# Class JTable.AccessibleJTable.AccessibleJTableCell

java.lang.Object
javax.accessibility.AccessibleContext
javax.swing.JTable.AccessibleJTable.AccessibleJTableCell

All Implemented Interfaces:
  `Accessible, AccessibleComponent`

Enclosing class:
  `JTable.AccessibleJTable`

protected class JTable.AccessibleJTable.AccessibleJTableCell extends AccessibleContext implements Accessible, AccessibleComponent
The class provides an implementation of the Java Accessibility API appropriate to table cells.

Since:
  1.2

- ## Field Summary

  ### Fields declared in class 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`

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `AccessibleJTableCell(JTable t, int r, int c, int i)`
  Constructs an `AccessibleJTableHeaderEntry`.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `addFocusListener(FocusListener l)`
  Adds the specified focus listener to receive focus events from this component.
  `void`
  `addPropertyChangeListener(PropertyChangeListener l)`
  Adds a `PropertyChangeListener` to the listener list.
  `boolean`
  `contains(Point p)`
  Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
  `AccessibleAction`
  `getAccessibleAction()`
  Gets the `AccessibleAction` associated with this object if one exists.
  `Accessible`
  `getAccessibleAt(Point p)`
  Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
  `Accessible`
  `getAccessibleChild(int i)`
  Returns the specified `Accessible` child of the object.
  `int`
  `getAccessibleChildrenCount()`
  Returns the number of accessible children in the object.
  `AccessibleComponent`
  `getAccessibleComponent()`
  Gets the `AccessibleComponent` associated with this object if one exists.
  `AccessibleContext`
  `getAccessibleContext()`
  Gets the `AccessibleContext` associated with this component.
  `String`
  `getAccessibleDescription()`
  Gets the accessible description of this object.
  `int`
  `getAccessibleIndexInParent()`
  Gets the index of this object in its accessible parent.
  `String`
  `getAccessibleName()`
  Gets the accessible name of this object.
  `Accessible`
  `getAccessibleParent()`
  Gets the `Accessible` parent of this object.
  `AccessibleRole`
  `getAccessibleRole()`
  Gets the role of this object.
  `AccessibleSelection`
  `getAccessibleSelection()`
  Gets the `AccessibleSelection` associated with this object if one exists.
  `AccessibleStateSet`
  `getAccessibleStateSet()`
  Gets the state set of this object.
  `AccessibleText`
  `getAccessibleText()`
  Gets the `AccessibleText` associated with this object if one exists.
  `AccessibleValue`
  `getAccessibleValue()`
  Gets the `AccessibleValue` associated with this object if one exists.
  `Color`
  `getBackground()`
  Gets the background color of this object.
  `Rectangle`
  `getBounds()`
  Gets the bounds of this object in the form of a `Rectangle` object.
  `protected AccessibleContext`
  `getCurrentAccessibleContext()`
  Gets the AccessibleContext for the table cell renderer.
  `protected Component`
  `getCurrentComponent()`
  Gets the table cell renderer component.
  `Cursor`
  `getCursor()`
  Gets the `Cursor` of this object.
  `Font`
  `getFont()`
  Gets the `Font` of this object.
  `FontMetrics`
  `getFontMetrics(Font f)`
  Gets the `FontMetrics` of this object.
  `Color`
  `getForeground()`
  Gets the foreground color of this object.
  `Locale`
  `getLocale()`
  Gets the locale of the component.
  `Point`
  `getLocation()`
  Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
  `Point`
  `getLocationOnScreen()`
  Returns the location of the object on the screen.
  `Dimension`
  `getSize()`
  Returns the size of this object in the form of a `Dimension` object.
  `boolean`
  `isEnabled()`
  Determines if the object is enabled.
  `boolean`
  `isFocusTraversable()`
  Returns whether this object can accept focus or not.
  `boolean`
  `isShowing()`
  Determines if the object is showing.
  `boolean`
  `isVisible()`
  Determines if this object is visible.
  `void`
  `removeFocusListener(FocusListener l)`
  Removes the specified focus listener so it no longer receives focus events from this component.
  `void`
  `removePropertyChangeListener(PropertyChangeListener l)`
  Removes a `PropertyChangeListener` from the listener list.
  `void`
  `requestFocus()`
  Requests focus for this object.
  `void`
  `setAccessibleDescription(String s)`
  Sets the accessible description of this object.
  `void`
  `setAccessibleName(String s)`
  Sets the localized accessible name of this object.
  `void`
  `setBackground(Color c)`
  Sets the background color of this object.
  `void`
  `setBounds(Rectangle r)`
  Sets the bounds of this object in the form of a `Rectangle` object.
  `void`
  `setCursor(Cursor c)`
  Sets the `Cursor` of this object.
  `void`
  `setEnabled(boolean b)`
  Sets the enabled state of the object.
  `void`
  `setFont(Font f)`
  Sets the `Font` of this object.
  `void`
  `setForeground(Color c)`
  Sets the foreground color of this object.
  `void`
  `setLocation(Point p)`
  Sets the location of the object relative to the parent.
  `void`
  `setSize(Dimension d)`
  Resizes this object so that it has width and height.
  `void`
  `setVisible(boolean b)`
  Sets the visible state of the object.

