public class JOptionPane extends JComponent implements Accessible
JOptionPane makes it easy to pop up a standard dialog box that
 prompts users for a value or informs them of something.
 For information about using JOptionPane, see
 How to Make Dialogs,
 a section in The Java Tutorial.
 
 While the JOptionPane
 class may appear complex because of the large number of methods, almost
 all uses of this class are one-line calls to one of the static
 showXxxDialog methods shown below:
 
Each of these methods also comes in a
Method Name Description showConfirmDialog Asks a confirming question, like yes/no/cancel. showInputDialog Prompt for some input. showMessageDialog Tell the user about something that has happened. showOptionDialog The Grand Unification of the above three. 
showInternalXXX
 flavor, which uses an internal frame to hold the dialog box (see
 JInternalFrame).
 Multiple convenience methods have also been defined -- overloaded
 versions of the basic methods that use different parameter lists.
 
 All dialogs are modal. Each showXxxDialog method blocks
 the caller until the user's interaction is complete.
 
| icon | message | 
| input value | |
| option buttons | |
ComponentOrientation property.
 
 Parameters:
 The parameters to these methods follow consistent patterns:
 
- parentComponent
- Defines the
Componentthat is to be the parent of this dialog box. It is used in two ways: theFramethat contains it is used as theFrameparent for the dialog box, and its screen coordinates are used in the placement of the dialog box. In general, the dialog box is placed just below the component. This parameter may benull, in which case a defaultFrameis used as the parent, and the dialog will be centered on the screen (depending on the L&F).- message
- A descriptive message to be placed in the dialog box. In the most common usage, message is just a
StringorStringconstant. However, the type of this parameter is actuallyObject. Its interpretation depends on its type:
- Object[]
- An array of objects is interpreted as a series of messages (one per object) arranged in a vertical stack. The interpretation is recursive -- each object in the array is interpreted according to its type.
- Component
- The
Componentis displayed in the dialog.- Icon
- The
Iconis wrapped in aJLabeland displayed in the dialog.- others
- The object is converted to a
Stringby calling itstoStringmethod. The result is wrapped in aJLabeland displayed.- messageType
- Defines the style of the message. The Look and Feel manager may lay out the dialog differently depending on this value, and will often provide a default icon. The possible values are:
ERROR_MESSAGE
INFORMATION_MESSAGE
WARNING_MESSAGE
QUESTION_MESSAGE
PLAIN_MESSAGE- optionType
- Defines the set of option buttons that appear at the bottom of the dialog box:
You aren't limited to this set of option buttons. You can provide any buttons you want using the options parameter.
DEFAULT_OPTION
YES_NO_OPTION
YES_NO_CANCEL_OPTION
OK_CANCEL_OPTION- options
- A more detailed description of the set of option buttons that will appear at the bottom of the dialog box. The usual value for the options parameter is an array of
Strings. But the parameter type is an array ofObjects. A button is created for each object depending on its type:
- Component
- The component is added to the button row directly.
- Icon
- A
JButtonis created with this as its label.- other
- The
Objectis converted to a string using itstoStringmethod and the result is used to label aJButton.- icon
- A decorative icon to be placed in the dialog box. A default value for this is determined by the
messageTypeparameter.- title
- The title for the dialog box.
- initialValue
- The default selection (input value).
 When the selection is changed, setValue is invoked,
 which generates a PropertyChangeEvent.
 
 If a JOptionPane has configured to all input
 setWantsInput
 the bound property JOptionPane.INPUT_VALUE_PROPERTY
  can also be listened
 to, to determine when the user has input or selected a value.
 
 When one of the showXxxDialog methods returns an integer,
 the possible values are:
 
YES_OPTION
 NO_OPTION
 CANCEL_OPTION
 OK_OPTION
 CLOSED_OPTION
 
 JOptionPane.showMessageDialog(null, "alert", "alert", JOptionPane.ERROR_MESSAGE);
 
 
 JOptionPane.showInternalMessageDialog(frame, "information",
             "information", JOptionPane.INFORMATION_MESSAGE);
 
 JOptionPane.showConfirmDialog(null,
             "choose one", "choose one", JOptionPane.YES_NO_OPTION);
 
 JOptionPane.showInternalConfirmDialog(frame,
             "please choose one", "information",
             JOptionPane.YES_NO_CANCEL_OPTION, JOptionPane.INFORMATION_MESSAGE);
 
 
 Object[] options = { "OK", "CANCEL" };
 JOptionPane.showOptionDialog(null, "Click OK to continue", "Warning",
             JOptionPane.DEFAULT_OPTION, JOptionPane.WARNING_MESSAGE,
             null, options, options[0]);
 
 
 String inputValue = JOptionPane.showInputDialog("Please input a value");
 
 
 Object[] possibleValues = { "First", "Second", "Third" };
 Object selectedValue = JOptionPane.showInputDialog(null,
             "Choose one", "Input",
             JOptionPane.INFORMATION_MESSAGE, null,
             possibleValues, possibleValues[0]);
 
JOptionPane directly, the
 standard pattern is roughly as follows:
 
