Java™ Platform
Standard Ed. 6

Uses of Class
java.awt.HeadlessException

Packages that use HeadlessException
java.applet Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context. 
java.awt Contains all of the classes for creating user interfaces and for painting graphics and images. 
java.awt.dnd Drag and Drop is a direct manipulation gesture found in many Graphical User Interface systems that provides a mechanism to transfer information between two entities logically associated with presentation elements in the GUI. 
java.awt.print Provides classes and interfaces for a general printing API. 
javax.print Provides the principal classes and interfaces for the JavaTM Print Service API. 
javax.swing Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms. 
 

Uses of HeadlessException in java.applet
 

Constructors in java.applet that throw HeadlessException
Applet()
          Constructs a new Applet.
 

Uses of HeadlessException in java.awt
 

Methods in java.awt that throw HeadlessException
protected abstract  java.awt.peer.ButtonPeer Toolkit.createButton(Button target)
          Creates this toolkit's implementation of Button using the specified peer interface.
protected abstract  java.awt.peer.CheckboxPeer Toolkit.createCheckbox(Checkbox target)
          Creates this toolkit's implementation of Checkbox using the specified peer interface.
protected abstract  java.awt.peer.CheckboxMenuItemPeer Toolkit.createCheckboxMenuItem(CheckboxMenuItem target)
          Creates this toolkit's implementation of CheckboxMenuItem using the specified peer interface.
protected abstract  java.awt.peer.ChoicePeer Toolkit.createChoice(Choice target)
          Creates this toolkit's implementation of Choice using the specified peer interface.
 Cursor Toolkit.createCustomCursor(Image cursor, Point hotSpot, String name)
          Creates a new custom cursor object.
protected abstract  java.awt.peer.DesktopPeer Toolkit.createDesktopPeer(Desktop target)
          Creates this toolkit's implementation of the Desktop using the specified peer interface.
protected abstract  java.awt.peer.DialogPeer Toolkit.createDialog(Dialog target)
          Creates this toolkit's implementation of Dialog using the specified peer interface.
protected abstract  java.awt.peer.FileDialogPeer Toolkit.createFileDialog(FileDialog target)
          Creates this toolkit's implementation of FileDialog using the specified peer interface.
protected abstract  java.awt.peer.FramePeer Toolkit.createFrame(Frame target)
          Creates this toolkit's implementation of Frame using the specified peer interface.
protected abstract  java.awt.peer.LabelPeer Toolkit.createLabel(Label target)
          Creates this toolkit's implementation of Label using the specified peer interface.
protected abstract  java.awt.peer.ListPeer Toolkit.createList(List target)
          Creates this toolkit's implementation of List using the specified peer interface.
protected abstract  java.awt.peer.MenuPeer Toolkit.createMenu(Menu target)
          Creates this toolkit's implementation of Menu using the specified peer interface.
protected abstract  java.awt.peer.MenuBarPeer Toolkit.createMenuBar(MenuBar target)
          Creates this toolkit's implementation of MenuBar using the specified peer interface.
protected abstract  java.awt.peer.MenuItemPeer Toolkit.createMenuItem(MenuItem target)
          Creates this toolkit's implementation of MenuItem using the specified peer interface.
protected abstract  java.awt.peer.PopupMenuPeer Toolkit.createPopupMenu(PopupMenu target)
          Creates this toolkit's implementation of PopupMenu using the specified peer interface.
protected abstract  java.awt.peer.ScrollbarPeer Toolkit.createScrollbar(Scrollbar target)
          Creates this toolkit's implementation of Scrollbar using the specified peer interface.
protected abstract  java.awt.peer.ScrollPanePeer Toolkit.createScrollPane(ScrollPane target)
          Creates this toolkit's implementation of ScrollPane using the specified peer interface.
protected abstract  java.awt.peer.TextAreaPeer Toolkit.createTextArea(TextArea target)
          Creates this toolkit's implementation of TextArea using the specified peer interface.
protected abstract  java.awt.peer.TextFieldPeer Toolkit.createTextField(TextField target)
          Creates this toolkit's implementation of TextField using the specified peer interface.
protected abstract  java.awt.peer.WindowPeer Toolkit.createWindow(Window target)
          Creates this toolkit's implementation of Window using the specified peer interface.
 Dimension Toolkit.getBestCursorSize(int preferredWidth, int preferredHeight)
          Returns the supported cursor dimension which is closest to the desired sizes.
 Point GraphicsEnvironment.getCenterPoint()
          Returns the Point where Windows should be centered.
abstract  ColorModel Toolkit.getColorModel()
          Determines the color model of this toolkit's screen.
abstract  GraphicsDevice GraphicsEnvironment.getDefaultScreenDevice()
          Returns the default screen GraphicsDevice.
 int Toolkit.getMaximumCursorColors()
          Returns the maximum number of colors the Toolkit supports in a custom cursor palette.
 Rectangle GraphicsEnvironment.getMaximumWindowBounds()
          Returns the maximum bounds for centered Windows.
 int Toolkit.getMenuShortcutKeyMask()
          Determines which modifier key is the appropriate accelerator key for menu shortcuts.
 Point Component.getMousePosition()
          Returns the position of the mouse pointer in this Component's coordinate space if the Component is directly under the mouse pointer, otherwise returns null.
 Point Container.getMousePosition(boolean allowChildren)
          Returns the position of the mouse pointer in this Container's coordinate space if the Container is under the mouse pointer, otherwise returns null.
static int MouseInfo.getNumberOfButtons()
          Returns the number of buttons on the mouse.
static PointerInfo MouseInfo.getPointerInfo()
          Returns a PointerInfo instance that represents the current location of the mouse pointer.
abstract  GraphicsDevice[] GraphicsEnvironment.getScreenDevices()
          Returns an array of all of the screen GraphicsDevice objects.
 Insets Toolkit.getScreenInsets(GraphicsConfiguration gc)
          Gets the insets of the screen.
abstract  int Toolkit.getScreenResolution()
          Returns the screen resolution in dots-per-inch.
abstract  Dimension Toolkit.getScreenSize()
          Gets the size of the screen.
abstract  Clipboard Toolkit.getSystemClipboard()
          Gets the singleton instance of the system Clipboard which interfaces with clipboard facilities provided by the native platform.
static Cursor Cursor.getSystemCustomCursor(String name)
          Returns a system-specific custom cursor object matching the specified name.
 Clipboard Toolkit.getSystemSelection()
          Gets the singleton instance of the system selection as a Clipboard object.
 boolean Toolkit.isDynamicLayoutActive()
          Returns whether dynamic layout of Containers on resize is currently active (both set programmatically, and supported by the underlying operating system and/or window manager).
protected  boolean Toolkit.isDynamicLayoutSet()
          Returns whether the layout of Containers is validated dynamically during resizing, or statically, after resizing is complete.
 boolean Toolkit.isFrameStateSupported(int state)
          Returns whether Toolkit supports this state for Frames.
protected  void Toolkit.loadSystemColors(int[] systemColors)
          Fills in the integer array that is supplied as an argument with the current system color values.
abstract  Map<TextAttribute,?> Toolkit.mapInputMethodHighlight(InputMethodHighlight highlight)
          Returns a map of visual attributes for the abstract level description of the given input method highlight, or null if no mapping is found.
 void Toolkit.setDynamicLayout(boolean dynamic)
          Controls whether the layout of Containers is validated dynamically during resizing, or statically, after resizing is complete.
 