  ### Methods declared in class AccessibleContext

  `firePropertyChange, getAccessibleEditableText, getAccessibleIcon, getAccessibleRelationSet, getAccessibleTable, setAccessibleParent`

  ### Methods declared in class Object

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

- ## Constructor Details

  - ### AccessibleJTableCell

    public AccessibleJTableCell(JTable t, int r, int c, int i)
    Constructs an `AccessibleJTableHeaderEntry`.
    Parameters:
      `t` - a `JTable`
      `r` - an `int` specifying a row
      `c` - an `int` specifying a column
      `i` - an `int` specifying the index to this cell
    Since:
      1.4

- ## Method Details

  - ### getAccessibleContext

    public AccessibleContext getAccessibleContext()
    Gets the `AccessibleContext` associated with this component. In the implementation of the Java Accessibility API for this class, return this object, which is its own `AccessibleContext`.
    Specified by:
      `getAccessibleContext` in interface `Accessible`
    Returns:
      this object

  - ### getCurrentAccessibleContext

    protected AccessibleContext getCurrentAccessibleContext()
    Gets the AccessibleContext for the table cell renderer.
    Returns:
      the `AccessibleContext` for the table cell renderer if one exists; otherwise, returns `null`.
    Since:
      1.6

  - ### getCurrentComponent

    protected Component getCurrentComponent()
    Gets the table cell renderer component.
    Returns:
      the table cell renderer component if one exists; otherwise, returns `null`.
    Since:
      1.6

  - ### getAccessibleName

    public String getAccessibleName()
    Gets the accessible name of this object.
    Overrides:
      `getAccessibleName` in class `AccessibleContext`
    Returns:
      the localized name of the object; `null` if this object does not have a name
    See Also:
      - `AccessibleContext.setAccessibleName(String)`

  - ### setAccessibleName

    public void setAccessibleName(String s)
    Sets the localized accessible name of this object.
    Overrides:
      `setAccessibleName` in class `AccessibleContext`
    Parameters:
      `s` - the new localized name of the object
    See Also:
      - `AccessibleContext.getAccessibleName()`
      - `AccessibleContext.addPropertyChangeListener(PropertyChangeListener)`

  - ### getAccessibleDescription

    public String getAccessibleDescription()
    Gets the accessible description of this object.
    Overrides:
      `getAccessibleDescription` in class `AccessibleContext`
    Returns:
      the localized description of the object; `null` if this object does not have a description
    See Also:
      - `AccessibleContext.setAccessibleDescription(String)`

