Package Summary Overview Summary

### class:JInternalFrame [NONE]
- All Implemented Interfaces: ImageObserver, MenuContainer, Serializable, Accessible, RootPaneContainer, WindowConstants
      public class JInternalFrame
      extends JComponent
      implements Accessible, WindowConstants, RootPaneContainer
  A lightweight object that provides many of the features of a native frame, including dragging, closing, becoming an icon, resizing, title display, and support for a menu bar. For task-oriented documentation and examples of using internal frames, see How to Use Internal Frames , a section in The Java Tutorial . Generally, you add `JInternalFrame`s to a `JDesktopPane`. The UI delegates the look-and-feel-specific actions to the `DesktopManager` object maintained by the `JDesktopPane`. The `JInternalFrame` content pane is where you add child components. As a convenience, the `add`, `remove`, and `setLayout` methods of this class are overridden, so that they delegate calls to the corresponding methods of the `ContentPane`. For example, you can add a child component to an internal frame as follows:
             internalFrame.add(child);
And the child will be added to the contentPane. The content pane is actually managed by an instance of `JRootPane`, which also manages a layout pane, glass pane, and optional menu bar for the internal frame. Please see the `JRootPane` documentation for a complete description of these components. Refer to `RootPaneContainer` for details on adding, removing and setting the `LayoutManager` of a `JInternalFrame`. Warning: Swing is not thread safe. For more information see Swing's Threading Policy . 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 See Also: `InternalFrameEvent`, `JDesktopPane`, `DesktopManager`, `JInternalFrame.JDesktopIcon`, `JRootPane`, `RootPaneContainer`

### field:rootPane [NONE]
- #### rootPane
      protected JRootPane rootPane
The `JRootPane` instance that manages the content pane and optional menu bar for this internal frame, as well as the glass pane. See Also: `JRootPane`, `RootPaneContainer`

### field:rootPaneCheckingEnabled [NONE]
- #### rootPaneCheckingEnabled
      protected boolean rootPaneCheckingEnabled
If true then calls to `add` and `setLayout` will be forwarded to the `contentPane`. This is initially false, but is set to true when the `JInternalFrame` is constructed. See Also: `isRootPaneCheckingEnabled()`, `setRootPaneCheckingEnabled(boolean)`, `RootPaneContainer`

### field:closable [NONE]
- #### closable
      protected boolean closable
The frame can be closed.

### field:isClosed [NONE]
- #### isClosed
      protected boolean isClosed
The frame has been closed.

### field:maximizable [NONE]
- #### maximizable
      protected boolean maximizable
The frame can be expanded to the size of the desktop pane.

### field:isMaximum [NONE]
- #### isMaximum
      protected boolean isMaximum
The frame has been expanded to its maximum size. See Also: `maximizable`

### field:iconable [NONE]
- #### iconable
      protected boolean iconable
The frame can "iconified" (shrunk down and displayed as an icon-image). See Also: `JInternalFrame.JDesktopIcon`, `setIconifiable(boolean)`

### field:isIcon [NONE]
- #### isIcon
      protected boolean isIcon
The frame has been iconified. See Also: `isIcon()`

### field:resizable [NONE]
- #### resizable
      protected boolean resizable
The frame's size can be changed.

### field:isSelected [NONE]
- #### isSelected
      protected boolean isSelected
The frame is currently selected.

### field:frameIcon [NONE]
- #### frameIcon
      protected Icon frameIcon
The icon shown in the top-left corner of this internal frame.

### field:title [NONE]
- #### title
      protected String title
The title displayed in this internal frame's title bar.

### field:desktopIcon [NONE]
- #### desktopIcon
      protected JInternalFrame.JDesktopIcon desktopIcon
The icon that is displayed when this internal frame is iconified. See Also: `iconable`

### field:CONTENT_PANE_PROPERTY [NONE]
- #### CONTENT_PANE_PROPERTY
      public static final String CONTENT_PANE_PROPERTY
Bound property name. See Also: Constant Field Values

### field:MENU_BAR_PROPERTY [NONE]
- #### MENU_BAR_PROPERTY
      public static final String MENU_BAR_PROPERTY
Bound property name. See Also: Constant Field Values

### field:TITLE_PROPERTY [NONE]
- #### TITLE_PROPERTY
      public static final String TITLE_PROPERTY
Bound property name. See Also: Constant Field Values

### field:LAYERED_PANE_PROPERTY [NONE]
- #### LAYERED_PANE_PROPERTY
      public static final String LAYERED_PANE_PROPERTY
Bound property name. See Also: Constant Field Values

### field:ROOT_PANE_PROPERTY [NONE]
- #### ROOT_PANE_PROPERTY
      public static final String ROOT_PANE_PROPERTY
Bound property name. See Also: Constant Field Values

### field:GLASS_PANE_PROPERTY [NONE]
- #### GLASS_PANE_PROPERTY
      public static final String GLASS_PANE_PROPERTY
Bound property name. See Also: Constant Field Values