Constructors in java.awt that throw HeadlessException
Button()
          Constructs a button with an empty string for its label.
Button(String label)
          Constructs a button with the specified label.
Checkbox()
          Creates a check box with an empty string for its label.
Checkbox(String label)
          Creates a check box with the specified label.
Checkbox(String label, boolean state)
          Creates a check box with the specified label and sets the specified state.
Checkbox(String label, boolean state, CheckboxGroup group)
          Constructs a Checkbox with the specified label, set to the specified state, and in the specified check box group.
Checkbox(String label, CheckboxGroup group, boolean state)
          Creates a check box with the specified label, in the specified check box group, and set to the specified state.
CheckboxMenuItem()
          Create a check box menu item with an empty label.
CheckboxMenuItem(String label)
          Create a check box menu item with the specified label.
CheckboxMenuItem(String label, boolean state)
          Create a check box menu item with the specified label and state.
Choice()
          Creates a new choice menu.
Frame()
          Constructs a new instance of Frame that is initially invisible.
Frame(String title)
          Constructs a new, initially invisible Frame object with the specified title.
Label()
          Constructs an empty label.
Label(String text)
          Constructs a new label with the specified string of text, left justified.
Label(String text, int alignment)
          Constructs a new label that presents the specified string of text with the specified alignment.
List()
          Creates a new scrolling list.
List(int rows)
          Creates a new scrolling list initialized with the specified number of visible lines.
List(int rows, boolean multipleMode)
          Creates a new scrolling list initialized to display the specified number of rows.
Menu()
          Constructs a new menu with an empty label.
Menu(String label)
          Constructs a new menu with the specified label.
Menu(String label, boolean tearOff)
          Constructs a new menu with the specified label, indicating whether the menu can be torn off.
MenuBar()
          Creates a new menu bar.
MenuComponent()
          Creates a MenuComponent.
MenuItem()
          Constructs a new MenuItem with an empty label and no keyboard shortcut.
MenuItem(String label)
          Constructs a new MenuItem with the specified label and no keyboard shortcut.
MenuItem(String label, MenuShortcut s)
          Create a menu item with an associated keyboard shortcut.
PopupMenu()
          Creates a new popup menu with an empty name.
PopupMenu(String label)
          Creates a new popup menu with the specified name.
Scrollbar()
          Constructs a new vertical scroll bar.
Scrollbar(int orientation)
          Constructs a new scroll bar with the specified orientation.
Scrollbar(int orientation, int value, int visible, int minimum, int maximum)
          Constructs a new scroll bar with the specified orientation, initial value, visible amount, and minimum and maximum values.
ScrollPane()
          Create a new scrollpane container with a scrollbar display policy of "as needed".
ScrollPane(int scrollbarDisplayPolicy)
          Create a new scrollpane container.
TextArea()
          Constructs a new text area with the empty string as text.
TextArea(int rows, int columns)
          Constructs a new text area with the specified number of rows and columns and the empty string as text.
TextArea(String text)
          Constructs a new text area with the specified text.
TextArea(String text, int rows, int columns)
          Constructs a new text area with the specified text, and with the specified number of rows and columns.
TextArea(String text, int rows, int columns, int scrollbars)
          Constructs a new text area with the specified text, and with the rows, columns, and scroll bar visibility as specified.
TextField()
          Constructs a new text field.
TextField(int columns)
          Constructs a new empty text field with the specified number of columns.
TextField(String text)
          Constructs a new text field initialized with the specified text.
TextField(String text, int columns)
          Constructs a new text field initialized with the specified text to be displayed, and wide enough to hold the specified number of columns.
 