     JOptionPane pane = new JOptionPane(arguments);
     pane.set.Xxxx(...); // Configure
     JDialog dialog = pane.createDialog(parentComponent, title);
     dialog.show();
     Object selectedValue = pane.getValue();
     if(selectedValue == null)
       return CLOSED_OPTION;
     //If there is not an array of option buttons:
     if(options == null) {
       if(selectedValue instanceof Integer)
          return ((Integer)selectedValue).intValue();
       return CLOSED_OPTION;
     }
     //If there is an array of option buttons:
     for(int counter = 0, maxCounter = options.length;
        counter < maxCounter; counter++) {
        if(options[counter].equals(selectedValue))
        return counter;
     }
     return CLOSED_OPTION;
 
 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.
JInternalFrame| Modifier and Type | Class and Description | 
|---|---|
| protected class  | JOptionPane.AccessibleJOptionPaneThis class implements accessibility support for the
  JOptionPaneclass. | 
JComponent.AccessibleJComponentContainer.AccessibleAWTContainerComponent.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy| Modifier and Type | Field and Description | 
|---|---|
| static int | CANCEL_OPTIONReturn value from class method if CANCEL is chosen. | 
| static int | CLOSED_OPTIONReturn value from class method if user closes window without selecting
 anything, more than likely this should be treated as either a
  CANCEL_OPTIONorNO_OPTION. | 
| static int | DEFAULT_OPTIONType meaning Look and Feel should not supply any options -- only
 use the options from the  JOptionPane. | 
| static int | ERROR_MESSAGEUsed for error messages. | 
| protected Icon | iconIcon used in pane. | 
| static String | ICON_PROPERTYBound property name for  icon. | 
| static int | INFORMATION_MESSAGEUsed for information messages. | 
| static String | INITIAL_SELECTION_VALUE_PROPERTYBound property name for  initialSelectionValue. | 
| static String | INITIAL_VALUE_PROPERTYBound property name for  initialValue. | 
| protected Object | initialSelectionValueInitial value to select in  selectionValues. | 
| protected Object | initialValueValue that should be initially selected in  options. | 
| static String | INPUT_VALUE_PROPERTYBound property name for  inputValue. | 
| protected Object | inputValueValue the user has input. | 
| protected Object | messageMessage to display. | 
| static String | MESSAGE_PROPERTYBound property name for  message. | 
| static String | MESSAGE_TYPE_PROPERTYBound property name for  type. | 
| protected int | messageTypeMessage type. | 
| static int | NO_OPTIONReturn value from class method if NO is chosen. | 
| static int | OK_CANCEL_OPTIONType used for  showConfirmDialog. | 
| static int | OK_OPTIONReturn value form class method if OK is chosen. | 
| static String | OPTION_TYPE_PROPERTYBound property name for  optionType. | 
| protected Object[] | optionsOptions to display to the user. | 
| static String | OPTIONS_PROPERTYBound property name for  option. | 
| protected int | optionTypeOption type, one of  DEFAULT_OPTION,YES_NO_OPTION,YES_NO_CANCEL_OPTIONorOK_CANCEL_OPTION. | 
| static int | PLAIN_MESSAGENo icon is used. | 
| static int | QUESTION_MESSAGEUsed for questions. | 
| static String | SELECTION_VALUES_PROPERTYBound property name for  selectionValues. | 
| protected Object[] | selectionValuesArray of values the user can choose from. | 
| static Object | UNINITIALIZED_VALUEIndicates that the user has not yet selected a value. | 
| protected Object | valueCurrently selected value, will be a valid option, or
  UNINITIALIZED_VALUEornull. | 
| static String | VALUE_PROPERTYBound property name for  value. | 
| static String | WANTS_INPUT_PROPERTYBound property name for  wantsInput. | 
| protected boolean | wantsInputIf true, a UI widget will be provided to the user to get input. | 
| static int | WARNING_MESSAGEUsed for warning messages. | 
| static int | YES_NO_CANCEL_OPTIONType used for  showConfirmDialog. | 
| static int | YES_NO_OPTIONType used for  showConfirmDialog. | 
| static int | YES_OPTIONReturn value from class method if YES is chosen. | 
listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOWaccessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENTABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH| Constructor and Description | 
|---|
| JOptionPane()Creates a  JOptionPanewith a test message. | 
| JOptionPane(Object message)Creates a instance of  JOptionPaneto display a
 message using the
 plain-message message type and the default options delivered by
 the UI. | 
| JOptionPane(Object message,
           int messageType)Creates an instance of  JOptionPaneto display a message
 with the specified message type and the default options, | 
| JOptionPane(Object message,
           int messageType,
           int optionType)Creates an instance of  JOptionPaneto display a message
 with the specified message type and options. | 
| JOptionPane(Object message,
           int messageType,
           int optionType,
           Icon icon)Creates an instance of  JOptionPaneto display a message
 with the specified message type, options, and icon. | 
| JOptionPane(Object message,
           int messageType,
           int optionType,
           Icon icon,
           Object[] options)Creates an instance of  JOptionPaneto display a message
 with the specified message type, icon, and options. | 
| JOptionPane(Object message,
           int messageType,
           int optionType,
           Icon icon,
           Object[] options,
           Object initialValue)Creates an instance of  JOptionPaneto display a message
 with the specified message type, icon, and options, with the
 initially-selected option specified. | 
| Modifier and Type | Method and Description | 
|---|---|
| JDialog | createDialog(Component parentComponent,
            String title)Creates and returns a new  JDialogwrappingthiscentered on theparentComponentin theparentComponent's frame. | 
| JDialog | createDialog(String title)Creates and returns a new parentless  JDialogwith the specified title. | 
| JInternalFrame | createInternalFrame(Component parentComponent,
                   String title)Creates and returns an instance of  JInternalFrame. | 
| AccessibleContext | getAccessibleContext()Returns the  AccessibleContextassociated with this JOptionPane. | 
| static JDesktopPane | getDesktopPaneForComponent(Component parentComponent)Returns the specified component's desktop pane. | 
| static Frame | getFrameForComponent(Component parentComponent)Returns the specified component's  Frame. | 
| Icon | getIcon()Returns the icon this pane displays. | 
| Object | getInitialSelectionValue()Returns the input value that is displayed as initially selected to the user. | 