### field:FRAME_ICON_PROPERTY [NONE]
- #### FRAME_ICON_PROPERTY
      public static final String FRAME_ICON_PROPERTY
Bound property name. See Also: Constant Field Values

### field:IS_SELECTED_PROPERTY [NONE]
- #### IS_SELECTED_PROPERTY
      public static final String IS_SELECTED_PROPERTY
Constrained property name indicated that this frame has selected status. See Also: Constant Field Values

### field:IS_CLOSED_PROPERTY [NONE]
- #### IS_CLOSED_PROPERTY
      public static final String IS_CLOSED_PROPERTY
Constrained property name indicating that the internal frame is closed. See Also: Constant Field Values

### field:IS_MAXIMUM_PROPERTY [NONE]
- #### IS_MAXIMUM_PROPERTY
      public static final String IS_MAXIMUM_PROPERTY
Constrained property name indicating that the internal frame is maximized. See Also: Constant Field Values

### field:IS_ICON_PROPERTY [NONE]
- #### IS_ICON_PROPERTY
      public static final String IS_ICON_PROPERTY
Constrained property name indicating that the internal frame is iconified. See Also: Constant Field Values

### constructor:JInternalFrame() [NONE]
- #### JInternalFrame
      public JInternalFrame()
Creates a non-resizable, non-closable, non-maximizable, non-iconifiable `JInternalFrame` with no title.

### constructor:JInternalFrame(java.lang.String) [NONE]
- #### JInternalFrame
      public JInternalFrame(String title)
Creates a non-resizable, non-closable, non-maximizable, non-iconifiable `JInternalFrame` with the specified title. Note that passing in a `null` `title` results in unspecified behavior and possibly an exception. Parameters: `title` - the non-`null` `String` to display in the title bar

### constructor:JInternalFrame(java.lang.String, boolean) [NONE]
- #### JInternalFrame
      public JInternalFrame(String title,
                            boolean resizable)
Creates a non-closable, non-maximizable, non-iconifiable `JInternalFrame` with the specified title and resizability. Parameters: `title` - the `String` to display in the title bar `resizable` - if `true`, the internal frame can be resized

### constructor:JInternalFrame(java.lang.String, boolean, boolean) [NONE]
- #### JInternalFrame
      public JInternalFrame(String title,
                            boolean resizable,
                            boolean closable)
Creates a non-maximizable, non-iconifiable `JInternalFrame` with the specified title, resizability, and closability. Parameters: `title` - the `String` to display in the title bar `resizable` - if `true`, the internal frame can be resized `closable` - if `true`, the internal frame can be closed

### constructor:JInternalFrame(java.lang.String, boolean, boolean, boolean) [NONE]
- #### JInternalFrame
      public JInternalFrame(String title,
                            boolean resizable,
                            boolean closable,
                            boolean maximizable)
Creates a non-iconifiable `JInternalFrame` with the specified title, resizability, closability, and maximizability. Parameters: `title` - the `String` to display in the title bar `resizable` - if `true`, the internal frame can be resized `closable` - if `true`, the internal frame can be closed `maximizable` - if `true`, the internal frame can be maximized

### constructor:JInternalFrame(java.lang.String, boolean, boolean, boolean, boolean) [NONE]
- #### JInternalFrame
      public JInternalFrame(String title,
                            boolean resizable,
                            boolean closable,
                            boolean maximizable,
                            boolean iconifiable)
Creates a `JInternalFrame` with the specified title, resizability, closability, maximizability, and iconifiability. All `JInternalFrame` constructors use this one. Parameters: `title` - the `String` to display in the title bar `resizable` - if `true`, the internal frame can be resized `closable` - if `true`, the internal frame can be closed `maximizable` - if `true`, the internal frame can be maximized `iconifiable` - if `true`, the internal frame can be iconified

### method:createRootPane() [NONE]
- #### createRootPane
      protected JRootPane createRootPane()
Called by the constructor to set up the `JRootPane`. Returns: a new `JRootPane` See Also: `JRootPane`

### method:getUI() [NONE]
- #### getUI
      public InternalFrameUI getUI()
Returns the look-and-feel object that renders this component. Returns: the `InternalFrameUI` object that renders this component

### method:setUI(javax.swing.plaf.InternalFrameUI) [NONE]
- #### setUI
      public void setUI(InternalFrameUI ui)
Sets the UI delegate for this `JInternalFrame`. Parameters: `ui` - the UI delegate

### method:updateUI() [NONE]
- #### updateUI
      public void updateUI()
Notification from the `UIManager` that the look and feel has changed. Replaces the current UI object with the latest version from the `UIManager`. Overrides: `updateUI` in class `JComponent` See Also: `JComponent.updateUI()`

### method:getUIClassID() [NONE]
- #### getUIClassID
      public String getUIClassID()
Returns the name of the look-and-feel class that renders this component. Overrides: `getUIClassID` in class `JComponent` Returns: the string "InternalFrameUI" See Also: `JComponent.getUIClassID()`, `UIDefaults.getUI(javax.swing.JComponent)`