  - ### setAccessibleDescription

    public void setAccessibleDescription(String s)
    Sets the accessible description of this object.
    Overrides:
      `setAccessibleDescription` in class `AccessibleContext`
    Parameters:
      `s` - the new localized description of the object
    See Also:
      - `AccessibleContext.setAccessibleName(String)`
      - `AccessibleContext.addPropertyChangeListener(PropertyChangeListener)`

  - ### getAccessibleRole

    public AccessibleRole getAccessibleRole()
    Gets the role of this object.
    Specified by:
      `getAccessibleRole` in class `AccessibleContext`
    Returns:
      an instance of `AccessibleRole` describing the role of the object
    See Also:
      - `AccessibleRole`

  - ### getAccessibleStateSet

    public AccessibleStateSet getAccessibleStateSet()
    Gets the state set of this object.
    Specified by:
      `getAccessibleStateSet` in class `AccessibleContext`
    Returns:
      an instance of `AccessibleStateSet` containing the current state set of the object
    See Also:
      - `AccessibleState`

  - ### getAccessibleParent

    public Accessible getAccessibleParent()
    Gets the `Accessible` parent of this object.
    Overrides:
      `getAccessibleParent` in class `AccessibleContext`
    Returns:
      the Accessible parent of this object; `null` if this object does not have an `Accessible` parent

  - ### getAccessibleIndexInParent

    public int getAccessibleIndexInParent()
    Gets the index of this object in its accessible parent.
    Specified by:
      `getAccessibleIndexInParent` in class `AccessibleContext`
    Returns:
      the index of this object in its parent; -1 if this object does not have an accessible parent
    See Also:
      - `getAccessibleParent()`

  - ### getAccessibleChildrenCount

    public int getAccessibleChildrenCount()
    Returns the number of accessible children in the object.
    Specified by:
      `getAccessibleChildrenCount` in class `AccessibleContext`
    Returns:
      the number of accessible children in the object

  - ### getAccessibleChild

    public Accessible getAccessibleChild(int i)
    Returns the specified `Accessible` child of the object.
    Specified by:
      `getAccessibleChild` in class `AccessibleContext`
    Parameters:
      `i` - zero-based index of child
    Returns:
      the `Accessible` child of the object
    See Also:
      - `AccessibleContext.getAccessibleChildrenCount()`

  - ### getLocale

    public Locale getLocale()
    Gets the locale of the component. If the component does not have a locale, then the locale of its parent is returned.
    Specified by:
      `getLocale` in class `AccessibleContext`
    Returns:
      this component's locale; if this component does not have a locale, the locale of its parent is returned
    Throws:
      `IllegalComponentStateException` - if the `Component` does not have its own locale and has not yet been added to a containment hierarchy such that the locale can be determined from the containing parent
    See Also:
      - `Component.setLocale(Locale)`

  - ### addPropertyChangeListener

    public void addPropertyChangeListener(PropertyChangeListener l)
    Adds a `PropertyChangeListener` to the listener list. The listener is registered for all properties.
    Overrides:
      `addPropertyChangeListener` in class `AccessibleContext`
    Parameters:
      `l` - the `PropertyChangeListener` to be added
    See Also:
      - `AccessibleContext.ACCESSIBLE_NAME_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_DESCRIPTION_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_STATE_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_VALUE_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_SELECTION_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_TEXT_PROPERTY`
      - `AccessibleContext.ACCESSIBLE_VISIBLE_DATA_PROPERTY`

  - ### removePropertyChangeListener

    public void removePropertyChangeListener(PropertyChangeListener l)
    Removes a `PropertyChangeListener` from the listener list. This removes a `PropertyChangeListener` that was registered for all properties.
    Overrides:
      `removePropertyChangeListener` in class `AccessibleContext`
    Parameters:
      `l` - the `PropertyChangeListener` to be removed

