Package Summary Overview Summary

### class:JDialog [NONE]
- All Implemented Interfaces: ImageObserver, MenuContainer, Serializable, Accessible, RootPaneContainer, WindowConstants
      public class JDialog
      extends Dialog
      implements WindowConstants, Accessible, RootPaneContainer
  The main class for creating a dialog window. You can use this class to create a custom dialog, or invoke the many class methods in `JOptionPane` to create a variety of standard dialogs. For information about creating dialogs, see The Java Tutorial section How to Make Dialogs . The `JDialog` component contains a `JRootPane` as its only child. The `contentPane` should be the parent of any children of the `JDialog`. 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 a dialog as follows:
             dialog.add(child);
And the child will be added to the contentPane. The `contentPane` is always non-`null`. Attempting to set it to `null` generates an exception. The default `contentPane` has a `BorderLayout` manager set on it. Refer to `RootPaneContainer` for details on adding, removing and setting the `LayoutManager` of a `JDialog`. Please see the `JRootPane` documentation for a complete description of the `contentPane`, `glassPane`, and `layeredPane` components. In a multi-screen environment, you can create a `JDialog` on a different screen device than its owner. See `Frame` for more information. 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: `JOptionPane`, `JRootPane`, `RootPaneContainer`

### field:rootPane [NONE]
- #### rootPane
      protected JRootPane rootPane
See Also: `getRootPane()`, `setRootPane(javax.swing.JRootPane)`

### 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 `JDialog` is constructed. See Also: `isRootPaneCheckingEnabled()`, `setRootPaneCheckingEnabled(boolean)`, `RootPaneContainer`

### field:accessibleContext [NONE]
- #### accessibleContext
      protected AccessibleContext accessibleContext
`AccessibleContext` associated with this `JDialog`