### method:isRootPaneCheckingEnabled() [NONE]
- #### isRootPaneCheckingEnabled
      protected boolean isRootPaneCheckingEnabled()
Returns whether calls to `add` and `setLayout` are forwarded to the `contentPane`. Returns: true if `add` and `setLayout` are forwarded; false otherwise See Also: `addImpl(java.awt.Component, java.lang.Object, int)` , `setLayout(java.awt.LayoutManager)`, `setRootPaneCheckingEnabled(boolean)`, `RootPaneContainer`

### method:setRootPaneCheckingEnabled(boolean) [NONE]
- #### setRootPaneCheckingEnabled
      protected void setRootPaneCheckingEnabled(boolean enabled)
Sets whether calls to `add` and `setLayout` are forwarded to the `contentPane`. Parameters: `enabled` - true if `add` and `setLayout` are forwarded, false if they should operate directly on the `JInternalFrame`. See Also: `addImpl(java.awt.Component, java.lang.Object, int)` , `setLayout(java.awt.LayoutManager)`, `isRootPaneCheckingEnabled()`, `RootPaneContainer`

### method:addImpl(java.awt.Component, java.lang.Object, int) [NONE]
- #### addImpl
      protected void addImpl(Component comp,
                             Object constraints,
                             int index)
Adds the specified child `Component`. This method is overridden to conditionally forward calls to the `contentPane`. By default, children are added to the `contentPane` instead of the frame, refer to `RootPaneContainer` for details. Overrides: `addImpl` in class `Container` Parameters: `comp` - the component to be enhanced `constraints` - the constraints to be respected `index` - the index Throws: `IllegalArgumentException` - if `index` is invalid `IllegalArgumentException` - if adding the container's parent to itself `IllegalArgumentException` - if adding a window to a container See Also: `setRootPaneCheckingEnabled(boolean)`, `RootPaneContainer`

### method:remove(java.awt.Component) [NONE]
- #### remove
      public void remove(Component comp)
Removes the specified component from the container. If `comp` is not a child of the `JInternalFrame` this will forward the call to the `contentPane`. Overrides: `remove` in class `Container` Parameters: `comp` - the component to be removed Throws: `NullPointerException` - if `comp` is null See Also: `Container.add(java.awt.Component)`, `RootPaneContainer`

### method:setLayout(java.awt.LayoutManager) [NONE]
- #### setLayout
      public void setLayout(LayoutManager manager)
Ensures that, by default, the layout of this component cannot be set. Overridden to conditionally forward the call to the `contentPane`. Refer to `RootPaneContainer` for more information. Overrides: `setLayout` in class `Container` Parameters: `manager` - the `LayoutManager` See Also: `setRootPaneCheckingEnabled(boolean)`

### method:getMenuBar() [NONE]
- #### getMenuBar
      @Deprecated
      public JMenuBar getMenuBar()
Deprecated. As of Swing version 1.0.3, replaced by `getJMenuBar()`. Returns the current `JMenuBar` for this `JInternalFrame`, or `null` if no menu bar has been set. Returns: the current menu bar, or `null` if none has been set

### method:getJMenuBar() [NONE]
- #### getJMenuBar
      public JMenuBar getJMenuBar()
Returns the current `JMenuBar` for this `JInternalFrame`, or `null` if no menu bar has been set. Returns: the `JMenuBar` used by this internal frame See Also: `setJMenuBar(javax.swing.JMenuBar)`

### method:setMenuBar(javax.swing.JMenuBar) [NONE]
- #### setMenuBar
      @Deprecated
      public void setMenuBar(JMenuBar m)
Deprecated. As of Swing version 1.0.3 replaced by `setJMenuBar(JMenuBar m)` . Sets the `menuBar` property for this `JInternalFrame`. Parameters: `m` - the `JMenuBar` to use in this internal frame See Also: `getJMenuBar()`

### method:setJMenuBar(javax.swing.JMenuBar) [NONE]
- #### setJMenuBar
      public void setJMenuBar(JMenuBar m)
Sets the `menuBar` property for this `JInternalFrame`. Parameters: `m` - the `JMenuBar` to use in this internal frame See Also: `getJMenuBar()`

### method:getContentPane() [NONE]
- #### getContentPane
      public Container getContentPane()
Returns the content pane for this internal frame. Specified by: `getContentPane` in interface `RootPaneContainer` Returns: the content pane See Also: `RootPaneContainer.setContentPane(java.awt.Container)`

### method:setContentPane(java.awt.Container) [NONE]
- #### setContentPane
      public void setContentPane(Container c)
Sets this `JInternalFrame`'s `contentPane` property. Specified by: `setContentPane` in interface `RootPaneContainer` Parameters: `c` - the content pane for this internal frame Throws: `IllegalComponentStateException` - (a runtime exception) if the content pane parameter is `null` See Also: `RootPaneContainer.getContentPane()`

