Class JFileChooser
- All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible
JFileChooser provides a simple mechanism for the user to
choose a file.
For information about using JFileChooser, see
How to Use File Choosers,
a section in The Java Tutorial.
The following code pops up a file chooser for the user's home directory that sees only .jpg and .gif images:
JFileChooser chooser = new JFileChooser();
FileNameExtensionFilter filter = new FileNameExtensionFilter(
"JPG & GIF Images", "jpg", "gif");
chooser.setFileFilter(filter);
int returnVal = chooser.showOpenDialog(parent);
if(returnVal == JFileChooser.APPROVE_OPTION) {
System.out.println("You chose to open this file: " +
chooser.getSelectedFile().getName());
}
Warning: Swing is not thread safe. For more information see Swing's Threading Policy.
- Since:
- 1.2
-
Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected classThis class implements accessibility support for theJFileChooserclass.Nested classes/interfaces declared in class JComponent
JComponent.AccessibleJComponentModifier and TypeClassDescriptionclassInner class of JComponent used to provide default support for accessibility.Nested classes/interfaces declared in class Container
Container.AccessibleAWTContainerModifier and TypeClassDescriptionprotected classInner class of Container used to provide default support for accessibility.Nested classes/interfaces declared in class Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategyModifier and TypeClassDescriptionprotected classInner class of Component used to provide default support for accessibility.static enumEnumeration of the common ways the baseline of a component can change as the size changes.protected classInner class for blitting offscreen surfaces to a component.protected classInner class for flipping buffers on a component. -
Field Summary
FieldsModifier and TypeFieldDescriptionstatic final StringIdentifies whether the AcceptAllFileFilter is used or not.protected AccessibleContextAccessibleContextassociated with thisJFileChooserstatic final StringSays that a different accessory component is in use (for example, to preview files).static final StringIdentifies change in the mnemonic for the approve (yes, ok) button.static final StringIdentifies change in the text on the approve (yes, ok) button.static final StringIdentifies change in the tooltip text for the approve (yes, ok) button.static final intReturn value if approve (yes, ok) is chosen.static final StringInstruction to approve the current selection (same as pressing yes or ok).static final intReturn value if cancel is chosen.static final StringInstruction to cancel the current selection.static final StringIdentifies a change in the list of predefined file filters the user can choose from.static final StringInstruction to display the control buttons.static final intType value indicating that theJFileChoosersupports a developer-specified file operation.static final StringIdentifies a change in the dialog title.static final StringIdentifies a change in the type of files displayed (files only, directories only, or both files and directories).static final intInstruction to display only directories.static final StringIdentifies user's directory change.static final intReturn value if an error occurred.static final StringUser changed the kind of files to display.static final StringIdentifies a change in the display-hidden-files property.static final StringIdentifies a change in the kind of selection (single, multiple, etc.).static final StringSays that a different object is being used to find available drives on the system.static final StringSays that a different object is being used to retrieve file information.static final intInstruction to display both files and directories.static final intInstruction to display only files.static final StringEnables multiple-file selections.static final intType value indicating that theJFileChoosersupports an "Open" file operation.static final intType value indicating that theJFileChoosersupports a "Save" file operation.static final StringIdentifies change in user's single-file selection.static final StringIdentifies change in user's multiple-file selection.Fields declared in class JComponent
listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOWModifier and TypeFieldDescriptionprotected EventListenerListA list of event listeners for this component.static final StringThe comment to display when the cursor is over the component, also known as a "value tip", "flyover help", or "flyover label".protected ComponentUIThe look and feel delegate for this component.static final intConstant used by some of the APIs to mean that no condition is defined.static final intConstant used forregisterKeyboardActionthat means that the command should be invoked when the receiving component is an ancestor of the focused component or is itself the focused component.static final intConstant used forregisterKeyboardActionthat means that the command should be invoked when the component has the focus.static final intConstant used forregisterKeyboardActionthat means that the command should be invoked when the receiving component is in the window that has the focus or is itself the focused component.Fields declared in class Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENTModifier and TypeFieldDescriptionstatic final floatEase-of-use constant forgetAlignmentY.static final floatEase-of-use constant forgetAlignmentYandgetAlignmentX.static final floatEase-of-use constant forgetAlignmentX.static final floatEase-of-use constant forgetAlignmentX.static final floatEase-of-use constant forgetAlignmentY().Fields declared in interface ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTHModifier and TypeFieldDescriptionstatic final intThis flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously was aborted before production was complete.static final intThis flag in the infoflags argument to imageUpdate indicates that a static image which was previously drawn is now complete and can be drawn again in its final form.static final intThis flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously has encountered an error.static final intThis flag in the infoflags argument to imageUpdate indicates that another complete frame of a multi-frame image which was previously drawn is now available to be drawn again.static final intThis flag in the infoflags argument to imageUpdate indicates that the height of the base image is now available and can be taken from the height argument to the imageUpdate callback method.static final intThis flag in the infoflags argument to imageUpdate indicates that the properties of the image are now available.static final intThis flag in the infoflags argument to imageUpdate indicates that more pixels needed for drawing a scaled variation of the image are available.static final intThis flag in the infoflags argument to imageUpdate indicates that the width of the base image is now available and can be taken from the width argument to the imageUpdate callback method. -
Constructor Summary
ConstructorsConstructorDescriptionConstructs aJFileChooserpointing to the user's default directory.JFileChooser(File currentDirectory) Constructs aJFileChooserusing the givenFileas the path.JFileChooser(File currentDirectory, FileSystemView fsv) Constructs aJFileChooserusing the given current directory andFileSystemView.JFileChooser(String currentDirectoryPath) Constructs aJFileChooserusing the given path.JFileChooser(String currentDirectoryPath, FileSystemView fsv) Constructs aJFileChooserusing the given current directory path andFileSystemView.Constructs aJFileChooserusing the givenFileSystemView. -
Method Summary
Modifier and TypeMethodDescriptionbooleanReturns true if the file should be displayed.voidAdds anActionListenerto the file chooser.voidaddChoosableFileFilter(FileFilter filter) Adds a filter to the list of user choosable file filters.voidCalled by the UI when the user hits the Approve button (labeled "Open" or "Save", by default).voidCalled by the UI when the user chooses the Cancel button.voidChanges the directory to be set to the parent of the current directory.protected JDialogcreateDialog(Component parent) Creates and returns a newJDialogwrappingthiscentered on theparentin theparent's frame.voidMakes sure that the specified file is viewable, and not hidden.protected voidfireActionPerformed(String command) Notifies all listeners that have registered interest for notification on this event type.Returns theAcceptAllfile filter.Gets the AccessibleContext associated with this JFileChooser.Returns the accessory component.Returns an array of all the action listeners registered on this file chooser.intReturns the approve button's mnemonic.Returns the text used in theApproveButtonin theFileChooserUI.Returns the tooltip text used in theApproveButton.Gets the list of user choosable file filters.booleanReturns the value of thecontrolButtonsAreShownproperty.Returns the current directory.Returns the file description.Gets the string that goes in theJFileChooser's titlebar.intReturns the type of this dialog.booleanGets the value of thedragEnabledproperty.Returns the currently selected file filter.intReturns the current file-selection mode.Returns the file system view.Returns the current file view.Returns the icon for this file or type of file, depending on the system.Returns the filename.Returns the selected file.File[]Returns a list of selected files if the file chooser is set to allow multiple selection.Returns the file type.getUI()Gets the UI object which implements the L&F for this component.Returns a string that specifies the name of the L&F class that renders this component.booleanReturns whether theAcceptAll FileFilteris used.booleanConvenience call that determines if directories are selectable based on the current file selection mode.booleanReturns true if hidden files are not shown in the