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java.lang.Objectjava.awt.Component
java.awt.Container
java.awt.Window
java.awt.Dialog
javax.swing.JDialog
public class JDialog
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 conveniance add and its variants, remove and
 setLayout have been overridden to forward to the
 contentPane as necessary. This means you can write:
 
       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:
 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 JavaBeansTM
 has been added to the java.beans package.
 Please see XMLEncoder.
JOptionPane, 
JRootPane, 
RootPaneContainer| Nested Class Summary | |
|---|---|
| protected  class | JDialog.AccessibleJDialogThis class implements accessibility support for the JDialogclass. | 
| Nested classes/interfaces inherited from class java.awt.Dialog | 
|---|
| Dialog.AccessibleAWTDialog | 
| Nested classes/interfaces inherited from class java.awt.Window | 
|---|
| Window.AccessibleAWTWindow | 
| Nested classes/interfaces inherited from class java.awt.Container | 
|---|
| Container.AccessibleAWTContainer | 
| Nested classes/interfaces inherited from class java.awt.Component | 
|---|
| Component.AccessibleAWTComponent, Component.BltBufferStrategy, Component.FlipBufferStrategy | 
| Field Summary | |
|---|---|
| protected  AccessibleContext | accessibleContext | 
| protected  JRootPane | rootPane | 
| protected  boolean | rootPaneCheckingEnabledIf true then calls to addandsetLayoutwill be forwarded to thecontentPane. | 
| Fields inherited from class java.awt.Component | 
|---|
| BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT | 
| Fields inherited from interface javax.swing.WindowConstants | 
|---|
| DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, EXIT_ON_CLOSE, HIDE_ON_CLOSE | 
| Fields inherited from interface java.awt.image.ImageObserver | 
|---|
| ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH | 
| Constructor Summary | |
|---|---|
| JDialog()Creates a non-modal dialog without a title and without a specified Frameowner. | |
| JDialog(Dialog owner)Creates a non-modal dialog without a title with the specified Dialogas its owner. | |
| JDialog(Dialog owner,
        boolean modal)Creates a modal or non-modal dialog without a title and with the specified owner dialog. | |
| JDialog(Dialog owner,
        String title)Creates a non-modal dialog with the specified title and with the specified owner dialog. | |
| JDialog(Dialog owner,
        String title,
        boolean modal)Creates a modal or non-modal dialog with the specified title and the specified owner frame. | |
| JDialog(Dialog owner,
        String title,
        boolean modal,
        GraphicsConfiguration gc)Creates a modal or non-modal dialog with the specified title, owner Dialog, andGraphicsConfiguration. | |
| JDialog(Frame owner)Creates a non-modal dialog without a title with the specified Frameas its owner. | |
| JDialog(Frame owner,
        boolean modal)Creates a modal or non-modal dialog without a title and with the specified owner Frame. | |
| JDialog(Frame owner,
        String title)Creates a non-modal dialog with the specified title and with the specified owner frame. | |
| JDialog(Frame owner,
        String title,
        boolean modal)Creates a modal or non-modal dialog with the specified title and the specified owner Frame. | |
| JDialog(Frame owner,
        String title,
        boolean modal,
        GraphicsConfiguration gc)Creates a modal or non-modal dialog with the specified title, owner Frame, andGraphicsConfiguration. | |
| Method Summary | |
|---|---|
| protected  void | addImpl(Component comp,
        Object constraints,
        int index)Adds the specified child Component. | 
| protected  JRootPane | createRootPane()Called by the constructor methods to create the default rootPane. | 
| protected  void | dialogInit()Called by the constructors to init the JDialogproperly. | 
|  AccessibleContext | getAccessibleContext()Gets the AccessibleContext associated with this JDialog. | 
|  Container | getContentPane()Returns the contentPaneobject for this dialog. | 