| Object | getInitialValue()Returns the initial value. | 
| Object | getInputValue()Returns the value the user has input, if  wantsInputis true. | 
| int | getMaxCharactersPerLineCount()Returns the maximum number of characters to place on a line in a
 message. | 
| Object | getMessage()Returns the message-object this pane displays. | 
| int | getMessageType()Returns the message type. | 
| Object[] | getOptions()Returns the choices the user can make. | 
| int | getOptionType()Returns the type of options that are displayed. | 
| static Frame | getRootFrame()Returns the  Frameto use for the class methods in
 which a frame is not provided. | 
| Object[] | getSelectionValues()Returns the input selection values. | 
| OptionPaneUI | getUI()Returns the UI object which implements the L&F for this component. | 
| String | getUIClassID()Returns the name of the UI class that implements the
 L&F for this component. | 
| Object | getValue()Returns the value the user has selected. | 
| boolean | getWantsInput()Returns the value of the  wantsInputproperty. | 
| protected String | paramString()Returns a string representation of this  JOptionPane. | 
| void | selectInitialValue()Requests that the initial value be selected, which will set
 focus to the initial value. | 
| void | setIcon(Icon newIcon)Sets the icon to display. | 
| void | setInitialSelectionValue(Object newValue)Sets the input value that is initially displayed as selected to the user. | 
| void | setInitialValue(Object newInitialValue)Sets the initial value that is to be enabled -- the
  Componentthat has the focus when the pane is initially displayed. | 
| void | setInputValue(Object newValue)Sets the input value that was selected or input by the user. | 
| void | setMessage(Object newMessage)Sets the option pane's message-object. | 
| void | setMessageType(int newType)Sets the option pane's message type. | 
| void | setOptions(Object[] newOptions)Sets the options this pane displays. | 
| void | setOptionType(int newType)Sets the options to display. | 
| static void | setRootFrame(Frame newRootFrame)Sets the frame to use for class methods in which a frame is
 not provided. | 
| void | setSelectionValues(Object[] newValues)Sets the input selection values for a pane that provides the user
 with a list of items to choose from. | 
| void | setUI(OptionPaneUI ui)Sets the UI object which implements the L&F for this component. | 
| void | setValue(Object newValue)Sets the value the user has chosen. | 
| void | setWantsInput(boolean newValue)Sets the  wantsInputproperty. | 
| static int | showConfirmDialog(Component parentComponent,
                 Object message)Brings up a dialog with the options Yes,
 No and Cancel; with the
 title, Select an Option. | 
| static int | showConfirmDialog(Component parentComponent,
                 Object message,
                 String title,
                 int optionType)Brings up a dialog where the number of choices is determined
 by the  optionTypeparameter. | 
| static int | showConfirmDialog(Component parentComponent,
                 Object message,
                 String title,
                 int optionType,
                 int messageType)Brings up a dialog where the number of choices is determined
 by the  optionTypeparameter, where themessageTypeparameter determines the icon to display. | 
| static int | showConfirmDialog(Component parentComponent,
                 Object message,
                 String title,
                 int optionType,
                 int messageType,
                 Icon icon)Brings up a dialog with a specified icon, where the number of
 choices is determined by the  optionTypeparameter. | 
| static String | showInputDialog(Component parentComponent,
               Object message)Shows a question-message dialog requesting input from the user
 parented to  parentComponent. | 
| static String | showInputDialog(Component parentComponent,
               Object message,
               Object initialSelectionValue)Shows a question-message dialog requesting input from the user and
 parented to  parentComponent. | 
| static String | showInputDialog(Component parentComponent,
               Object message,
               String title,
               int messageType)Shows a dialog requesting input from the user parented to
  parentComponentwith the dialog having the titletitleand message typemessageType. | 
| static Object | showInputDialog(Component parentComponent,
               Object message,
               String title,
               int messageType,
               Icon icon,
               Object[] selectionValues,
               Object initialSelectionValue)Prompts the user for input in a blocking dialog where the
 initial selection, possible selections, and all other options can
 be specified. | 
| static String | showInputDialog(Object message)Shows a question-message dialog requesting input from the user. | 
| static String | showInputDialog(Object message,
               Object initialSelectionValue)Shows a question-message dialog requesting input from the user, with
 the input value initialized to  initialSelectionValue. | 
| static int | showInternalConfirmDialog(Component parentComponent,
                         Object message)Brings up an internal dialog panel with the options Yes, No
 and Cancel; with the title, Select an Option. | 
| static int | showInternalConfirmDialog(Component parentComponent,
                         Object message,
                         String title,
                         int optionType)Brings up a internal dialog panel where the number of choices
 is determined by the  optionTypeparameter. | 
| static int | showInternalConfirmDialog(Component parentComponent,
                         Object message,
                         String title,
                         int optionType,
                         int messageType)Brings up an internal dialog panel where the number of choices
 is determined by the  optionTypeparameter, where
 themessageTypeparameter determines the icon to display. | 
| static int | showInternalConfirmDialog(Component parentComponent,
                         Object message,
                         String title,
                         int optionType,
                         int messageType,
                         Icon icon)Brings up an internal dialog panel with a specified icon, where
 the number of choices is determined by the  optionTypeparameter. | 
| static String | showInternalInputDialog(Component parentComponent,
                       Object message)Shows an internal question-message dialog requesting input from
 the user parented to  parentComponent. | 
| static String | showInternalInputDialog(Component parentComponent,
                       Object message,