file chooser; otherwise, returns false.booleanConvenience call that determines if files are selectable based on the current file selection mode.booleanReturns true if multiple files can be selected.booleanReturns true if the file (directory) can be visited.protected StringReturns a string representation of thisJFileChooser.voidRemoves anActionListenerfrom the file chooser.booleanRemoves a filter from the list of user choosable file filters.voidTells the UI to rescan its files list from the current directory.voidResets the choosable file filter list to its starting state.voidsetAcceptAllFileFilterUsed(boolean b) Determines whether theAcceptAll FileFilteris used as an available choice in the choosable filter list.voidsetAccessory(JComponent newAccessory) Sets the accessory component.voidsetApproveButtonMnemonic(char mnemonic) Sets the approve button's mnemonic using a character.voidsetApproveButtonMnemonic(int mnemonic) Sets the approve button's mnemonic using a numeric keycode.voidsetApproveButtonText(String approveButtonText) Sets the text used in theApproveButtonin theFileChooserUI.voidsetApproveButtonToolTipText(String toolTipText) Sets the tooltip text used in theApproveButton.voidsetControlButtonsAreShown(boolean b) Sets the property that indicates whether the approve and cancel buttons are shown in the file chooser.voidsetCurrentDirectory(File dir) Sets the current directory.voidsetDialogTitle(String dialogTitle) Sets the string that goes in theJFileChooserwindow's title bar.voidsetDialogType(int dialogType) Sets the type of this dialog.voidsetDragEnabled(boolean b) Sets thedragEnabledproperty, which must betrueto enable automatic drag handling (the first part of drag and drop) on this component.voidsetEnabled(boolean enabled) Sets whether or not this component is enabled.voidsetFileFilter(FileFilter filter) Sets the current file filter.voidsetFileHidingEnabled(boolean b) Sets file hiding on or off.voidsetFileSelectionMode(int mode) Sets theJFileChooserto allow the user to just select files, just select directories, or select both files and directories.voidSets the file system view that theJFileChooseruses for accessing and creating file system resources, such as finding the floppy drive and getting a list of root drives.voidsetFileView(FileView fileView) Sets the file view to be used to retrieve UI information, such as the icon that represents a file or the type description of a file.voidsetMultiSelectionEnabled(boolean b) Sets the file chooser to allow multiple file selections.voidsetSelectedFile(File file) Sets the selected file.voidsetSelectedFiles(File[] selectedFiles) Sets the list of selected files if the file chooser is set to allow multiple selection.protected voidsetup(FileSystemView view) Performs common constructor initialization and setup.intshowDialog(Component parent, String approveButtonText) Pops a custom file chooser dialog with a custom approve button.intshowOpenDialog(Component parent) Pops up an "Open File" file chooser dialog.intshowSaveDialog(Component parent) Pops up a "Save File" file chooser dialog.voidupdateUI()Resets the UI property to a value from the current look and feel.Methods declared in class JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, 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, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, updateModifier and TypeMethodDescriptionvoidaddAncestorListener(AncestorListener listener) Registerslistenerso that it will receiveAncestorEventswhen it or any of its ancestors move or are made visible or invisible.voidNotifies this component that it now has a parent component.voidAdds aVetoableChangeListenerto the listener list.voidcomputeVisibleRect(Rectangle visibleRect) Returns theComponent's "visible rect rectangle" - the intersection of the visible rectangles for this component and all of its ancestors.booleancontains(int x, int y) Gives the UI delegate an opportunity to define the precise shape of this component for the sake of mouse processing.Returns the instance ofJToolTipthat should be used to display the tooltip.voiddisable()Deprecated.voidenable()Deprecated.As of JDK version 1.1, replaced byjava.awt.Component.setEnabled(boolean).voidfirePropertyChange(String propertyName, boolean oldValue, boolean newValue) Support for reporting bound property changes for boolean properties.voidfirePropertyChange(String propertyName, int oldValue, int newValue) Support for reporting bound property changes for integer properties.protected voidfireVetoableChange(String propertyName, Object oldValue, Object newValue) Supports reporting constrained property changes.getActionForKeyStroke(KeyStroke aKeyStroke) Returns the object that will perform the action registered for a given keystroke.final ActionMapReturns theActionMapused to determine whatActionto fire for particularKeyStrokebinding.floatOverridesContainer.getAlignmentXto return the horizontal alignment.floatOverridesContainer.getAlignmentYto