### constructor:JDialog() [NONE]
- #### JDialog
      public JDialog()
Creates a modeless dialog without a title and without a specified `Frame` owner. A shared, hidden frame will be set as the owner of the dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Frame) [NONE]
- #### JDialog
      public JDialog(Frame owner)
Creates a modeless dialog with the specified `Frame` as its owner and an empty title. If `owner` is `null`, a shared, hidden frame will be set as the owner of the dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Parameters: `owner` - the `Frame` from which the dialog is displayed Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Frame, boolean) [NONE]
- #### JDialog
      public JDialog(Frame owner,
                     boolean modal)
Creates a dialog with an empty title and the specified modality and `Frame` as its owner. If `owner` is `null`, a shared, hidden frame will be set as the owner of the dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Parameters: `owner` - the `Frame` from which the dialog is displayed `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE`, otherwise the dialog is modeless. Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Frame, java.lang.String) [NONE]
- #### JDialog
      public JDialog(Frame owner,
                     String title)
Creates a modeless dialog with the specified title and with the specified owner frame. If `owner` is `null`, a shared, hidden frame will be set as the owner of the dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Parameters: `owner` - the `Frame` from which the dialog is displayed `title` - the `String` to display in the dialog's title bar Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Frame, java.lang.String, boolean) [NONE]
- #### JDialog
      public JDialog(Frame owner,
                     String title,
                     boolean modal)
Creates a dialog with the specified title, owner `Frame` and modality. If `owner` is `null`, a shared, hidden frame will be set as the owner of this dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: Any popup components (`JComboBox`, `JPopupMenu`, `JMenuBar`) created within a modal dialog will be forced to be lightweight. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Parameters: `owner` - the `Frame` from which the dialog is displayed `title` - the `String` to display in the dialog's title bar `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE` otherwise the dialog is modeless Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `Dialog.ModalityType`, `Dialog.ModalityType.MODELESS`, `Dialog.DEFAULT_MODALITY_TYPE`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Frame, java.lang.String, boolean, java.awt.GraphicsConfiguration) [NONE]
- #### JDialog
      public JDialog(Frame owner,
                     String title,
                     boolean modal,
                     GraphicsConfiguration gc)
Creates a dialog with the specified title, owner `Frame`, modality and `GraphicsConfiguration`. If `owner` is `null`, a shared, hidden frame will be set as the owner of this dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. NOTE: Any popup components (`JComboBox`, `JPopupMenu`, `JMenuBar`) created within a modal dialog will be forced to be lightweight. NOTE: This constructor does not allow you to create an unowned `JDialog`. To create an unowned `JDialog` you must use either the `JDialog(Window)` or `JDialog(Dialog)` constructor with an argument of `null`. Parameters: `owner` - the `Frame` from which the dialog is displayed `title` - the `String` to display in the dialog's title bar `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE`, otherwise the dialog is modeless. `gc` - the `GraphicsConfiguration` of the target screen device; if `null`, the default system `GraphicsConfiguration` is assumed Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. Since: 1.4 See Also: `Dialog.ModalityType`, `Dialog.ModalityType.MODELESS`, `Dialog.DEFAULT_MODALITY_TYPE`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Dialog) [NONE]
- #### JDialog
      public JDialog(Dialog owner)
Creates a modeless dialog with the specified `Dialog` as its owner and an empty title. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the owner `Dialog` from which the dialog is displayed or `null` if this dialog has no owner Throws: `HeadlessException` - `if GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Dialog, boolean) [NONE]
- #### JDialog
      public JDialog(Dialog owner,
                     boolean modal)
Creates a dialog with an empty title and the specified modality and `Dialog` as its owner. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the owner `Dialog` from which the dialog is displayed or `null` if this dialog has no owner `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE`, otherwise the dialog is modeless. Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `Dialog.ModalityType`, `Dialog.ModalityType.MODELESS`, `Dialog.DEFAULT_MODALITY_TYPE`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Dialog, java.lang.String) [NONE]
- #### JDialog
      public JDialog(Dialog owner,
                     String title)
Creates a modeless dialog with the specified title and with the specified owner dialog. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the owner `Dialog` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Dialog, java.lang.String, boolean) [NONE]
- #### JDialog
      public JDialog(Dialog owner,
                     String title,
                     boolean modal)
Creates a dialog with the specified title, modality and the specified owner `Dialog`. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the owner `Dialog` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE`, otherwise the dialog is modeless Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. See Also: `Dialog.ModalityType`, `Dialog.ModalityType.MODELESS`, `Dialog.DEFAULT_MODALITY_TYPE`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Dialog, java.lang.String, boolean, java.awt.GraphicsConfiguration) [NONE]
- #### JDialog
      public JDialog(Dialog owner,
                     String title,
                     boolean modal,
                     GraphicsConfiguration gc)
Creates a dialog with the specified title, owner `Dialog`, modality and `GraphicsConfiguration`. NOTE: Any popup components (`JComboBox`, `JPopupMenu`, `JMenuBar`) created within a modal dialog will be forced to be lightweight. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the owner `Dialog` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar `modal` - specifies whether dialog blocks user input to other top-level windows when shown. If `true`, the modality type property is set to `DEFAULT_MODALITY_TYPE`, otherwise the dialog is modeless `gc` - the `GraphicsConfiguration` of the target screen device; if `null`, the default system `GraphicsConfiguration` is assumed Throws: `HeadlessException` - if `GraphicsEnvironment.isHeadless()` returns `true`. Since: 1.4 See Also: `Dialog.ModalityType`, `Dialog.ModalityType.MODELESS`, `Dialog.DEFAULT_MODALITY_TYPE`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Window) [NONE]
- #### JDialog
      public JDialog(Window owner)
Creates a modeless dialog with the specified `Window` as its owner and an empty title. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the `Window` from which the dialog is displayed or `null` if this dialog has no owner Throws: `IllegalArgumentException` - if the `owner` is not an instance of `Dialog` or `Frame` `IllegalArgumentException` - if the `owner`'s `GraphicsConfiguration` is not from a screen device `HeadlessException` - when `GraphicsEnvironment.isHeadless()` returns `true` Since: 1.6 See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Window, java.awt.Dialog.ModalityType) [NONE]
- #### JDialog
      public JDialog(Window owner,
                     Dialog.ModalityType modalityType)
Creates a dialog with an empty title and the specified modality and `Window` as its owner. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the `Window` from which the dialog is displayed or `null` if this dialog has no owner `modalityType` - specifies whether dialog blocks input to other windows when shown. `null` value and unsupported modality types are equivalent to `MODELESS` Throws: `IllegalArgumentException` - if the `owner` is not an instance of `Dialog` or `Frame` `IllegalArgumentException` - if the `owner`'s `GraphicsConfiguration` is not from a screen device `HeadlessException` - when `GraphicsEnvironment.isHeadless()` returns `true` `SecurityException` - if the calling thread does not have permission to create modal dialogs with the given `modalityType` Since: 1.6 See Also: `Dialog.ModalityType`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Window, java.lang.String) [NONE]
- #### JDialog
      public JDialog(Window owner,
                     String title)
Creates a modeless dialog with the specified title and owner `Window`. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the `Window` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar or `null` if the dialog has no title Throws: `IllegalArgumentException` - if the `owner` is not an instance of `Dialog` or `Frame` `IllegalArgumentException` - if the `owner`'s `GraphicsConfiguration` is not from a screen device `HeadlessException` - when `GraphicsEnvironment.isHeadless()` returns `true` Since: 1.6 See Also: `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Window, java.lang.String, java.awt.Dialog.ModalityType) [NONE]
- #### JDialog
      public JDialog(Window owner,
                     String title,
                     Dialog.ModalityType modalityType)
Creates a dialog with the specified title, owner `Window` and modality. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the `Window` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar or `null` if the dialog has no title `modalityType` - specifies whether dialog blocks input to other windows when shown. `null` value and unsupported modality types are equivalent to `MODELESS` Throws: `IllegalArgumentException` - if the `owner` is not an instance of `Dialog` or `Frame` `IllegalArgumentException` - if the `owner`'s `GraphicsConfiguration` is not from a screen device `HeadlessException` - when `GraphicsEnvironment.isHeadless()` returns `true` `SecurityException` - if the calling thread does not have permission to create modal dialogs with the given `modalityType` Since: 1.6 See Also: `Dialog.ModalityType`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### constructor:JDialog(java.awt.Window, java.lang.String, java.awt.Dialog.ModalityType, java.awt.GraphicsConfiguration) [NONE]
- #### JDialog
      public JDialog(Window owner,
                     String title,
                     Dialog.ModalityType modalityType,
                     GraphicsConfiguration gc)
Creates a dialog with the specified title, owner `Window`, modality and `GraphicsConfiguration`. NOTE: Any popup components (`JComboBox`, `JPopupMenu`, `JMenuBar`) created within a modal dialog will be forced to be lightweight. This constructor sets the component's locale property to the value returned by `JComponent.getDefaultLocale`. Parameters: `owner` - the `Window` from which the dialog is displayed or `null` if this dialog has no owner `title` - the `String` to display in the dialog's title bar or `null` if the dialog has no title `modalityType` - specifies whether dialog blocks input to other windows when shown. `null` value and unsupported modality types are equivalent to `MODELESS` `gc` - the `GraphicsConfiguration` of the target screen device; if `null`, the default system `GraphicsConfiguration` is assumed Throws: `IllegalArgumentException` - if the `owner` is not an instance of `Dialog` or `Frame` `IllegalArgumentException` - if the `owner`'s `GraphicsConfiguration` is not from a screen device `HeadlessException` - when `GraphicsEnvironment.isHeadless()` returns `true` `SecurityException` - if the calling thread does not have permission to create modal dialogs with the given `modalityType` Since: 1.6 See Also: `Dialog.ModalityType`, `Dialog.setModal(boolean)`, `Dialog.setModalityType(java.awt.Dialog.ModalityType)`, `GraphicsEnvironment.isHeadless()`, `JComponent.getDefaultLocale()`