|  int | getDefaultCloseOperation()Returns the operation which occurs when the user initiates a "close" on this dialog. | 
|  Component | getGlassPane()Returns the glassPaneobject for this dialog. | 
|  JMenuBar | getJMenuBar()Returns the menubar set on this dialog. | 
|  JLayeredPane | getLayeredPane()Returns the layeredPaneobject for this dialog. | 
|  JRootPane | getRootPane()Returns the rootPaneobject for this dialog. | 
| static boolean | isDefaultLookAndFeelDecorated()Returns true if newly created JDialogs should have their
 Window decorations provided by the current look and feel. | 
| protected  boolean | isRootPaneCheckingEnabled()Returns whether calls to addandsetLayoutare forwarded to thecontentPane. | 
| protected  String | paramString()Returns a string representation of this JDialog. | 
| protected  void | processWindowEvent(WindowEvent e)Handles window events depending on the state of the defaultCloseOperationproperty. | 
|  void | remove(Component comp)Removes the specified component from the container. | 
|  void | setContentPane(Container contentPane)Sets the contentPaneproperty. | 
|  void | setDefaultCloseOperation(int operation)Sets the operation which will happen by default when the user initiates a "close" on this dialog. | 
| static void | setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)Provides a hint as to whether or not newly created JDialogs
 should have their Window decorations (such as borders, widgets to
 close the window, title...) provided by the current look
 and feel. | 
|  void | setGlassPane(Component glassPane)Sets the glassPaneproperty. | 
|  void | setJMenuBar(JMenuBar menu)Sets the menubar for this dialog. | 
|  void | setLayeredPane(JLayeredPane layeredPane)Sets the layeredPaneproperty. | 
|  void | setLayout(LayoutManager manager)Sets the LayoutManager. | 
| protected  void | setRootPane(JRootPane root)Sets the rootPaneproperty. | 
| protected  void | setRootPaneCheckingEnabled(boolean enabled)Sets whether calls to addandsetLayoutare forwarded to thecontentPane. | 
|  void | update(Graphics g)Calls paint(g). | 
| Methods inherited from class java.awt.Dialog | 
|---|
| addNotify, getTitle, hide, isModal, isResizable, isUndecorated, setModal, setResizable, setTitle, setUndecorated, show | 
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait | 
| Field Detail | 
|---|
protected JRootPane rootPane
getRootPane(), 
setRootPane(javax.swing.JRootPane)protected boolean rootPaneCheckingEnabled
add and setLayout
 will be forwarded to the contentPane. This is initially
 false, but is set to true when the JDialog is constructed.
isRootPaneCheckingEnabled(), 
setRootPaneCheckingEnabled(boolean), 
RootPaneContainerprotected AccessibleContext accessibleContext
| Constructor Detail | 
|---|
public JDialog()
        throws HeadlessException
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.
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Frame owner)
        throws HeadlessException
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.
owner - the Frame from which the dialog is displayed
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Frame owner,
               boolean modal)
        throws HeadlessException
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.
owner - the Frame from which the dialog is displayedmodal - true for a modal dialog, false for one that allows
               others windows to be active at the same time
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Frame owner,
               String title)
        throws HeadlessException
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.
owner - the Frame from which the dialog is displayedtitle - the String to display in the dialog's
                        title bar
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Frame owner,
               String title,
               boolean modal)
        throws HeadlessException
Frame.  If owner
 is null, a shared, hidden frame will be set as the
 owner of this dialog.  All constructors defer to this one.
 