return the vertical alignment.Returns an array of all the ancestor listeners registered on this component.booleanGets theautoscrollsproperty.intgetBaseline(int width, int height) Returns the baseline.Returns an enum indicating how the baseline of the component changes as the size changes.Returns the border of this component ornullif no border is currently set.Stores the bounds of this component into "return value"rvand returnsrv.final ObjectgetClientProperty(Object key) Returns the value of the property with the specified key.protected GraphicsReturns the graphics object used to paint this component.ReturnsJPopupMenuthat assigned for this component.intgetConditionForKeyStroke(KeyStroke aKeyStroke) Returns the condition that determines whether a registered action occurs in response to the specified keystroke.intReturns the state of graphics debugging.static LocaleReturns the default locale used to initialize each JComponent's locale property upon creation.getFontMetrics(Font font) Gets theFontMetricsfor the specifiedFont.Returns this component's graphics context, which lets you draw on a component.intReturns the current height of this component.booleanReturns true if the JPopupMenu should be inherited from the parent.final InputMapReturns theInputMapthat is used when the component has focus.final InputMapgetInputMap(int condition) Returns theInputMapthat is used duringcondition.Returns the input verifier for this component.If a border has been set on this component, returns the border's insets; otherwise callssuper.getInsets.Returns anInsetsobject containing this component's inset values.<T extends EventListener>
T[]getListeners(Class<T> listenerType) Returns an array of all the objects currently registered asFooListeners upon thisJComponent.getLocation(Point rv) Stores the x,y origin of this component into "return value"rvand returnsrv.If the maximum size has been set to a non-nullvalue just returns it.If the minimum size has been set to a non-nullvalue just returns it.Deprecated.As of 1.4, replaced byFocusTraversalPolicy.getPopupLocation(MouseEvent event) Returns the preferred location to display the popup menu in this component's coordinate system.If thepreferredSizehas been set to a non-nullvalue just returns it.Returns theKeyStrokesthat will initiate registered actions.Returns theJRootPaneancestor for this component.Stores the width/height of this component into "return value"rvand returnsrv.getToolTipLocation(MouseEvent event) Returns the tooltip location in this component's coordinate system.Returns the tooltip string that has been set withsetToolTipText.getToolTipText(MouseEvent event) Returns the string to be used as the tooltip for event.Returns the top-level ancestor of this component (the containingWindow) ornullif this component has not been added to any container.Gets thetransferHandlerproperty.booleanReturns the value that indicates whether the input verifier for the current focus owner will be called before this component requests focus.Returns an array of all the vetoable change listeners registered on this component.Returns theComponent's "visible rectangle" - the intersection of this component's visible rectangle,new Rectangle(0, 0, getWidth(), getHeight()), and all of its ancestors' visible rectangles.intgetWidth()Returns the current width of this component.intgetX()Returns the current x coordinate of the component's origin.intgetY()Returns the current y coordinate of the component's origin.voidRequests that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.voidhide()Deprecated.booleanReturns whether this component should use a buffer to paint.static booleanReturns true if this component is lightweight, that is, if it doesn't have a native window system peer.booleanDeprecated.As of 1.4, replaced byComponent.setFocusTraversalKeys(int, Set)andContainer.setFocusCycleRoot(boolean).booleanisOpaque()Returns true if this component is completely opaque.booleanReturns true if this component tiles its children -- that is, if it can guarantee that the children will not overlap.final booleanReturnstrueif the current painting operation on this component is part of aprintoperation.protected booleanReturnstrueif a paint triggered on a child component should cause painting to originate from this Component, or one of its ancestors.booleanReturns true if the component is currently painting a tile.booleanReturnstrueif thisJComponentshould get focus; otherwise returnsfalse.booleanIf this method returns true,revalidatecalls by descendants of this component will cause the entire tree beginning with this root to be validated.voidInvoked by Swing to draw components.protected voidPaints the component's border.protected voidPaints this component's children.protected voidCalls the UI delegate's paint method, if the UI delegate is non-null.voidpaintImmediately(int x, int y, int w, int h) Paints the specified region in this component and all of its descendants that overlap