### method:getLayeredPane() [NONE]
- #### getLayeredPane
      public JLayeredPane getLayeredPane()
Returns the layered pane for this internal frame. Specified by: `getLayeredPane` in interface `RootPaneContainer` Returns: a `JLayeredPane` object See Also: `RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)`, `RootPaneContainer.getLayeredPane()`

### method:setLayeredPane(javax.swing.JLayeredPane) [NONE]
- #### setLayeredPane
      public void setLayeredPane(JLayeredPane layered)
Sets this `JInternalFrame`'s `layeredPane` property. Specified by: `setLayeredPane` in interface `RootPaneContainer` Parameters: `layered` - the `JLayeredPane` for this internal frame Throws: `IllegalComponentStateException` - (a runtime exception) if the layered pane parameter is `null` See Also: `RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)`

### method:getGlassPane() [NONE]
- #### getGlassPane
      public Component getGlassPane()
Returns the glass pane for this internal frame. Specified by: `getGlassPane` in interface `RootPaneContainer` Returns: the glass pane See Also: `RootPaneContainer.setGlassPane(java.awt.Component)`

### method:setGlassPane(java.awt.Component) [NONE]
- #### setGlassPane
      public void setGlassPane(Component glass)
Sets this `JInternalFrame`'s `glassPane` property. Specified by: `setGlassPane` in interface `RootPaneContainer` Parameters: `glass` - the glass pane for this internal frame See Also: `RootPaneContainer.getGlassPane()`

### method:getRootPane() [NONE]
- #### getRootPane
      public JRootPane getRootPane()
Returns the `rootPane` object for this internal frame. Specified by: `getRootPane` in interface `RootPaneContainer` Overrides: `getRootPane` in class `JComponent` Returns: the `rootPane` property See Also: `RootPaneContainer.getRootPane()`

### method:setRootPane(javax.swing.JRootPane) [NONE]
- #### setRootPane
      protected void setRootPane(JRootPane root)
Sets the `rootPane` property for this `JInternalFrame`. This method is called by the constructor. Parameters: `root` - the new `JRootPane` object

### method:setClosable(boolean) [NONE]
- #### setClosable
      public void setClosable(boolean b)
Sets whether this `JInternalFrame` can be closed by some user action. Parameters: `b` - a boolean value, where `true` means this internal frame can be closed

### method:isClosable() [NONE]
- #### isClosable
      public boolean isClosable()
Returns whether this `JInternalFrame` can be closed by some user action. Returns: `true` if this internal frame can be closed

### method:isClosed() [NONE]
- #### isClosed
      public boolean isClosed()
Returns whether this `JInternalFrame` is currently closed. Returns: `true` if this internal frame is closed, `false` otherwise

### method:setClosed(boolean) [NONE]
- #### setClosed
      public void setClosed(boolean b)
                     throws PropertyVetoException
Closes this internal frame if the argument is `true`. Do not invoke this method with a `false` argument; the result of invoking `setClosed(false)` is unspecified. If the internal frame is already closed, this method does nothing and returns immediately. Otherwise, this method begins by firing an `INTERNAL_FRAME_CLOSING` event. Then this method sets the `closed` property to `true` unless a listener vetoes the property change. This method finishes by making the internal frame invisible and unselected, and then firing an `INTERNAL_FRAME_CLOSED` event. Note: To reuse an internal frame that has been closed, you must add it to a container (even if you never removed it from its previous container). Typically, this container will be the `JDesktopPane` that previously contained the internal frame. Parameters: `b` - must be `true` Throws: `PropertyVetoException` - when the attempt to set the property is vetoed by the `JInternalFrame` See Also: `isClosed()`, `setDefaultCloseOperation(int)`, `dispose()`, `InternalFrameEvent.INTERNAL_FRAME_CLOSING`

### method:setResizable(boolean) [NONE]
- #### setResizable
      public void setResizable(boolean b)
Sets whether the `JInternalFrame` can be resized by some user action. Parameters: `b` - a boolean, where `true` means this internal frame can be resized

### method:isResizable() [NONE]
- #### isResizable
      public boolean isResizable()
Returns whether the `JInternalFrame` can be resized by some user action. Returns: `true` if this internal frame can be resized, `false` otherwise

### method:setIconifiable(boolean) [NONE]
- #### setIconifiable
      public void setIconifiable(boolean b)
Sets the `iconable` property, which must be `true` for the user to be able to make the `JInternalFrame` an icon. Some look and feels might not implement iconification; they will ignore this property. Parameters: `b` - a boolean, where `true` means this internal frame can be iconified

### method:isIconifiable() [NONE]
- #### isIconifiable
      public boolean isIconifiable()
Gets the `iconable` property, which by default is `false`. Returns: the value of the `iconable` property. See Also: `setIconifiable(boolean)`

### method:isIcon() [NONE]
- #### isIcon
      public boolean isIcon()
Returns whether the `JInternalFrame` is currently iconified. Returns: `true` if this internal frame is iconified