### method:dialogInit() [NONE]
- #### dialogInit
      protected void dialogInit()
Called by the constructors to init the `JDialog` properly.

### method:createRootPane() [NONE]
- #### createRootPane
      protected JRootPane createRootPane()
Called by the constructor methods to create the default `rootPane`. Returns: a new `JRootPane`

### method:processWindowEvent(java.awt.event.WindowEvent) [NONE]
- #### processWindowEvent
      protected void processWindowEvent(WindowEvent e)
Handles window events depending on the state of the `defaultCloseOperation` property. Overrides: `processWindowEvent` in class `Window` Parameters: `e` - the window event See Also: `setDefaultCloseOperation(int)`

### 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 dialog. You must specify one of the following choices: `DO_NOTHING_ON_CLOSE` (defined in `WindowConstants`): Don't do anything; require the program to handle the operation in the `windowClosing` method of a registered `WindowListener` object. `HIDE_ON_CLOSE` (defined in `WindowConstants`): Automatically hide the dialog after invoking any registered `WindowListener` objects. `DISPOSE_ON_CLOSE` (defined in `WindowConstants`): Automatically hide and dispose the dialog after invoking any registered `WindowListener` objects. The value is set to `HIDE_ON_CLOSE` by default. Changes to the value of this property cause the firing of a property change event, with property name "defaultCloseOperation". Note: When the last displayable window within the Java virtual machine (VM) is disposed of, the VM may terminate. See AWT Threading Issues for more information. Parameters: `operation` - the operation which should be performed when the user closes the dialog Throws: `IllegalArgumentException` - if defaultCloseOperation value isn't one of the above valid values See Also: `Window.addWindowListener(java.awt.event.WindowListener)`, `getDefaultCloseOperation()`, `WindowConstants`