the region, immediately.voidPaints the specified region now.voidInvoke this method to print the component to the specifiedGraphics.voidInvoke this method to print the component.protected voidPrints the component's border.protected voidPrints this component's children.protected voidThis is invoked during a printing operation.protected voidProcesses any key events that the component itself recognizes.protected booleanprocessKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed) Invoked to process the key bindings forksas the result of theKeyEvente.protected voidOverridesprocessKeyEventto process events.protected voidProcesses mouse events occurring on this component by dispatching them to any registeredMouseListenerobjects, refer toComponent.processMouseEvent(MouseEvent)for a complete description of this method.protected voidProcesses mouse motion events, such as MouseEvent.MOUSE_DRAGGED.final voidputClientProperty(Object key, Object value) Adds an arbitrary key/value "client property" to this component.voidregisterKeyboardAction(ActionListener anAction, String aCommand, KeyStroke aKeyStroke, int aCondition) This method is now obsolete, please use a combination ofgetActionMap()andgetInputMap()for similar behavior.voidregisterKeyboardAction(ActionListener anAction, KeyStroke aKeyStroke, int aCondition) This method is now obsolete, please use a combination ofgetActionMap()andgetInputMap()for similar behavior.voidremoveAncestorListener(AncestorListener listener) Unregisterslistenerso that it will no longer receiveAncestorEvents.voidNotifies this component that it no longer has a parent component.voidRemoves aVetoableChangeListenerfrom the listener list.voidrepaint(long tm, int x, int y, int width, int height) Adds the specified region to the dirty region list if the component is showing.voidAdds the specified region to the dirty region list if the component is showing.booleanDeprecated.As of 1.4, replaced byFocusTraversalPolicy.getDefaultComponent(Container).requestFocus()voidRequests that thisComponentgets the input focus.booleanrequestFocus(boolean temporary) Requests that thisComponentgets the input focus.booleanRequests that thisComponentgets the input focus.protected booleanrequestFocusInWindow(boolean temporary) Requests that thisComponentgets the input focus.voidUnregisters all the bindings in the first tierInputMapsandActionMap.voidreshape(int x, int y, int w, int h) Deprecated.As of JDK 5, replaced byComponent.setBounds(int, int, int, int).voidSupports deferred automatic layout.voidscrollRectToVisible(Rectangle aRect) Forwards thescrollRectToVisible()message to theJComponent's parent.final voidSets theActionMaptoam.voidsetAlignmentX(float alignmentX) Sets the horizontal alignment.voidsetAlignmentY(float alignmentY) Sets the vertical alignment.voidsetAutoscrolls(boolean autoscrolls) Sets theautoscrollsproperty.voidsetBackground(Color bg) Sets the background color of this component.voidSets the border of this component.voidsetComponentPopupMenu(JPopupMenu popup) Sets theJPopupMenufor thisJComponent.voidsetDebugGraphicsOptions(int debugOptions) Enables or disables diagnostic information about every graphics operation performed within the component or one of its children.static voidSets the default locale used to initialize each JComponent's locale property upon creation.voidsetDoubleBuffered(boolean aFlag) Sets whether this component should use a buffer to paint.voidsetFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes) Sets the focus traversal keys for a given traversal operation for this Component.voidSets the font for this component.voidsetForeground(Color fg) Sets the foreground color of this component.voidsetInheritsPopupMenu(boolean value) Sets whether or notgetComponentPopupMenushould delegate to the parent if this component does not have aJPopupMenuassigned to it.final voidsetInputMap(int condition, InputMap map) Sets theInputMapto use under the conditionconditiontomap.voidsetInputVerifier(InputVerifier inputVerifier) Sets the input verifier for this component.voidsetMaximumSize(Dimension maximumSize) Sets the maximum size of this component to a constant value.voidsetMinimumSize(Dimension minimumSize) Sets the minimum size of this component to a constant value.voidsetNextFocusableComponent(Component aComponent) Deprecated.As of 1.4, replaced byFocusTraversalPolicyvoidsetOpaque(boolean isOpaque) If true the component paints every pixel within its bounds.voidsetPreferredSize(Dimension preferredSize) Sets the preferred size of this component.voidsetRequestFocusEnabled(boolean requestFocusEnabled) Provides a hint as to whether or not thisJComponentshould get focus.voidsetToolTipText(String text) Registers the text to display in a tool tip.voidsetTransferHandler(TransferHandler newHandler) Sets theTransferHandler, which provides support for transfer of data into and out of this component via cut/copy/paste and drag and drop.protected voidsetUI(ComponentUI newUI) Sets the look and feel delegate for this component.voidsetVerifyInputWhenFocusTarget(boolean verifyInputWhenFocusTarget) Sets the value to indicate whether input verifier for the current focus owner will be called before this component requests focus.voidsetVisible(boolean aFlag) Makes the component visible or invisible.voidunregisterKeyboardAction(KeyStroke aKeyStroke) This method is now obsolete.voidCallspaint.Methods declared in class Container