### method:setIcon(boolean) [NONE]
- #### setIcon
      public void setIcon(boolean b)
                   throws PropertyVetoException
Iconifies or de-iconifies this internal frame, if the look and feel supports iconification. If the internal frame's state changes to iconified, this method fires an `INTERNAL_FRAME_ICONIFIED` event. If the state changes to de-iconified, an `INTERNAL_FRAME_DEICONIFIED` event is fired. Parameters: `b` - a boolean, where `true` means to iconify this internal frame and `false` means to de-iconify it Throws: `PropertyVetoException` - when the attempt to set the property is vetoed by the `JInternalFrame` See Also: `InternalFrameEvent.INTERNAL_FRAME_ICONIFIED`, `InternalFrameEvent.INTERNAL_FRAME_DEICONIFIED`

### method:setMaximizable(boolean) [NONE]
- #### setMaximizable
      public void setMaximizable(boolean b)
Sets the `maximizable` property, which determines whether the `JInternalFrame` can be maximized by some user action. Some look and feels might not support maximizing internal frames; they will ignore this property. Parameters: `b` - `true` to specify that this internal frame should be maximizable; `false` to specify that it should not be

### method:isMaximizable() [NONE]
- #### isMaximizable
      public boolean isMaximizable()
Gets the value of the `maximizable` property. Returns: the value of the `maximizable` property See Also: `setMaximizable(boolean)`

### method:isMaximum() [NONE]
- #### isMaximum
      public boolean isMaximum()
Returns whether the `JInternalFrame` is currently maximized. Returns: `true` if this internal frame is maximized, `false` otherwise

### method:setMaximum(boolean) [NONE]
- #### setMaximum
      public void setMaximum(boolean b)
                      throws PropertyVetoException
Maximizes and restores this internal frame. A maximized frame is resized to fully fit the `JDesktopPane` area associated with the `JInternalFrame`. A restored frame's size is set to the `JInternalFrame`'s actual size. Parameters: `b` - a boolean, where `true` maximizes this internal frame and `false` restores it Throws: `PropertyVetoException` - when the attempt to set the property is vetoed by the `JInternalFrame`

### method:getTitle() [NONE]
- #### getTitle
      public String getTitle()
Returns the title of the `JInternalFrame`. Returns: a `String` containing this internal frame's title See Also: `setTitle(java.lang.String)`

### method:setTitle(java.lang.String) [NONE]
- #### setTitle
      public void setTitle(String title)
Sets the `JInternalFrame` title. `title` may have a `null` value. Parameters: `title` - the `String` to display in the title bar See Also: `getTitle()`

### method:setSelected(boolean) [NONE]
- #### setSelected
      public void setSelected(boolean selected)
                       throws PropertyVetoException
Selects or deselects the internal frame if it's showing. A `JInternalFrame` normally draws its title bar differently if it is the selected frame, which indicates to the user that this internal frame has the focus. When this method changes the state of the internal frame from deselected to selected, it fires an `InternalFrameEvent.INTERNAL_FRAME_ACTIVATED` event. If the change is from selected to deselected, an `InternalFrameEvent.INTERNAL_FRAME_DEACTIVATED` event is fired. Parameters: `selected` - a boolean, where `true` means this internal frame should become selected (currently active) and `false` means it should become deselected Throws: `PropertyVetoException` - when the attempt to set the property is vetoed by the `JInternalFrame` See Also: `Component.isShowing()`, `InternalFrameEvent.INTERNAL_FRAME_ACTIVATED`, `InternalFrameEvent.INTERNAL_FRAME_DEACTIVATED`

### method:isSelected() [NONE]
- #### isSelected
      public boolean isSelected()
Returns whether the `JInternalFrame` is the currently "selected" or active frame. Returns: `true` if this internal frame is currently selected (active) See Also: `setSelected(boolean)`

### method:setFrameIcon(javax.swing.Icon) [NONE]
- #### setFrameIcon
      public void setFrameIcon(Icon icon)
Sets an image to be displayed in the titlebar of this internal frame (usually in the top-left corner). Some look and feels might not support displaying an icon in the titlebar. This image is not the `desktopIcon` object, which is the image displayed in the `JDesktop` when this internal frame is iconified. Passing `null` to this function is valid, but the look and feel can choose the appropriate behavior for that situation, such as displaying no icon or a default icon for the look and feel. Parameters: `icon` - the `Icon` to display in the title bar See Also: `getFrameIcon()`

### method:getFrameIcon() [NONE]
- #### getFrameIcon
      public Icon getFrameIcon()
Returns the image displayed in the title bar of this internal frame (usually in the top-left corner). Returns: the `Icon` displayed in the title bar See Also: `setFrameIcon(javax.swing.Icon)`

### method:moveToFront() [NONE]
- #### moveToFront
      public void moveToFront()
Convenience method that moves this component to position 0 if its parent is a `JLayeredPane`.