### method:getDefaultCloseOperation() [NONE]
- #### getDefaultCloseOperation
      public int getDefaultCloseOperation()
Returns the operation which occurs when the user initiates a "close" on this dialog. Returns: an integer indicating the window-close operation See Also: `setDefaultCloseOperation(int)`

### method:setTransferHandler(javax.swing.TransferHandler) [NONE]
- #### setTransferHandler
      public void setTransferHandler(TransferHandler newHandler)
Sets the `transferHandler` property, which is a mechanism to support transfer of data into this component. Use `null` if the component does not support data transfer operations. If the system property `suppressSwingDropSupport` is `false` (the default) and the current drop target on this component is either `null` or not a user-set drop target, this method will change the drop target as follows: If `newHandler` is `null` it will clear the drop target. If not `null` it will install a new `DropTarget`. Note: When used with `JDialog`, `TransferHandler` only provides data import capability, as the data export related methods are currently typed to `JComponent`. Please see How to Use Drag and Drop and Data Transfer , a section in The Java Tutorial , for more information. Parameters: `newHandler` - the new `TransferHandler` Since: 1.6 See Also: `TransferHandler`, `getTransferHandler()`, `Component.setDropTarget(java.awt.dnd.DropTarget)`

### method:getTransferHandler() [NONE]
- #### getTransferHandler
      public TransferHandler getTransferHandler()
Gets the `transferHandler` property. Returns: the value of the `transferHandler` property Since: 1.6 See Also: `TransferHandler`, `setTransferHandler(javax.swing.TransferHandler)`

### method:update(java.awt.Graphics) [NONE]
- #### update
      public void update(Graphics g)
Calls `paint(g)`. This method was overridden to prevent an unnecessary call to clear the background. Overrides: `update` in class `Container` Parameters: `g` - the `Graphics` context in which to paint See Also: `Component.update(Graphics)`

### method:setJMenuBar(javax.swing.JMenuBar) [NONE]
- #### setJMenuBar
      public void setJMenuBar(JMenuBar menu)
Sets the menubar for this dialog. Parameters: `menu` - the menubar being placed in the dialog See Also: `getJMenuBar()`

### method:getJMenuBar() [NONE]
- #### getJMenuBar
      public JMenuBar getJMenuBar()
Returns the menubar set on this dialog. Returns: the menubar set on this dialog See Also: `setJMenuBar(javax.swing.JMenuBar)`

### 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 `JDialog`. 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 the `rootPane`, this will forward the call to the `contentPane`. This will do nothing if `comp` is not a child of the `JDialog` or `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)
Sets the `LayoutManager`. 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)`, `RootPaneContainer`

### method:getRootPane() [NONE]
- #### getRootPane
      public JRootPane getRootPane()
Returns the `rootPane` object for this dialog. Specified by: `getRootPane` in interface `RootPaneContainer` Returns: this components single JRootPane child. See Also: `setRootPane(javax.swing.JRootPane)`, `RootPaneContainer.getRootPane()`

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

### method:getContentPane() [NONE]
- #### getContentPane
      public Container getContentPane()
Returns the `contentPane` object for this dialog. Specified by: `getContentPane` in interface `RootPaneContainer` Returns: the `contentPane` property See Also: `setContentPane(java.awt.Container)`, `RootPaneContainer.getContentPane()`

### method:setContentPane(java.awt.Container) [NONE]
- #### setContentPane
      public void setContentPane(Container contentPane)
Sets the `contentPane` property. This method is called by the constructor. Swing's painting architecture requires an opaque `JComponent` in the containment hierarchy. This is typically provided by the content pane. If you replace the content pane it is recommended you replace it with an opaque `JComponent`. Specified by: `setContentPane` in interface `RootPaneContainer` Parameters: `contentPane` - the `contentPane` object for this dialog Throws: `IllegalComponentStateException` - (a runtime exception) if the content pane parameter is `null` See Also: `JRootPane`, `getContentPane()`, `RootPaneContainer.setContentPane(java.awt.Container)`