                       String title,
                       int messageType)Shows an internal dialog requesting input from the user parented
 to  parentComponentwith the dialog having the titletitleand message typemessageType. | 
| static Object | showInternalInputDialog(Component parentComponent,
                       Object message,
                       String title,
                       int messageType,
                       Icon icon,
                       Object[] selectionValues,
                       Object initialSelectionValue)Prompts the user for input in a blocking internal dialog where
 the initial selection, possible selections, and all other
 options can be specified. | 
| static void | showInternalMessageDialog(Component parentComponent,
                         Object message)Brings up an internal confirmation dialog panel. | 
| static void | showInternalMessageDialog(Component parentComponent,
                         Object message,
                         String title,
                         int messageType)Brings up an internal dialog panel that displays a message
 using a default icon determined by the  messageTypeparameter. | 
| static void | showInternalMessageDialog(Component parentComponent,
                         Object message,
                         String title,
                         int messageType,
                         Icon icon)Brings up an internal dialog panel displaying a message,
 specifying all parameters. | 
| static int | showInternalOptionDialog(Component parentComponent,
                        Object message,
                        String title,
                        int optionType,
                        int messageType,
                        Icon icon,
                        Object[] options,
                        Object initialValue)Brings up an internal dialog panel with a specified icon, where
 the initial choice is determined by the  initialValueparameter and the number of choices is determined by theoptionTypeparameter. | 
| static void | showMessageDialog(Component parentComponent,
                 Object message)Brings up an information-message dialog titled "Message". | 
| static void | showMessageDialog(Component parentComponent,
                 Object message,
                 String title,
                 int messageType)Brings up a dialog that displays a message using a default
 icon determined by the  messageTypeparameter. | 
| static void | showMessageDialog(Component parentComponent,
                 Object message,
                 String title,
                 int messageType,
                 Icon icon)Brings up a dialog displaying a message, specifying all parameters. | 
| static int | showOptionDialog(Component parentComponent,
                Object message,
                String title,
                int optionType,
                int messageType,
                Icon icon,
                Object[] options,
                Object initialValue)Brings up a dialog with a specified icon, where the initial
 choice is determined by the  initialValueparameter and
 the number of choices is determined by theoptionTypeparameter. | 
| void | updateUI()Notification from the  UIManagerthat the L&F has changed. | 
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, updateadd, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTreeaction, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCyclepublic static final Object UNINITIALIZED_VALUE
public static final int DEFAULT_OPTION
JOptionPane.public static final int YES_NO_OPTION
showConfirmDialog.public static final int YES_NO_CANCEL_OPTION
showConfirmDialog.public static final int OK_CANCEL_OPTION
showConfirmDialog.public static final int YES_OPTION
public static final int NO_OPTION
public static final int CANCEL_OPTION
public static final int OK_OPTION
public static final int CLOSED_OPTION
CANCEL_OPTION or NO_OPTION.public static final int ERROR_MESSAGE
public static final int INFORMATION_MESSAGE
public static final int WARNING_MESSAGE
public static final int QUESTION_MESSAGE
public static final int PLAIN_MESSAGE
public static final String ICON_PROPERTY
icon.public static final String MESSAGE_PROPERTY
message.public static final String VALUE_PROPERTY
value.public static final String OPTIONS_PROPERTY
option.public static final String INITIAL_VALUE_PROPERTY
initialValue.public static final String MESSAGE_TYPE_PROPERTY
type.public static final String OPTION_TYPE_PROPERTY
optionType.public static final String SELECTION_VALUES_PROPERTY
selectionValues.public static final String INITIAL_SELECTION_VALUE_PROPERTY
initialSelectionValue.public static final String INPUT_VALUE_PROPERTY
inputValue.public static final String WANTS_INPUT_PROPERTY
wantsInput.protected transient Icon icon
protected transient Object message
protected transient Object[] options
protected transient Object initialValue
options.protected int messageType
protected int optionType
DEFAULT_OPTION,
 YES_NO_OPTION,
 YES_NO_CANCEL_OPTION or
 OK_CANCEL_OPTION.protected transient Object value
UNINITIALIZED_VALUE or null.protected transient Object[] selectionValues
protected transient Object inputValue
protected transient Object initialSelectionValue
selectionValues.protected boolean wantsInput
public JOptionPane()
JOptionPane with a test message.public JOptionPane(Object message)
JOptionPane to display a
 message using the
 plain-message message type and the default options delivered by
 the UI.message - the Object to displaypublic JOptionPane(Object message, int messageType)
JOptionPane to display a message
 with the specified message type and the default options,message - the Object to displaymessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEpublic JOptionPane(Object message, int messageType, int optionType)
JOptionPane to display a message
 with the specified message type and options.message - the Object to displaymessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEoptionType - the options to display in the pane:
                  DEFAULT_OPTION, YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  OK_CANCEL_OPTIONpublic JOptionPane(Object message, int messageType, int optionType, Icon icon)
JOptionPane to display a message
 with the specified message type, options, and icon.message - the Object to displaymessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEoptionType - the options to display in the pane:
                  DEFAULT_OPTION, YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  OK_CANCEL_OPTIONicon - the Icon image to displaypublic JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options)
JOptionPane to display a message
 with the specified message type, icon, and options.
 None of the options is initially selected.
 