 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.
owner - the Frame from which the dialog is displayedtitle - the String to display in the dialog's
                        title barmodal - true for a modal dialog, false for one that allows
               other windows to be active at the same time
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Frame owner,
               String title,
               boolean modal,
               GraphicsConfiguration gc)
Frame, 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.
owner - the Frame from which the dialog is displayedtitle - the String to display in the dialog's
                  title barmodal - true for a modal dialog, false for one that allows
               other windows to be active at the same timegc - the GraphicsConfiguration 
 of the target screen device.  If gc is 
 null, the same
 GraphicsConfiguration as the owning Frame is used.
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Dialog owner)
        throws HeadlessException
Dialog as its owner.
 
 This constructor sets the component's locale property to the value 
 returned by JComponent.getDefaultLocale.
owner - the non-null Dialog from which the dialog is displayed
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Dialog owner,
               boolean modal)
        throws HeadlessException
 This constructor sets the component's locale property to the value 
 returned by JComponent.getDefaultLocale.
owner - the non-null Dialog from which the dialog is displayedmodal - true for a modal dialog, false for one that allows
               other windows to be active at the same time
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Dialog owner,
               String title)
        throws HeadlessException
 This constructor sets the component's locale property to the value 
 returned by JComponent.getDefaultLocale.
owner - the non-null Dialog from which the dialog is displayedtitle - the String to display in the dialog's
                        title bar
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Dialog owner,
               String title,
               boolean modal)
        throws HeadlessException
 This constructor sets the component's locale property to the value
 returned by JComponent.getDefaultLocale.
owner - the non-null Dialog from which the dialog is displayedtitle - the String to display in the dialog's
                        title barmodal - true for a modal dialog, false for one that allows
               other windows to be active at the same time
HeadlessException - if GraphicsEnvironment.isHeadless()
 returns true.GraphicsEnvironment.isHeadless(), 
JComponent.getDefaultLocale()
public JDialog(Dialog owner,
               String title,
               boolean modal,
               GraphicsConfiguration gc)
        throws HeadlessException
Dialog, 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.
owner - the Dialog from which the dialog is displayedtitle - the String to display in the dialog's
                        title barmodal - true for a modal dialog, false for one that allows
               other windows to be active at the same timegc - the GraphicsConfiguration 
 of the target screen device.  If gc is 
 null, the same
 GraphicsConfiguration as the owning Dialog is used.
HeadlessException - if GraphicsEnvironment.isHeadless()GraphicsEnvironment.isHeadless(), 
returns true.| Method Detail | 
|---|
protected void dialogInit()
JDialog properly.
protected JRootPane createRootPane()
rootPane.
protected void processWindowEvent(WindowEvent e)
defaultCloseOperation property.
processWindowEvent in class Windowe - the window eventsetDefaultCloseOperation(int)public void setDefaultCloseOperation(int operation)
DO_NOTHING_ON_CLOSE - do not do anything - require the
 program to handle the operation in the windowClosing
 method of a registered WindowListener object.
 HIDE_ON_CLOSE - automatically hide the dialog after
 invoking any registered WindowListener objects
 DISPOSE_ON_CLOSE - automatically hide and dispose the 
 dialog after invoking any registered WindowListener objects
 
 The value is set to HIDE_ON_CLOSE by default.
 