### method:getLayeredPane() [NONE]
- #### getLayeredPane
      public JLayeredPane getLayeredPane()
Returns the `layeredPane` object for this dialog. Specified by: `getLayeredPane` in interface `RootPaneContainer` Returns: the `layeredPane` property See Also: `setLayeredPane(javax.swing.JLayeredPane)`, `RootPaneContainer.getLayeredPane()`

### method:setLayeredPane(javax.swing.JLayeredPane) [NONE]
- #### setLayeredPane
      public void setLayeredPane(JLayeredPane layeredPane)
Sets the `layeredPane` property. This method is called by the constructor. Specified by: `setLayeredPane` in interface `RootPaneContainer` Parameters: `layeredPane` - the new `layeredPane` property Throws: `IllegalComponentStateException` - (a runtime exception) if the layered pane parameter is null See Also: `getLayeredPane()`, `RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)`

### method:getGlassPane() [NONE]
- #### getGlassPane
      public Component getGlassPane()
Returns the `glassPane` object for this dialog. Specified by: `getGlassPane` in interface `RootPaneContainer` Returns: the `glassPane` property See Also: `setGlassPane(java.awt.Component)`, `RootPaneContainer.getGlassPane()`

### method:setGlassPane(java.awt.Component) [NONE]
- #### setGlassPane
      public void setGlassPane(Component glassPane)
Sets the `glassPane` property. This method is called by the constructor. Specified by: `setGlassPane` in interface `RootPaneContainer` Parameters: `glassPane` - the `glassPane` object for this dialog See Also: `getGlassPane()`, `RootPaneContainer.setGlassPane(java.awt.Component)`

### method:getGraphics() [NONE]
- #### getGraphics
      public Graphics getGraphics()
Creates a graphics context for this component. This method will return `null` if this component is currently not displayable. Overrides: `getGraphics` in class `Component` Returns: a graphics context for this component, or `null` if it has none Since: 1.6 See Also: `Component.paint(java.awt.Graphics)`

### method:repaint(long, int, int, int, int) [NONE]
- #### repaint
      public void repaint(long time,
                          int x,
                          int y,
                          int width,
                          int height)
Repaints the specified rectangle of this component within `time` milliseconds. Refer to `RepaintManager` for details on how the repaint is handled. Overrides: `repaint` in class `Component` Parameters: `time` - maximum time in milliseconds before update `x` - the x coordinate `y` - the y coordinate `width` - the width `height` - the height Since: 1.6 See Also: `RepaintManager`

### method:setDefaultLookAndFeelDecorated(boolean) [NONE]
- #### setDefaultLookAndFeelDecorated
      public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)
  Provides a hint as to whether or not newly created `JDialog`s should have their Window decorations (such as borders, widgets to close the window, title...) provided by the current look and feel. If `defaultLookAndFeelDecorated` is true, the current `LookAndFeel` supports providing window decorations, and the current window manager supports undecorated windows, then newly created `JDialog`s will have their Window decorations provided by the current `LookAndFeel`. Otherwise, newly created `JDialog`s will have their Window decorations provided by the current window manager. You can get the same effect on a single JDialog by doing the following:
          JDialog dialog = new JDialog();
          dialog.setUndecorated(true);
          dialog.getRootPane().setWindowDecorationStyle(JRootPane.PLAIN_DIALOG);
Parameters: `defaultLookAndFeelDecorated` - A hint as to whether or not current look and feel should provide window decorations Since: 1.4 See Also: `LookAndFeel.getSupportsWindowDecorations()`

### method:isDefaultLookAndFeelDecorated() [NONE]
- #### isDefaultLookAndFeelDecorated
      public static boolean isDefaultLookAndFeelDecorated()
Returns true if newly created `JDialog`s should have their Window decorations provided by the current look and feel. This is only a hint, as certain look and feels may not support this feature. Returns: true if look and feel should provide Window decorations. Since: 1.4

### method:paramString() [NONE]
- #### paramString
      protected String paramString()
Returns a string representation of this `JDialog`. 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 `Dialog` Returns: a string representation of this `JDialog`.

### method:getAccessibleContext() [NONE]
- #### getAccessibleContext
      public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this JDialog. For JDialogs, the AccessibleContext takes the form of an AccessibleJDialog. A new AccessibleJDialog instance is created if necessary. Specified by: `getAccessibleContext` in interface `Accessible` Overrides: `getAccessibleContext` in class `Dialog` Returns: an AccessibleJDialog that serves as the AccessibleContext of this JDialog