the object
    See Also:
      - `AccessibleRole`

  - ### getAccessibleValue

    public AccessibleValue getAccessibleValue()
    Get the AccessibleValue associated with this object. In the implementation of the Java Accessibility API for this class, return this object, which is responsible for implementing the AccessibleValue interface on behalf of itself.
    Overrides:
      `getAccessibleValue` in class `AccessibleContext`
    Returns:
      this object
    See Also:
      - `AccessibleValue`

  - ### getCurrentAccessibleValue

    public Number getCurrentAccessibleValue()
    Get the accessible value of this object.
    Specified by:
      `getCurrentAccessibleValue` in interface `AccessibleValue`
    Returns:
      The current value of this object.
    See Also:
      - `AccessibleValue.setCurrentAccessibleValue(java.lang.Number)`

  - ### setCurrentAccessibleValue

    public boolean setCurrentAccessibleValue(Number n)
    Set the value of this object as a Number.
    Specified by:
      `setCurrentAccessibleValue` in interface `AccessibleValue`
    Parameters:
      `n` - the number to use for the value
    Returns:
      True if the value was set.
    See Also:
      - `AccessibleValue.getCurrentAccessibleValue()`

  - ### getMinimumAccessibleValue

    public Number getMinimumAccessibleValue()
    Get the minimum accessible value of this object.
    Specified by:
      `getMinimumAccessibleValue` in interface `AccessibleValue`
    Returns:
      The minimum value of this object.
    See Also:
      - `AccessibleValue.getMaximumAccessibleValue()`

  - ### getMaximumAccessibleValue

    public Number getMaximumAccessibleValue()
    Get the maximum accessible value of this object.
    Specified by:
      `getMaximumAccessibleValue` in interface `AccessibleValue`
    Returns:
      The maximum value of this object.
    See Also:
      - `AccessibleValue.getMinimumAccessibleValue()`

  - ### getAccessibleAction

    public AccessibleAction getAccessibleAction()
    Gets the AccessibleAction associated with this object that supports one or more actions.
    Overrides:
      `getAccessibleAction` in class `AccessibleContext`
    Returns:
      AccessibleAction if supported by object; else return null
    See Also:
      - `AccessibleAction`

  - ### getAccessibleActionCount

    public int getAccessibleActionCount()
    Returns the number of accessible actions available in this object If there are more than one, the first one is considered the "default" action of the object. Two actions are supported: AccessibleAction.INCREMENT which increments the slider value and AccessibleAction.DECREMENT which decrements the slider value
    Specified by:
      `getAccessibleActionCount` in interface `AccessibleAction`
    Returns:
      the zero-based number of Actions in this object
    Since:
      17

  - ### getAccessibleActionDescription

    public String getAccessibleActionDescription(int i)
    Returns a description of the specified action of the object.
    Specified by:
      `getAccessibleActionDescription` in interface `AccessibleAction`
    Parameters:
      `i` - zero-based index of the actions
    Returns:
      a String description of the action
    Since:
      17
    See Also:
      - `getAccessibleActionCount()`

  - ### doAccessibleAction

    public boolean doAccessibleAction(int i)
    Performs the specified Action on the object
    Specified by:
      `doAccessibleAction` in interface `AccessibleAction`
    Parameters:
      `i` - zero-based index of actions. The first action (index 0) is AccessibleAction.INCREMENT and the second action (index 1) is AccessibleAction.DECREMENT.
    Returns:
      true if the action was performed, otherwise false
    Since:
      17
    See Also:
      - `getAccessibleActionCount()`