add, 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, validateTreeModifier and TypeMethodDescriptionAppends the specified component to the end of this container.Adds the specified component to this container at the given position.voidAdds the specified component to the end of this container.voidAdds the specified component to this container with the specified constraints at the specified index.Adds the specified component to this container.voidAdds the specified container listener to receive container events from this container.protected voidAdds the specified component to this container at the specified index.voidAdds a PropertyChangeListener to the listener list.voidaddPropertyChangeListener(String propertyName, PropertyChangeListener listener) Adds a PropertyChangeListener to the listener list for a specific property.voidSets theComponentOrientationproperty of this container and all components contained within it.booleanareFocusTraversalKeysSet(int id) Returns whether the Set of focus traversal keys for the given focus traversal operation has been explicitly defined for this Container.intDeprecated.As of JDK version 1.1, replaced by getComponentCount().voidDeprecated.As of JDK version 1.1, replaced bydispatchEvent(AWTEvent e)voiddoLayout()Causes this container to lay out its components.findComponentAt(int x, int y) Locates the visible child component that contains the specified position.Locates the visible child component that contains the specified point.getComponent(int n) Gets the nth component in this container.getComponentAt(int x, int y) Locates the component that contains the x,y position.Gets the component that contains the specified point.intGets the number of components in this panel.Gets all the components in this container.intgetComponentZOrder(Component comp) Returns the z-order index of the component inside the container.Returns an array of all the container listeners registered on this container.getFocusTraversalKeys(int id) Returns the Set of focus traversal keys for a given traversal operation for this Container.Returns the focus traversal policy that will manage keyboard traversal of this Container's children, or null if this Container is not a focus cycle root.Gets the layout manager for this container.getMousePosition(boolean allowChildren) Returns the position of the mouse pointer in thisContainer's coordinate space if theContaineris under the mouse pointer, otherwise returnsnull.insets()Deprecated.As of JDK version 1.1, replaced bygetInsets().voidInvalidates the container.booleanChecks if the component is contained in the component hierarchy of this container.booleanReturns whether this Container is the root of a focus traversal cycle.booleanisFocusCycleRoot(Container container) Returns whether the specified Container is the focus cycle root of this Container's focus traversal cycle.final booleanReturns whether this container provides focus traversal policy.booleanReturns whether the focus traversal policy has been explicitly set for this Container.voidlayout()Deprecated.As of JDK version 1.1, replaced bydoLayout().voidlist(PrintStream out, int indent) Prints a listing of this container to the specified output stream.voidlist(PrintWriter out, int indent) Prints out a list, starting at the specified indentation, to the specified print writer.locate(int x, int y) Deprecated.As of JDK version 1.1, replaced bygetComponentAt(int, int).Deprecated.As of JDK version 1.1, replaced bygetMinimumSize().voidPaints each of the components in this container.Deprecated.As of JDK version 1.1, replaced bygetPreferredSize().voidPrints each of the components in this container.protected voidProcesses container events occurring on this container by dispatching them to any registered ContainerListener objects.protected voidProcesses events on this container.voidremove(int index) Removes the component, specified byindex, from this container.voidRemoves the specified component from this container.voidRemoves all the components from this container.voidRemoves the specified container listener so it no longer receives container events from this container.voidsetComponentZOrder(Component comp, int index) Moves the specified component to the specified z-order index in the container.voidsetFocusCycleRoot(boolean focusCycleRoot) Sets whether this Container is the root of a focus traversal cycle.voidSets the focus traversal policy that will manage keyboard traversal of this Container's children, if this Container is a focus cycle root.final voidsetFocusTraversalPolicyProvider(boolean provider) Sets whether this container will be used to provide focus traversal policy.voidsetLayout(LayoutManager mgr) Sets the layout manager for this container.voidTransfers the focus down one focus traversal cycle.voidvalidate()Validates this container and all of its subcomponents.protected voidRecursively descends the container tree and recomputes the layout for any subtrees marked as needing it (those marked as invalid).Methods declared in class Component