Uses of HeadlessException in java.awt.dnd
 

Constructors in java.awt.dnd that throw HeadlessException
DragSource()
          Creates a new DragSource.
DropTarget()
          Creates a DropTarget.
DropTarget(Component c, DropTargetListener dtl)
          Creates a DropTarget given the Component to associate itself with, and the DropTargetListener to handle event processing.
DropTarget(Component c, int ops, DropTargetListener dtl)
          Creates a DropTarget given the Component to associate itself with, an int representing the default acceptable action(s) to support, and a DropTargetListener to handle event processing.
DropTarget(Component c, int ops, DropTargetListener dtl, boolean act)
          Creates a DropTarget given the Component to associate itself with, an int representing the default acceptable action(s) to support, a DropTargetListener to handle event processing, and a boolean indicating if the DropTarget is currently accepting drops.
DropTarget(Component c, int ops, DropTargetListener dtl, boolean act, FlavorMap fm)
          Creates a new DropTarget given the Component to associate itself with, an int representing the default acceptable action(s) to support, a DropTargetListener to handle event processing, a boolean indicating if the DropTarget is currently accepting drops, and a FlavorMap to use (or null for the default FlavorMap).
 

Uses of HeadlessException in java.awt.print
 

Methods in java.awt.print that throw HeadlessException
abstract  PageFormat PrinterJob.pageDialog(PageFormat page)
          Displays a dialog that allows modification of a PageFormat instance.
 PageFormat PrinterJob.pageDialog(PrintRequestAttributeSet attributes)
          A convenience method which displays a cross-platform page setup dialog.
abstract  boolean PrinterJob.printDialog()
          Presents a dialog to the user for changing the properties of the print job.
 boolean PrinterJob.printDialog(PrintRequestAttributeSet attributes)
          A convenience method which displays a cross-platform print dialog for all services which are capable of printing 2D graphics using the Pageable interface.
 