 The options objects should contain either instances of
 Components, (which are added directly) or
 Strings (which are wrapped in a JButton).
 If you provide Components, you must ensure that when the
 Component is clicked it messages setValue
 in the created JOptionPane.
message - the Object to displaymessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEoptionType - the options to display in the pane:
                  DEFAULT_OPTION,
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  OK_CANCEL_OPTIONicon - the Icon image to displayoptions - the choices the user can selectpublic JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options, Object initialValue)
JOptionPane to display a message
 with the specified message type, icon, and options, with the
 initially-selected option specified.message - the Object to displaymessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEoptionType - the options to display in the pane:
                  DEFAULT_OPTION,
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  OK_CANCEL_OPTIONicon - the Icon image to displayoptions - the choices the user can selectinitialValue - the choice that is initially selected; if
                  null, then nothing will be initially selected;
                  only meaningful if options is usedpublic static String showInputDialog(Object message) throws HeadlessException
message - the Object to displayHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static String showInputDialog(Object message, Object initialSelectionValue)
initialSelectionValue. The
 dialog uses the default frame, which usually means it is centered on
 the screen.message - the Object to displayinitialSelectionValue - the value used to initialize the input
                 fieldpublic static String showInputDialog(Component parentComponent, Object message) throws HeadlessException
parentComponent.
 The dialog is displayed on top of the Component's
 frame, and is usually positioned below the Component.parentComponent - the parent Component for the
          dialogmessage - the Object to displayHeadlessException - if
    GraphicsEnvironment.isHeadless returns
    trueGraphicsEnvironment.isHeadless()public static String showInputDialog(Component parentComponent, Object message, Object initialSelectionValue)
parentComponent. The input value will be
 initialized to initialSelectionValue.
 The dialog is displayed on top of the Component's
 frame, and is usually positioned below the Component.parentComponent - the parent Component for the
          dialogmessage - the Object to displayinitialSelectionValue - the value used to initialize the input
                 fieldpublic static String showInputDialog(Component parentComponent, Object message, String title, int messageType) throws HeadlessException
parentComponent with the dialog having the title
 title and message type messageType.parentComponent - the parent Component for the
                  dialogmessage - the Object to displaytitle - the String to display in the dialog
                  title barmessageType - the type of message that is to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static Object showInputDialog(Component parentComponent, Object message, String title, int messageType, Icon icon, Object[] selectionValues, Object initialSelectionValue) throws HeadlessException
selectionValues, where null implies the
 user can input
 whatever they wish, usually by means of a JTextField.
 initialSelectionValue is the initial value to prompt
 the user with. It is up to the UI to decide how best to represent
 the selectionValues, but usually a
 JComboBox, JList, or
 JTextField will be used.parentComponent - the parent Component for the
                  dialogmessage - the Object to displaytitle - the String to display in the
                  dialog title barmessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEicon - the Icon image to displayselectionValues - an array of Objects that
                  gives the possible selectionsinitialSelectionValue - the value used to initialize the input
                 fieldnull meaning the user
                  canceled the inputHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static void showMessageDialog(Component parentComponent, Object message) throws HeadlessException
parentComponent - determines the Frame in
          which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the Object to displayHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static void showMessageDialog(Component parentComponent, Object message, String title, int messageType) throws HeadlessException
messageType parameter.parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the Object to displaytitle - the title string for the dialogmessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static void showMessageDialog(Component parentComponent, Object message, String title, int messageType, Icon icon) throws HeadlessException
parentComponent - determines the Frame in which the
                  dialog is displayed; if null,
                  or if the parentComponent has no
                  Frame, a
                  default Frame is usedmessage - the Object to displaytitle - the title string for the dialogmessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEicon - an icon to display in the dialog that helps the user
                  identify the kind of message that is being displayedHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static int showConfirmDialog(Component parentComponent, Object message) throws HeadlessException
parentComponent - determines the Frame in which the
                  dialog is displayed; if null,
                  or if the parentComponent has no
                  Frame, a
                  default Frame is usedmessage - the Object to displayHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType) throws HeadlessException
optionType parameter.parentComponent - determines the Frame in which the
                  dialog is displayed; if null,
                  or if the parentComponent has no
                  Frame, a
                  default Frame is usedmessage - the Object to displaytitle - the title string for the dialogoptionType - an int designating the options available on the dialog:
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  or OK_CANCEL_OPTIONHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType) throws HeadlessException
optionType parameter, where the
 messageType
 parameter determines the icon to display.
 The messageType parameter is primarily used to supply
 a default icon from the Look and Feel.parentComponent - determines the Frame in
                  which the dialog is displayed; if null,
                  or if the parentComponent has no
                  Frame, a
                  default Frame is used.message - the Object to displaytitle - the title string for the dialogoptionType - an integer designating the options available
                   on the dialog: YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  or OK_CANCEL_OPTIONmessageType - an integer designating the kind of message this is;
                  primarily used to determine the icon from the pluggable
                  Look and Feel: ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon) throws HeadlessException
optionType parameter.
 The messageType parameter is primarily used to supply
 a default icon from the look and feel.parentComponent - determines the Frame in which the
                  dialog is displayed; if null,
                  or if the parentComponent has no
                  Frame, a
                  default Frame is usedmessage - the Object to displaytitle - the title string for the dialogoptionType - an int designating the options available on the dialog:
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  or OK_CANCEL_OPTIONmessageType - an int designating the kind of message this is,
                  primarily used to determine the icon from the pluggable
                  Look and Feel: ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEicon - the icon to display in the dialogHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static int showOptionDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon, Object[] options, Object initialValue) throws HeadlessException
initialValue parameter and
 the number of choices is determined by the optionType
 parameter.
 