  - ### getAccessibleAction

    public AccessibleAction getAccessibleAction()
    Gets the `AccessibleAction` associated with this object if one exists. Otherwise returns `null`.
    Overrides:
      `getAccessibleAction` in class `AccessibleContext`
    Returns:
      the `AccessibleAction`, or `null`
    See Also:
      - `AccessibleAction`

  - ### getAccessibleComponent

    public AccessibleComponent getAccessibleComponent()
    Gets the `AccessibleComponent` associated with this object if one exists. Otherwise returns `null`.
    Overrides:
      `getAccessibleComponent` in class `AccessibleContext`
    Returns:
      the `AccessibleComponent`, or `null`
    See Also:
      - `AccessibleComponent`

  - ### getAccessibleSelection

    public AccessibleSelection getAccessibleSelection()
    Gets the `AccessibleSelection` associated with this object if one exists. Otherwise returns `null`.
    Overrides:
      `getAccessibleSelection` in class `AccessibleContext`
    Returns:
      the `AccessibleSelection`, or `null`
    See Also:
      - `AccessibleSelection`

  - ### getAccessibleText

    public AccessibleText getAccessibleText()
    Gets the `AccessibleText` associated with this object if one exists. Otherwise returns `null`.
    Overrides:
      `getAccessibleText` in class `AccessibleContext`
    Returns:
      the `AccessibleText`, or `null`
    See Also:
      - `AccessibleText`

  - ### getAccessibleValue

    public AccessibleValue getAccessibleValue()
    Gets the `AccessibleValue` associated with this object if one exists. Otherwise returns `null`.
    Overrides:
      `getAccessibleValue` in class `AccessibleContext`
    Returns:
      the `AccessibleValue`, or `null`
    See Also:
      - `AccessibleValue`

  - ### getBackground

    public Color getBackground()
    Gets the background color of this object.
    Specified by:
      `getBackground` in interface `AccessibleComponent`
    Returns:
      the background color, if supported, of the object; otherwise, `null`
    See Also:
      - `AccessibleComponent.setBackground(Color)`

  - ### setBackground

    public void setBackground(Color c)
    Sets the background color of this object.
    Specified by:
      `setBackground` in interface `AccessibleComponent`
    Parameters:
      `c` - the new `Color` for the background
    See Also:
      - `AccessibleComponent.getBackground()`

  - ### getForeground

    public Color getForeground()
    Gets the foreground color of this object.
    Specified by:
      `getForeground` in interface `AccessibleComponent`
    Returns:
      the foreground color, if supported, of the object; otherwise, `null`
    See Also:
      - `AccessibleComponent.setForeground(Color)`

  - ### setForeground

    public void setForeground(Color c)
    Sets the foreground color of this object.
    Specified by:
      `setForeground` in interface `AccessibleComponent`
    Parameters:
      `c` - the new `Color` for the foreground
    See Also:
      - `AccessibleComponent.getForeground()`

  - ### getCursor

    public Cursor getCursor()
    Gets the `Cursor` of this object.
    Specified by:
      `getCursor` in interface `AccessibleComponent`
    Returns:
      the `Cursor`, if supported, of the object; otherwise, `null`
    See Also:
      - `AccessibleComponent.setCursor(Cursor)`

  - ### setCursor

    public void setCursor(Cursor c)
    Sets the `Cursor` of this object.
    Specified by:
      `setCursor` in interface `AccessibleComponent`
    Parameters:
      `c` - the new `Cursor` for the object
    See Also:
      - `AccessibleComponent.getCursor()`

  - ### getFont

    public Font getFont()
    Gets the `Font` of this object.
    Specified by:
      `getFont` in interface `AccessibleComponent`
    Returns:
      the `Font`,if supported, for the object; otherwise, `null`
    See Also:
      - `AccessibleComponent.setFont(Font)`

  - ### setFont

    public void setFont(Font f)
    Sets the `Font` of this object.
    Specified by:
      `setFont` in interface `AccessibleComponent`
    Parameters:
      `f` - the new `Font` for the object
    See Also:
      - `AccessibleComponent.getFont()`