action, 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, 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, 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, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycleModifier and TypeMethodDescriptionbooleanDeprecated.As of JDK version 1.1, should register this component as ActionListener on component which fires action events.voidAdds the specified popup menu to the component.voidAdds the specified component listener to receive component events from this component.voidAdds the specified focus listener to receive focus events from this component when this component gains input focus.voidAdds the specified hierarchy bounds listener to receive hierarchy bounds events from this component when the hierarchy to which this container belongs changes.voidAdds the specified hierarchy listener to receive hierarchy changed events from this component when the hierarchy to which this container belongs changes.voidAdds the specified input method listener to receive input method events from this component.voidAdds the specified key listener to receive key events from this component.voidAdds the specified mouse listener to receive mouse events from this component.voidAdds the specified mouse motion listener to receive mouse motion events from this component.voidAdds the specified mouse wheel listener to receive mouse wheel events from this component.bounds()Deprecated.As of JDK version 1.1, replaced bygetBounds().intcheckImage(Image image, int width, int height, ImageObserver observer) Returns the status of the construction of a screen representation of the specified image.intcheckImage(Image image, ImageObserver observer) Returns the status of the construction of a screen representation of the specified image.protected AWTEventcoalesceEvents(AWTEvent existingEvent, AWTEvent newEvent) Potentially coalesce an event being posted with an existing event.booleanChecks whether this component "contains" the specified point, where the point's x and y coordinates are defined to be relative to the coordinate system of this component.createImage(int width, int height) Creates an off-screen drawable image to be used for double buffering.createImage(ImageProducer producer) Creates an image from the specified image producer.createVolatileImage(int width, int height) Creates a volatile off-screen drawable image to be used for double buffering.createVolatileImage(int width, int height, ImageCapabilities caps) Creates a volatile off-screen drawable image, with the given capabilities.protected final voiddisableEvents(long eventsToDisable) Disables the events defined by the specified event mask parameter from being delivered to this component.final voidDispatches an event to this component or one of its sub components.voidenable(boolean b) Deprecated.As of JDK version 1.1, replaced bysetEnabled(boolean).protected final voidenableEvents(long eventsToEnable) Enables the events defined by the specified event mask parameter to be delivered to this component.voidenableInputMethods(boolean enable) Enables or disables input method support for this component.voidfirePropertyChange(String propertyName, byte oldValue, byte newValue) Reports a bound property change.voidfirePropertyChange(String propertyName, char oldValue, char newValue) Reports a bound property change.voidfirePropertyChange(String propertyName, double oldValue, double newValue) Reports a bound property change.voidfirePropertyChange(String propertyName, float oldValue, float newValue) Reports a bound property change.voidfirePropertyChange(String propertyName, long oldValue, long newValue) Reports a bound property change.voidfirePropertyChange(String propertyName, short oldValue, short newValue) Reports a bound property change.protected voidfirePropertyChange(String propertyName, Object oldValue, Object newValue) Support for reporting bound property changes for Object properties.Gets the background color of this component.Gets the bounds of this component in the form of aRectangleobject.Gets the instance ofColorModelused to display the component on the output device.Returns an array of all the component listeners registered on this component.Retrieves the language-sensitive orientation that is to be used to order the elements or text within this component.Gets the cursor set in the component.Gets theDropTargetassociated with thisComponent.Returns the Container which is the focus cycle