### method:moveToBack() [NONE]
- #### moveToBack
      public void moveToBack()
Convenience method that moves this component to position -1 if its parent is a `JLayeredPane`.

### method:getLastCursor() [NONE]
- #### getLastCursor
      public Cursor getLastCursor()
Returns the last `Cursor` that was set by the `setCursor` method that is not a resizable `Cursor`. Returns: the last non-resizable `Cursor` Since: 1.6

### method:setCursor(java.awt.Cursor) [NONE]
- #### setCursor
      public void setCursor(Cursor cursor)
Sets the cursor image to the specified cursor. This cursor image is displayed when the `contains` method for this component returns true for the current cursor location, and this Component is visible, displayable, and enabled. Setting the cursor of a `Container` causes that cursor to be displayed within all of the container's subcomponents, except for those that have a non-`null` cursor. The method may have no visual effect if the Java platform implementation and/or the native system do not support changing the mouse cursor shape. Overrides: `setCursor` in class `Component` Parameters: `cursor` - One of the constants defined by the `Cursor` class; if this parameter is `null` then this component will inherit the cursor of its parent Since: 1.6 See Also: `Component.isEnabled()`, `Component.isShowing()`, `Component.getCursor()`, `Component.contains(int, int)` , `Toolkit.createCustomCursor(java.awt.Image, java.awt.Point, java.lang.String)` , `Cursor`

### method:setLayer(java.lang.Integer) [NONE]
- #### setLayer
      public void setLayer(Integer layer)
Convenience method for setting the layer attribute of this component. Parameters: `layer` - an `Integer` object specifying this frame's desktop layer See Also: `JLayeredPane`

### method:setLayer(int) [NONE]
- #### setLayer
      public void setLayer(int layer)
Convenience method for setting the layer attribute of this component. The method `setLayer(Integer)` should be used for layer values predefined in `JLayeredPane`. When using `setLayer(int)`, care must be taken not to accidentally clash with those values. Parameters: `layer` - an integer specifying this internal frame's desktop layer Since: 1.3 See Also: `setLayer(Integer)`, `JLayeredPane`

### method:getLayer() [NONE]
- #### getLayer
      public int getLayer()
Convenience method for getting the layer attribute of this component. Returns: an `Integer` object specifying this frame's desktop layer See Also: `JLayeredPane`

### method:getDesktopPane() [NONE]
- #### getDesktopPane
      public JDesktopPane getDesktopPane()
Convenience method that searches the ancestor hierarchy for a `JDesktop` instance. If `JInternalFrame` finds none, the `desktopIcon` tree is searched. Returns: the `JDesktopPane` this internal frame belongs to, or `null` if none is found

### method:setDesktopIcon(javax.swing.JInternalFrame.JDesktopIcon) [NONE]
- #### setDesktopIcon
      public void setDesktopIcon(JInternalFrame.JDesktopIcon d)
Sets the `JDesktopIcon` associated with this `JInternalFrame`. Parameters: `d` - the `JDesktopIcon` to display on the desktop See Also: `getDesktopIcon()`

### method:getDesktopIcon() [NONE]
- #### getDesktopIcon
      public JInternalFrame.JDesktopIcon getDesktopIcon()
Returns the `JDesktopIcon` used when this `JInternalFrame` is iconified. Returns: the `JDesktopIcon` displayed on the desktop See Also: `setDesktopIcon(javax.swing.JInternalFrame.JDesktopIcon)`

### method:getNormalBounds() [NONE]
- #### getNormalBounds
      public Rectangle getNormalBounds()
If the `JInternalFrame` is not in maximized state, returns `getBounds()`; otherwise, returns the bounds that the `JInternalFrame` would be restored to. Returns: a `Rectangle` containing the bounds of this frame when in the normal state Since: 1.3

### method:setNormalBounds(java.awt.Rectangle) [NONE]
- #### setNormalBounds
      public void setNormalBounds(Rectangle r)
Sets the normal bounds for this internal frame, the bounds that this internal frame would be restored to from its maximized state. This method is intended for use only by desktop managers. Parameters: `r` - the bounds that this internal frame should be restored to Since: 1.3

### method:getFocusOwner() [NONE]
- #### getFocusOwner
      public Component getFocusOwner()
If this `JInternalFrame` is active, returns the child that has focus. Otherwise, returns `null`. Returns: the component with focus, or `null` if no children have focus Since: 1.3

### method:getMostRecentFocusOwner() [NONE]
- #### getMostRecentFocusOwner
      public Component getMostRecentFocusOwner()
Returns the child component of this `JInternalFrame` that will receive the focus when this `JInternalFrame` is selected. If this `JInternalFrame` is currently selected, this method returns the same component as the `getFocusOwner` method. If this `JInternalFrame` is not selected, then the child component that most recently requested focus will be returned. If no child component has ever requested focus, then this `JInternalFrame`'s initial focusable component is returned. If no such child exists, then this `JInternalFrame`'s default component to focus is returned. Returns: the child component that will receive focus when this `JInternalFrame` is selected Since: 1.4 See Also: `getFocusOwner()`, `isSelected`