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.
Window.addWindowListener(java.awt.event.WindowListener), 
getDefaultCloseOperation()public int getDefaultCloseOperation()
setDefaultCloseOperation(int)public void update(Graphics g)
paint(g).  This method was overridden to 
 prevent an unnecessary call to clear the background.
update in class Containerg - the Graphics context in which to paintComponent.update(Graphics)public void setJMenuBar(JMenuBar menu)
menu - the menubar being placed in the dialoggetJMenuBar()public JMenuBar getJMenuBar()
setJMenuBar(javax.swing.JMenuBar)protected boolean isRootPaneCheckingEnabled()
add and 
 setLayout are forwarded to the contentPane.
add and setLayout 
         are fowarded; false otherwiseaddImpl(java.awt.Component, java.lang.Object, int), 
setLayout(java.awt.LayoutManager), 
setRootPaneCheckingEnabled(boolean), 
RootPaneContainerprotected void setRootPaneCheckingEnabled(boolean enabled)
add and 
 setLayout are forwarded to the contentPane.
enabled - true if add and setLayout
        are forwarded, false if they should operate directly on the
        JDialog.addImpl(java.awt.Component, java.lang.Object, int), 
setLayout(java.awt.LayoutManager), 
isRootPaneCheckingEnabled(), 
RootPaneContainer
protected void addImpl(Component comp,
                       Object constraints,
                       int index)
Component.
 This method is overridden to conditionally forwad calls to the
 contentPane.
 By default, children are added to the contentPane instead
 of the frame, refer to RootPaneContainer for
 details.
addImpl in class Containercomp - the component to be enhancedconstraints - the constraints to be respectedindex - the index
IllegalArgumentException - if index is invalid
IllegalArgumentException - if adding the container's parent
                        to itself
IllegalArgumentException - if adding a window to a containersetRootPaneCheckingEnabled(boolean), 
RootPaneContainerpublic void remove(Component comp)
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.
remove in class Containercomp - the component to be removed
NullPointerException - if comp is nullContainer.add(java.awt.Component), 
RootPaneContainerpublic void setLayout(LayoutManager manager)
LayoutManager.
 Overridden to conditionally forward the call to the
 contentPane.
 Refer to RootPaneContainer for
 more information.
setLayout in class Containermanager - the LayoutManagersetRootPaneCheckingEnabled(boolean), 
RootPaneContainerpublic JRootPane getRootPane()
rootPane object for this dialog.
getRootPane in interface RootPaneContainersetRootPane(javax.swing.JRootPane), 
RootPaneContainer.getRootPane()protected void setRootPane(JRootPane root)
rootPane property. 
 This method is called by the constructor.
root - the rootPane object for this dialoggetRootPane()public Container getContentPane()
contentPane object for this dialog.
getContentPane in interface RootPaneContainercontentPane propertysetContentPane(java.awt.Container), 
RootPaneContainer.getContentPane()public void setContentPane(Container contentPane)
contentPane property. 
 This method is called by the constructor.
 
 Swing's painting architecture requires an opaque JComponent
 in the containment hiearchy. This is typically provided by the
 content pane. If you replace the content pane it is recommended you
 replace it with an opaque JComponent.
setContentPane in interface RootPaneContainercontentPane - the contentPane object for this dialog
IllegalComponentStateException - (a runtime
            exception) if the content pane parameter is nullJRootPane, 
getContentPane(), 
RootPaneContainer.setContentPane(java.awt.Container)public JLayeredPane getLayeredPane()
layeredPane object for this dialog.
getLayeredPane in interface RootPaneContainerlayeredPane propertysetLayeredPane(javax.swing.JLayeredPane), 
RootPaneContainer.getLayeredPane()public void setLayeredPane(JLayeredPane layeredPane)
layeredPane property.  
 This method is called by the constructor.
setLayeredPane in interface RootPaneContainerlayeredPane - the new layeredPane property
IllegalComponentStateException - (a runtime
            exception) if the layered pane parameter is nullgetLayeredPane(), 
RootPaneContainer.setLayeredPane(javax.swing.JLayeredPane)public Component getGlassPane()
glassPane object for this dialog.
getGlassPane in interface RootPaneContainerglassPane propertysetGlassPane(java.awt.Component), 
RootPaneContainer.getGlassPane()public void setGlassPane(Component glassPane)
glassPane property. 
 This method is called by the constructor.
setGlassPane in interface RootPaneContainerglassPane - the glassPane object for this dialoggetGlassPane(), 
RootPaneContainer.setGlassPane(java.awt.Component)public static void setDefaultLookAndFeelDecorated(boolean defaultLookAndFeelDecorated)
JDialogs
 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 JDialogs will have their
 Window decorations provided by the current LookAndFeel.
 Otherwise, newly created JDialogs 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);
 
defaultLookAndFeelDecorated - A hint as to whether or not current
        look and feel should provide window decorationsLookAndFeel.getSupportsWindowDecorations()public static boolean isDefaultLookAndFeelDecorated()
JDialogs 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.
protected String paramString()
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.
paramString in class DialogJDialog.public AccessibleContext getAccessibleContext()
getAccessibleContext in interface AccessiblegetAccessibleContext in class Dialog| 
 | JavaTM 2 Platform Standard Ed. 5.0 | |||||||||
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Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.