 If optionType is YES_NO_OPTION,
 or YES_NO_CANCEL_OPTION
 and the options parameter is null,
 then the options are
 supplied by the look and feel.
 
 The messageType parameter is primarily used to supply
 a default icon from the look and feel.
parentComponent - determines the Frame
                  in which the dialog is displayed;  if
                  null, or if the
                  parentComponent has no
                  Frame, a
                  default Frame is usedmessage - the Object to displaytitle - the title string for the dialogoptionType - an integer designating the options available on the
                  dialog: DEFAULT_OPTION,
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  or OK_CANCEL_OPTIONmessageType - an integer designating the kind of message this is,
                  primarily used to determine the icon from the
                  pluggable Look and Feel: ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEicon - the icon to display in the dialogoptions - an array of objects indicating the possible choices
                  the user can make; if the objects are components, they
                  are rendered properly; non-String
                  objects are
                  rendered using their toString methods;
                  if this parameter is null,
                  the options are determined by the Look and FeelinitialValue - the object that represents the default selection
                  for the dialog; only meaningful if options
                  is used; can be nullCLOSED_OPTION if the user closed
                  the dialogHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public JDialog createDialog(Component parentComponent, String title) throws HeadlessException
JDialog wrapping
 this centered on the parentComponent
 in the parentComponent's frame.
 title is the title of the returned dialog.
 The returned JDialog will not be resizable by the
 user, however programs can invoke setResizable on
 the JDialog instance to change this property.
 The returned JDialog will be set up such that
 once it is closed, or the user clicks on one of the buttons,
 the optionpane's value property will be set accordingly and
 the dialog will be closed.  Each time the dialog is made visible,
 it will reset the option pane's value property to
 JOptionPane.UNINITIALIZED_VALUE to ensure the
 user's subsequent action closes the dialog properly.parentComponent - determines the frame in which the dialog
          is displayed; if the parentComponent has
          no Frame, a default Frame is usedtitle - the title string for the dialogJDialog containing this instanceHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public JDialog createDialog(String title) throws HeadlessException
JDialog
 with the specified title.
 The returned JDialog will not be resizable by the
 user, however programs can invoke setResizable on
 the JDialog instance to change this property.
 The returned JDialog will be set up such that
 once it is closed, or the user clicks on one of the buttons,
 the optionpane's value property will be set accordingly and
 the dialog will be closed.  Each time the dialog is made visible,
 it will reset the option pane's value property to
 JOptionPane.UNINITIALIZED_VALUE to ensure the
 user's subsequent action closes the dialog properly.title - the title string for the dialogJDialog containing this instanceHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   trueGraphicsEnvironment.isHeadless()public static void showInternalMessageDialog(Component parentComponent, Object message)
parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the object to displaypublic static void showInternalMessageDialog(Component parentComponent, Object message, String title, int messageType)
messageType
 parameter.parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the Object to displaytitle - the title string for the dialogmessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEpublic static void showInternalMessageDialog(Component parentComponent, Object message, String title, int messageType, Icon icon)
parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the Object to displaytitle - the title string for the dialogmessageType - the type of message to be displayed:
                  ERROR_MESSAGE,
                  INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE,
                  or PLAIN_MESSAGEicon - an icon to display in the dialog that helps the user
                  identify the kind of message that is being displayedpublic static int showInternalConfirmDialog(Component parentComponent, Object message)
parentComponent - determines the Frame in
          which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the Object to displaypublic static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType)
optionType parameter.parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the object to display in the dialog; a
          Component object is rendered as a
          Component; a String
          object is rendered as a string; other objects
          are converted to a String using the
          toString methodtitle - the title string for the dialogoptionType - an integer designating the options
          available on the dialog: YES_NO_OPTION,
          or YES_NO_CANCEL_OPTIONpublic static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType)
optionType parameter, where
 the messageType parameter determines the icon to display.
 The messageType parameter is primarily used to supply
 a default icon from the Look and Feel.parentComponent - determines the Frame in
          which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the object to display in the dialog; a
          Component object is rendered as a
          Component; a String
          object is rendered as a string; other objects are
          converted to a String using the
          toString methodtitle - the title string for the dialogoptionType - an integer designating the options
          available on the dialog:
          YES_NO_OPTION, or YES_NO_CANCEL_OPTIONmessageType - an integer designating the kind of message this is,
          primarily used to determine the icon from the
          pluggable Look and Feel: ERROR_MESSAGE,
          INFORMATION_MESSAGE,
          WARNING_MESSAGE, QUESTION_MESSAGE,
          or PLAIN_MESSAGEpublic static int showInternalConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon)
optionType
 parameter.
 The messageType parameter is primarily used to supply
 a default icon from the look and feel.parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no Frame, a
          default Frame is usedmessage - the object to display in the dialog; a
          Component object is rendered as a
          Component; a String
          object is rendered as a string; other objects are
          converted to a String using the
          toString methodtitle - the title string for the dialogoptionType - an integer designating the options available
          on the dialog:
          YES_NO_OPTION, or
          YES_NO_CANCEL_OPTION.messageType - an integer designating the kind of message this is,
          primarily used to determine the icon from the pluggable
          Look and Feel: ERROR_MESSAGE,
          INFORMATION_MESSAGE,
          WARNING_MESSAGE, QUESTION_MESSAGE,
          or PLAIN_MESSAGEicon - the icon to display in the dialogpublic static int showInternalOptionDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon, Object[] options, Object initialValue)
initialValue
 parameter and the number of choices is determined by the
 optionType parameter.
 