Uses of HeadlessException in javax.print
 

Methods in javax.print that throw HeadlessException
static PrintService ServiceUI.printDialog(GraphicsConfiguration gc, int x, int y, PrintService[] services, PrintService defaultService, DocFlavor flavor, PrintRequestAttributeSet attributes)
          Presents a dialog to the user for selecting a print service (printer).
 

Uses of HeadlessException in javax.swing
 

Methods in javax.swing that throw HeadlessException
protected  JDialog JFileChooser.createDialog(Component parent)
          Creates and returns a new JDialog wrapping this centered on the parent in the parent's frame.
 JDialog JOptionPane.createDialog(Component parentComponent, String title)
          Creates and returns a new JDialog wrapping this centered on the parentComponent in the parentComponent's frame.
static JDialog JColorChooser.createDialog(Component c, String title, boolean modal, JColorChooser chooserPane, ActionListener okListener, ActionListener cancelListener)
          Creates and returns a new dialog containing the specified ColorChooser pane along with "OK", "Cancel", and "Reset" buttons.
 JDialog JOptionPane.createDialog(String title)
          Creates and returns a new parentless JDialog with the specified title.
static Frame JOptionPane.getFrameForComponent(Component parentComponent)
          Returns the specified component's Frame.
static Frame JOptionPane.getRootFrame()
          Returns the Frame to use for the class methods in which a frame is not provided.
 boolean JTable.print(JTable.PrintMode printMode, MessageFormat headerFormat, MessageFormat footerFormat, boolean showPrintDialog, PrintRequestAttributeSet attr, boolean interactive)
          Prints this table, as specified by the fully featured print method, with the default printer specified as the print service.
 boolean JTable.print(JTable.PrintMode printMode, MessageFormat headerFormat, MessageFormat footerFormat, boolean showPrintDialog, PrintRequestAttributeSet attr, boolean interactive, PrintService service)
          Prints this JTable.
static int JOptionPane.showConfirmDialog(Component parentComponent, Object message)
          Brings up a dialog with the options Yes, No and Cancel; with the title, Select an Option.
static int JOptionPane.showConfirmDialog(Component parentComponent, Object message, String title, int optionType)
          Brings up a dialog where the number of choices is determined by the optionType parameter.
static int JOptionPane.showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType)
          Brings up a dialog where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display.
static int JOptionPane.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 optionType parameter.
 int JFileChooser.showDialog(Component parent, String approveButtonText)
          Pops a custom file chooser dialog with a custom approve button.
static Color JColorChooser.showDialog(Component component, String title, Color initialColor)
          Shows a modal color-chooser dialog and blocks until the dialog is hidden.
static String JOptionPane.showInputDialog(Component parentComponent, Object message)
          Shows a question-message dialog requesting input from the user parented to parentComponent.
static String JOptionPane.showInputDialog(Component parentComponent, Object message, String title, int messageType)
          Shows a dialog requesting input from the user parented to parentComponent with the dialog having the title title and message type messageType.
static Object JOptionPane.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 JOptionPane.showInputDialog(Object message)
          Shows a question-message dialog requesting input from the user.
static void JOptionPane.showMessageDialog(Component parentComponent, Object message)
          Brings up an information-message dialog titled "Message".
static void JOptionPane.showMessageDialog(Component parentComponent, Object message, String title, int messageType)
          Brings up a dialog that displays a message using a default icon determined by the messageType parameter.
static void JOptionPane.showMessageDialog(Component parentComponent, Object message, String title, int messageType, Icon icon)
          Brings up a dialog displaying a message, specifying all parameters.
 int JFileChooser.showOpenDialog(Component parent)
          Pops up an "Open File" file chooser dialog.
static int JOptionPane.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 initialValue parameter and the number of choices is determined by the optionType parameter.
 int JFileChooser.showSaveDialog(Component parent)
          Pops up a "Save File" file chooser dialog.
 

Constructors in javax.swing that throw HeadlessException
JApplet()
          Creates a swing applet instance.
JFrame()
          Constructs a new frame that is initially invisible.
JFrame(String title)
          Creates a new, initially invisible Frame with the specified title.
 


Java™ Platform
Standard Ed. 6

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