  - ### getFontMetrics

    public FontMetrics getFontMetrics(Font f)
    Gets the `FontMetrics` of this object.
    Specified by:
      `getFontMetrics` in interface `AccessibleComponent`
    Parameters:
      `f` - the `Font`
    Returns:
      the `FontMetrics` object, if supported; otherwise `null`
    See Also:
      - `getFont()`

  - ### isEnabled

    public boolean isEnabled()
    Determines if the object is enabled.
    Specified by:
      `isEnabled` in interface `AccessibleComponent`
    Returns:
      true if object is enabled; otherwise, false
    See Also:
      - `AccessibleComponent.setEnabled(boolean)`
      - `AccessibleContext.getAccessibleStateSet()`
      - `AccessibleState.ENABLED`
      - `AccessibleStateSet`

  - ### setEnabled

    public void setEnabled(boolean b)
    Sets the enabled state of the object.
    Specified by:
      `setEnabled` in interface `AccessibleComponent`
    Parameters:
      `b` - if true, enables this object; otherwise, disables it
    See Also:
      - `AccessibleComponent.isEnabled()`

  - ### isVisible

    public boolean isVisible()
    Determines if this object is visible. Note: this means that the object intends to be visible; however, it may not in fact be showing on the screen because one of the objects that this object is contained by is not visible. To determine if an object is showing on the screen, use `isShowing`.
    Specified by:
      `isVisible` in interface `AccessibleComponent`
    Returns:
      true if object is visible; otherwise, false
    See Also:
      - `AccessibleComponent.setVisible(boolean)`
      - `AccessibleContext.getAccessibleStateSet()`
      - `AccessibleState.VISIBLE`
      - `AccessibleStateSet`

  - ### setVisible

    public void setVisible(boolean b)
    Sets the visible state of the object.
    Specified by:
      `setVisible` in interface `AccessibleComponent`
    Parameters:
      `b` - if true, shows this object; otherwise, hides it
    See Also:
      - `AccessibleComponent.isVisible()`

  - ### isShowing

    public boolean isShowing()
    Determines if the object is showing. This is determined by checking the visibility of the object and ancestors of the object. Note: this will return true even if the object is obscured by another (for example, it happens to be underneath a menu that was pulled down).
    Specified by:
      `isShowing` in interface `AccessibleComponent`
    Returns:
      true if the object is showing; otherwise, false

  - ### contains

    public boolean contains(Point p)
    Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.
    Specified by:
      `contains` in interface `AccessibleComponent`
    Parameters:
      `p` - the `Point` relative to the coordinate system of the object
    Returns:
      true if object contains `Point`; otherwise false
    See Also:
      - `AccessibleComponent.getBounds()`

  - ### getLocationOnScreen

    public Point getLocationOnScreen()
    Returns the location of the object on the screen.
    Specified by:
      `getLocationOnScreen` in interface `AccessibleComponent`
    Returns:
      location of object on screen -- can be `null` if this object is not on the screen
    See Also:
      - `AccessibleComponent.getBounds()`
      - `AccessibleComponent.getLocation()`

  - ### getLocation

    public Point getLocation()
    Gets the location of the object relative to the parent in the form of a point specifying the object's top-left corner in the screen's coordinate space.
    Specified by:
      `getLocation` in interface `AccessibleComponent`
    Returns:
      an instance of `Point` representing the top-left corner of the object's bounds in the coordinate space of the screen; `null` if this object or its parent are not on the screen
    See Also:
      - `AccessibleComponent.getBounds()`
      - `AccessibleComponent.getLocationOnScreen()`

  - ### setLocation

    public void setLocation(Point p)
    Sets the location of the object relative to the parent.
    Specified by:
      `setLocation` in interface `AccessibleComponent`
    Parameters:
      `p` - the new position for the top-left corner
    See Also:
      - `AccessibleComponent.getLocation()`