 If optionType is YES_NO_OPTION, or
 YES_NO_CANCEL_OPTION
 and the options parameter is null,
 then the options are supplied by the Look and Feel.
 
 The messageType parameter is primarily used to supply
 a default icon from the look and feel.
parentComponent - determines the Frame
          in which the dialog is displayed; if null,
          or if the parentComponent has no
          Frame, a default Frame is usedmessage - the object to display in the dialog; a
          Component object is rendered as a
          Component; a String
          object is rendered as a string. Other objects are
          converted to a String using the
          toString methodtitle - the title string for the dialogoptionType - an integer designating the options available
          on the dialog: YES_NO_OPTION,
          or YES_NO_CANCEL_OPTIONmessageType - an integer designating the kind of message this is;
          primarily used to determine the icon from the
          pluggable Look and Feel: ERROR_MESSAGE,
          INFORMATION_MESSAGE,
          WARNING_MESSAGE, QUESTION_MESSAGE,
          or PLAIN_MESSAGEicon - the icon to display in the dialogoptions - an array of objects indicating the possible choices
          the user can make; if the objects are components, they
          are rendered properly; non-String
          objects are rendered using their toString
          methods; if this parameter is null,
          the options are determined by the Look and FeelinitialValue - the object that represents the default selection
          for the dialog; only meaningful if options
          is used; can be nullCLOSED_OPTION if the user closed the Dialogpublic static String showInternalInputDialog(Component parentComponent, Object message)
parentComponent. The dialog
 is displayed in the Component's frame,
 and is usually positioned below the Component.parentComponent - the parent Component
          for the dialogmessage - the Object to displaypublic static String showInternalInputDialog(Component parentComponent, Object message, String title, int messageType)
parentComponent with the dialog having the title
 title and message type messageType.parentComponent - the parent Component for the dialogmessage - the Object to displaytitle - the String to display in the
          dialog title barmessageType - the type of message that is to be displayed:
                    ERROR_MESSAGE, INFORMATION_MESSAGE, WARNING_MESSAGE,
                    QUESTION_MESSAGE, or PLAIN_MESSAGEpublic static Object showInternalInputDialog(Component parentComponent, Object message, String title, int messageType, Icon icon, Object[] selectionValues, Object initialSelectionValue)
selectionValues, where null
 implies the user can input
 whatever they wish, usually by means of a JTextField.
 initialSelectionValue is the initial value to prompt
 the user with. It is up to the UI to decide how best to represent
 the selectionValues, but usually a
 JComboBox, JList, or
 JTextField will be used.parentComponent - the parent Component for the dialogmessage - the Object to displaytitle - the String to display in the dialog
          title barmessageType - the type of message to be displayed:
                  ERROR_MESSAGE, INFORMATION_MESSAGE,
                  WARNING_MESSAGE,
                  QUESTION_MESSAGE, or PLAIN_MESSAGEicon - the Icon image to displayselectionValues - an array of Objects that
                  gives the possible selectionsinitialSelectionValue - the value used to initialize the input
                  fieldnull meaning the user
          canceled the inputpublic JInternalFrame createInternalFrame(Component parentComponent, String title)
JInternalFrame.
 The internal frame is created with the specified title,
 and wrapping the JOptionPane.
 The returned JInternalFrame is
 added to the JDesktopPane ancestor of
 parentComponent, or components
 parent if one its ancestors isn't a JDesktopPane,
 or if parentComponent
 doesn't have a parent then a RuntimeException is thrown.parentComponent - the parent Component for
          the internal frametitle - the String to display in the
          frame's title barJInternalFrame containing a
          JOptionPaneRuntimeException - if parentComponent does
          not have a valid parentpublic static Frame getFrameForComponent(Component parentComponent) throws HeadlessException
Frame.parentComponent - the Component to check for a
          FrameFrame that contains the component,
          or getRootFrame
          if the component is null,
          or does not have a valid Frame parentHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   truegetRootFrame(), 
GraphicsEnvironment.isHeadless()public static JDesktopPane getDesktopPaneForComponent(Component parentComponent)
parentComponent - the Component to check for a
          desktopJDesktopPane that contains the component,
          or null if the component is null
          or does not have an ancestor that is a
          JInternalFramepublic static void setRootFrame(Frame newRootFrame)
Note: It is recommended that rather than using this method you supply a valid parent.
newRootFrame - the default Frame to usepublic static Frame getRootFrame() throws HeadlessException
Frame to use for the class methods in
 which a frame is not provided.Frame to useHeadlessException - if
   GraphicsEnvironment.isHeadless returns
   truesetRootFrame(java.awt.Frame), 
GraphicsEnvironment.isHeadless()public void setUI(OptionPaneUI ui)
ui - the OptionPaneUI L&F objectUIDefaults.getUI(javax.swing.JComponent)public OptionPaneUI getUI()
OptionPaneUI objectpublic void updateUI()
UIManager that the L&F has changed.
 Replaces the current UI object with the latest version from the
 UIManager.updateUI in class JComponentJComponent.updateUI()public String getUIClassID()
getUIClassID in class JComponentJComponent.getUIClassID(), 
UIDefaults.getUI(javax.swing.JComponent)public void setMessage(Object newMessage)
newMessage - the Object to displaygetMessage()public Object getMessage()
Object that is displayedsetMessage(java.lang.Object)public void setIcon(Icon newIcon)
null, the look and feel
 does not provide an icon.newIcon - the Icon to displaygetIcon()public Icon getIcon()
Icon that is displayedsetIcon(javax.swing.Icon)public void setValue(Object newValue)
newValue - the chosen valuegetValue()public Object getValue()
UNINITIALIZED_VALUE
 implies the user has not yet made a choice, null means the
 user closed the window with out choosing anything. Otherwise
 the returned value will be one of the options defined in this
 object.Object chosen by the user,
         UNINITIALIZED_VALUE
         if the user has not yet made a choice, or null if
         the user closed the window without making a choicesetValue(java.lang.Object)public void setOptions(Object[] newOptions)
newOptions is a Component
 it is added directly to the pane,
 otherwise a button is created for the element.newOptions - an array of Objects that create the
          buttons the user can click on, or arbitrary
          Components to add to the panegetOptions()public Object[] getOptions()
Objects that give the user's choicessetOptions(java.lang.Object[])public void setInitialValue(Object newInitialValue)
Component
 that has the focus when the pane is initially displayed.newInitialValue - the Object that gets the initial
                         keyboard focusgetInitialValue()public Object getInitialValue()
Object that gets the initial keyboard focussetInitialValue(java.lang.Object)public void setMessageType(int newType)
parentComponent.newType - an integer specifying the kind of message to display:
                ERROR_MESSAGE, INFORMATION_MESSAGE,
                WARNING_MESSAGE,
                QUESTION_MESSAGE, or PLAIN_MESSAGERuntimeException - if newType is not one of the
          legal values listed abovegetMessageType()public int getMessageType()
setMessageType(int)public void setOptionType(int newType)
newType - an integer specifying the options the L&F is to display:
                  DEFAULT_OPTION,
                  YES_NO_OPTION,
                  YES_NO_CANCEL_OPTION,
                  or OK_CANCEL_OPTIONRuntimeException - if newType is not one of
          the legal values listed abovegetOptionType(), 
setOptions(java.lang.Object[])public int getOptionType()
setOptionType(int)public void setSelectionValues(Object[] newValues)
null value
 implies the user can input whatever they wish, usually by means
 of a JTextField.
 