### method:restoreSubcomponentFocus() [NONE]
- #### restoreSubcomponentFocus
      public void restoreSubcomponentFocus()
Requests the internal frame to restore focus to the last subcomponent that had focus. This is used by the UI when the user selected this internal frame -- for example, by clicking on the title bar. Since: 1.3

### method:reshape(int, int, int, int) [NONE]
- #### reshape
      public void reshape(int x,
                          int y,
                          int width,
                          int height)
Moves and resizes this component. Unlike other components, this implementation also forces re-layout, so that frame decorations such as the title bar are always redisplayed. Overrides: `reshape` in class `JComponent` Parameters: `x` - an integer giving the component's new horizontal position measured in pixels from the left of its container `y` - an integer giving the component's new vertical position, measured in pixels from the bottom of its container `width` - an integer giving the component's new width in pixels `height` - an integer giving the component's new height in pixels See Also: `Component.setBounds(int, int, int, int)`

### method:addInternalFrameListener(javax.swing.event.InternalFrameListener) [NONE]
- #### addInternalFrameListener
      public void addInternalFrameListener(InternalFrameListener l)
Adds the specified listener to receive internal frame events from this internal frame. Parameters: `l` - the internal frame listener

### method:removeInternalFrameListener(javax.swing.event.InternalFrameListener) [NONE]
- #### removeInternalFrameListener
      public void removeInternalFrameListener(InternalFrameListener l)
Removes the specified internal frame listener so that it no longer receives internal frame events from this internal frame. Parameters: `l` - the internal frame listener

### method:getInternalFrameListeners() [NONE]
- #### getInternalFrameListeners
      public InternalFrameListener[] getInternalFrameListeners()
Returns an array of all the `InternalFrameListener`s added to this `JInternalFrame` with `addInternalFrameListener`. Returns: all of the `InternalFrameListener`s added or an empty array if no listeners have been added Since: 1.4 See Also: `addInternalFrameListener(javax.swing.event.InternalFrameListener)`

### method:fireInternalFrameEvent(int) [NONE]
- #### fireInternalFrameEvent
      protected void fireInternalFrameEvent(int id)
Fires an internal frame event. Parameters: `id` - the type of the event being fired; one of the following: `InternalFrameEvent.INTERNAL_FRAME_OPENED` `InternalFrameEvent.INTERNAL_FRAME_CLOSING` `InternalFrameEvent.INTERNAL_FRAME_CLOSED` `InternalFrameEvent.INTERNAL_FRAME_ICONIFIED` `InternalFrameEvent.INTERNAL_FRAME_DEICONIFIED` `InternalFrameEvent.INTERNAL_FRAME_ACTIVATED` `InternalFrameEvent.INTERNAL_FRAME_DEACTIVATED` If the event type is not one of the above, nothing happens.

### method:doDefaultCloseAction() [NONE]
- #### doDefaultCloseAction
      public void doDefaultCloseAction()
Fires an `INTERNAL_FRAME_CLOSING` event and then performs the action specified by the internal frame's default close operation. This method is typically invoked by the look-and-feel-implemented action handler for the internal frame's close button. Since: 1.3 See Also: `setDefaultCloseOperation(int)`, `InternalFrameEvent.INTERNAL_FRAME_CLOSING`

### method:setDefaultCloseOperation(int) [NONE]
- #### setDefaultCloseOperation
      public void setDefaultCloseOperation(int operation)
Sets the operation that will happen by default when the user initiates a "close" on this internal frame. The possible choices are: `DO_NOTHING_ON_CLOSE` Do nothing. This requires the program to handle the operation in the `windowClosing` method of a registered `InternalFrameListener` object. `HIDE_ON_CLOSE` Automatically make the internal frame invisible. `DISPOSE_ON_CLOSE` Automatically dispose of the internal frame. The default value is `DISPOSE_ON_CLOSE`. Before performing the specified close operation, the internal frame fires an `INTERNAL_FRAME_CLOSING` event. Parameters: `operation` - one of the following constants defined in `javax.swing.WindowConstants` (an interface implemented by `JInternalFrame`): `DO_NOTHING_ON_CLOSE`, `HIDE_ON_CLOSE`, or `DISPOSE_ON_CLOSE` See Also: `addInternalFrameListener(javax.swing.event.InternalFrameListener)`, `getDefaultCloseOperation()`, `JComponent.setVisible(boolean)`, `dispose()`, `InternalFrameEvent.INTERNAL_FRAME_CLOSING`

### method:getDefaultCloseOperation() [NONE]
- #### getDefaultCloseOperation
      public int getDefaultCloseOperation()
Returns the default operation that occurs when the user initiates a "close" on this internal frame. Returns: the operation that will occur when the user closes the internal frame See Also: `setDefaultCloseOperation(int)`