  - ### getBounds

    public Rectangle getBounds()
    Description copied from interface: `AccessibleComponent`
    Gets the bounds of this object in the form of a `Rectangle` object. The bounds specify this object's width, height, and location relative to its parent.
    Specified by:
      `getBounds` in interface `AccessibleComponent`
    Returns:
      A rectangle indicating this component's bounds; `null` if this object is not on the screen.
    See Also:
      - `AccessibleComponent.contains(Point)`

  - ### setBounds

    public void setBounds(Rectangle r)
    Description copied from interface: `AccessibleComponent`
    Sets the bounds of this object in the form of a `Rectangle` object. The bounds specify this object's width, height, and location relative to its parent.
    Specified by:
      `setBounds` in interface `AccessibleComponent`
    Parameters:
      `r` - rectangle indicating this component's bounds
    See Also:
      - `AccessibleComponent.getBounds()`

  - ### getSize

    public Dimension getSize()
    Description copied from interface: `AccessibleComponent`
    Returns the size of this object in the form of a `Dimension` object. The `height` field of the `Dimension` object contains this object's height, and the `width` field of the `Dimension` object contains this object's width.
    Specified by:
      `getSize` in interface `AccessibleComponent`
    Returns:
      A `Dimension` object that indicates the size of this component; `null` if this object is not on the screen
    See Also:
      - `AccessibleComponent.setSize(Dimension)`

  - ### setSize

    public void setSize(Dimension d)
    Description copied from interface: `AccessibleComponent`
    Resizes this object so that it has width and height.
    Specified by:
      `setSize` in interface `AccessibleComponent`
    Parameters:
      `d` - The dimension specifying the new size of the object
    See Also:
      - `AccessibleComponent.getSize()`

  - ### getAccessibleAt

    public Accessible getAccessibleAt(Point p)
    Description copied from interface: `AccessibleComponent`
    Returns the `Accessible` child, if one exists, contained at the local coordinate `Point`.
    Specified by:
      `getAccessibleAt` in interface `AccessibleComponent`
    Parameters:
      `p` - The point relative to the coordinate system of this object
    Returns:
      the `Accessible`, if it exists, at the specified location; otherwise `null`

  - ### isFocusTraversable

    public boolean isFocusTraversable()
    Description copied from interface: `AccessibleComponent`
    Returns whether this object can accept focus or not. Objects that can accept focus will also have the `AccessibleState.FOCUSABLE` state set in their `AccessibleStateSets`.
    Specified by:
      `isFocusTraversable` in interface `AccessibleComponent`
    Returns:
      `true` if object can accept focus; otherwise `false`
    See Also:
      - `AccessibleContext.getAccessibleStateSet()`
      - `AccessibleState.FOCUSABLE`
      - `AccessibleState.FOCUSED`
      - `AccessibleStateSet`

  - ### requestFocus

    public void requestFocus()
    Description copied from interface: `AccessibleComponent`
    Requests focus for this object. If this object cannot accept focus, nothing will happen. Otherwise, the object will attempt to take focus.
    Specified by:
      `requestFocus` in interface `AccessibleComponent`
    See Also:
      - `AccessibleComponent.isFocusTraversable()`

  - ### addFocusListener

    public void addFocusListener(FocusListener l)
    Description copied from interface: `AccessibleComponent`
    Adds the specified focus listener to receive focus events from this component.
    Specified by:
      `addFocusListener` in interface `AccessibleComponent`
    Parameters:
      `l` - the focus listener
    See Also:
      - `AccessibleComponent.removeFocusListener(FocusListener)`

  - ### removeFocusListener

    public void removeFocusListener(FocusListener l)
    Description copied from interface: `AccessibleComponent`
    Removes the specified focus listener so it no longer receives focus events from this component.
    Specified by:
      `removeFocusListener` in interface `AccessibleComponent`
    Parameters:
      `l` - the focus listener
    See Also:
      - `AccessibleComponent.addFocusListener(FocusListener)`