 Sets wantsInput to true. Use
 setInitialSelectionValue to specify the initially-chosen
 value. After the pane as been enabled, inputValue is
 set to the value the user has selected.
newValues - an array of Objects the user to be
                  displayed
                  (usually in a list or combo-box) from which
                  the user can make a selectionsetWantsInput(boolean), 
setInitialSelectionValue(java.lang.Object), 
getSelectionValues()public Object[] getSelectionValues()
Objects the user can selectsetSelectionValues(java.lang.Object[])public void setInitialSelectionValue(Object newValue)
wantsInput is true.newValue - the initially selected valuesetSelectionValues(java.lang.Object[]), 
getInitialSelectionValue()public Object getInitialSelectionValue()
setInitialSelectionValue(java.lang.Object), 
setSelectionValues(java.lang.Object[])public void setInputValue(Object newValue)
wantsInput is true.  Note that this method
 is invoked internally by the option pane (in response to user action)
 and should generally not be called by client programs.  To set the
 input value initially displayed as selected to the user, use
 setInitialSelectionValue.newValue - the Object used to set the
          value that the user specified (usually in a text field)setSelectionValues(java.lang.Object[]), 
setInitialSelectionValue(java.lang.Object), 
setWantsInput(boolean), 
getInputValue()public Object getInputValue()
wantsInput
 is true.Object the user specified,
          if it was one of the objects, or a
          String if it was a value typed into a
          fieldsetSelectionValues(java.lang.Object[]), 
setWantsInput(boolean), 
setInputValue(java.lang.Object)public int getMaxCharactersPerLineCount()
Integer.MAX_VALUE.
 The value can be
 changed by overriding this method in a subclass.public void setWantsInput(boolean newValue)
wantsInput property.
 If newValue is true, an input component
 (such as a text field or combo box) whose parent is
 parentComponent is provided to
 allow the user to input a value. If getSelectionValues
 returns a non-null array, the input value is one of the
 objects in that array. Otherwise the input value is whatever
 the user inputs.
 This is a bound property.
public boolean getWantsInput()
wantsInput property.setWantsInput(boolean)public void selectInitialValue()
protected String paramString()
JOptionPane.
 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 JComponentJOptionPanepublic AccessibleContext getAccessibleContext()
AccessibleContext associated with this JOptionPane.
 For option panes, the AccessibleContext takes the form of an
 AccessibleJOptionPane.
 A new AccessibleJOptionPane instance is created if necessary.getAccessibleContext in interface AccessiblegetAccessibleContext in class Component Submit a bug or feature 
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