### method:pack() [NONE]
- #### pack
      public void pack()
Causes subcomponents of this `JInternalFrame` to be laid out at their preferred size. Internal frames that are iconized or maximized are first restored and then packed. If the internal frame is unable to be restored its state is not changed and will not be packed. See Also: `Window.pack()`

### method:show() [NONE]
- #### show
      public void show()
If the internal frame is not visible, brings the internal frame to the front, makes it visible, and attempts to select it. The first time the internal frame is made visible, this method also fires an `INTERNAL_FRAME_OPENED` event. This method does nothing if the internal frame is already visible. Invoking this method has the same result as invoking `setVisible(true)`. Overrides: `show` in class `Component` See Also: `moveToFront()`, `setSelected(boolean)`, `InternalFrameEvent.INTERNAL_FRAME_OPENED`, `JComponent.setVisible(boolean)`

### method:hide() [NONE]
- #### hide
      public void hide()
Description copied from class: `JComponent` Overrides: `hide` in class `JComponent`

### method:dispose() [NONE]
- #### dispose
      public void dispose()
Makes this internal frame invisible, unselected, and closed. If the frame is not already closed, this method fires an `INTERNAL_FRAME_CLOSED` event. The results of invoking this method are similar to `setClosed(true)`, but `dispose` always succeeds in closing the internal frame and does not fire an `INTERNAL_FRAME_CLOSING` event. See Also: `InternalFrameEvent.INTERNAL_FRAME_CLOSED`, `JComponent.setVisible(boolean)`, `setSelected(boolean)`, `setClosed(boolean)`

### method:toFront() [NONE]
- #### toFront
      public void toFront()
Brings this internal frame to the front. Places this internal frame at the top of the stacking order and makes the corresponding adjustment to other visible internal frames. See Also: `Window.toFront()`, `moveToFront()`

### method:toBack() [NONE]
- #### toBack
      public void toBack()
Sends this internal frame to the back. Places this internal frame at the bottom of the stacking order and makes the corresponding adjustment to other visible internal frames. See Also: `Window.toBack()`, `moveToBack()`

### method:setFocusCycleRoot(boolean) [NONE]
- #### setFocusCycleRoot
      public final void setFocusCycleRoot(boolean focusCycleRoot)
Does nothing because `JInternalFrame`s must always be roots of a focus traversal cycle. Overrides: `setFocusCycleRoot` in class `Container` Parameters: `focusCycleRoot` - this value is ignored Since: 1.4 See Also: `isFocusCycleRoot()`, `Container.setFocusTraversalPolicy(java.awt.FocusTraversalPolicy)`, `Container.getFocusTraversalPolicy()`

### method:isFocusCycleRoot() [NONE]
- #### isFocusCycleRoot
      public final boolean isFocusCycleRoot()
Always returns `true` because all `JInternalFrame`s must be roots of a focus traversal cycle. Overrides: `isFocusCycleRoot` in class `Container` Returns: `true` Since: 1.4 See Also: `setFocusCycleRoot(boolean)`, `Container.setFocusTraversalPolicy(java.awt.FocusTraversalPolicy)`, `Container.getFocusTraversalPolicy()`

### method:getFocusCycleRootAncestor() [NONE]
- #### getFocusCycleRootAncestor
      public final Container getFocusCycleRootAncestor()
Always returns `null` because `JInternalFrame`s must always be roots of a focus traversal cycle. Overrides: `getFocusCycleRootAncestor` in class `Component` Returns: `null` Since: 1.4 See Also: `Container.isFocusCycleRoot()`

### method:getWarningString() [NONE]
- #### getWarningString
      public final String getWarningString()
Gets the warning string that is displayed with this internal frame. Since an internal frame is always secure (since it's fully contained within a window that might need a warning string) this method always returns `null`. Returns: `null` See Also: `Window.getWarningString()`

### method:paramString() [NONE]
- #### paramString
      protected String paramString()
Returns a string representation of this `JInternalFrame`. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be `null`. Overrides: `paramString` in class `JComponent` Returns: a string representation of this `JInternalFrame`

### method:paintComponent(java.awt.Graphics) [NONE]
- #### paintComponent
      protected void paintComponent(Graphics g)
Overridden to allow optimized painting when the internal frame is being dragged. Overrides: `paintComponent` in class `JComponent` Parameters: `g` - the `Graphics` object to protect See Also: `JComponent.paint(java.awt.Graphics)`, `ComponentUI`

### method:getAccessibleContext() [NONE]
- #### getAccessibleContext
      public AccessibleContext getAccessibleContext()
Gets the `AccessibleContext` associated with this `JInternalFrame`. For internal frames, the `AccessibleContext` takes the form of an `AccessibleJInternalFrame` object. A new `AccessibleJInternalFrame` instance is created if necessary. Specified by: `getAccessibleContext` in interface `Accessible` Overrides: `getAccessibleContext` in class `Component` Returns: an `AccessibleJInternalFrame` that serves as the `AccessibleContext` of this `JInternalFrame` See Also: `JInternalFrame.AccessibleJInternalFrame`