root of this Component's focus traversal cycle.Returns an array of all the focus listeners registered on this component.booleanReturns whether focus traversal keys are enabled for this Component.getFont()Gets the font of this component.Gets the foreground color of this component.Gets theGraphicsConfigurationassociated with thisComponent.Returns an array of all the hierarchy bounds listeners registered on this component.Returns an array of all the hierarchy listeners registered on this component.booleanReturns whether or not paint messages received from the operating system should be ignored.Gets the input context used by this component for handling the communication with input methods when text is entered in this component.Returns an array of all the input method listeners registered on this component.Gets the input method request handler which supports requests from input methods for this component.Returns an array of all the key listeners registered on this component.Gets the locale of this component.Gets the location of this component in the form of a point specifying the component's top-left corner.Gets the location of this component in the form of a point specifying the component's top-left corner in the screen's coordinate space.Returns an array of all the mouse listeners registered on this component.Returns an array of all the mouse motion listeners registered on this component.Returns the position of the mouse pointer in thisComponent's coordinate space if theComponentis directly under the mouse pointer, otherwise returnsnull.Returns an array of all the mouse wheel listeners registered on this component.getName()Gets the name of the component.Gets the parent of this component.Returns an array of all the property change listeners registered on this component.getPropertyChangeListeners(String propertyName) Returns an array of all the listeners which have been associated with the named property.getSize()Returns the size of this component in the form of aDimensionobject.Gets the toolkit of this component.final ObjectGets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.booleanDeprecated.As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).booleanhandleEvent(Event evt) Deprecated.As of JDK version 1.1 replaced by processEvent(AWTEvent).booleanhasFocus()Returnstrueif thisComponentis the focus owner.booleanimageUpdate(Image img, int infoflags, int x, int y, int w, int h) Repaints the component when the image has changed.booleaninside(int x, int y) Deprecated.As of JDK version 1.1, replaced by contains(int, int).booleanReturns whether the background color has been explicitly set for this Component.booleanReturns whether the cursor has been explicitly set for this Component.booleanDetermines whether this component is displayable.booleanDetermines whether this component is enabled.booleanReturns whether this Component can be focused.booleanReturnstrueif thisComponentis the focus owner.booleanDeprecated.As of 1.4, replaced byisFocusable().booleanReturns whether the font has been explicitly set for this Component.booleanReturns whether the foreground color has been explicitly set for this Component.booleanA lightweight component doesn't have a native toolkit peer.booleanReturns true if the maximum size has been set to a non-nullvalue otherwise returns false.booleanReturns whether or notsetMinimumSizehas been invoked with a non-null value.booleanReturns true if the preferred size has been set to a non-nullvalue otherwise returns false.booleanDetermines whether this component is showing on screen.booleanisValid()Determines whether this component is valid.booleanDetermines whether this component should be visible when its parent is visible.booleanDeprecated.As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).booleanDeprecated.As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).voidlist()Prints a listing of this component to the standard system output streamSystem.out.voidlist(PrintStream out) Prints a listing of this component to the specified output stream.voidlist(PrintWriter out) Prints a listing to the specified print writer.location()Deprecated.As of JDK version 1.1, replaced bygetLocation().booleanDeprecated.As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).booleanDeprecated.As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).booleanDeprecated.As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).booleanmouseEnter(Event evt, int x, int y) Deprecated.As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).booleanDeprecated.As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).booleanDeprecated.As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).booleanDeprecated.As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).voidmove(int x, int y) Deprecated.As of JDK version 1.1, replaced bysetLocation(int, int).voidDeprecated.As of JDK version 1.1, replaced by transferFocus().voidPaints this component and all of its subcomponents.booleanDeprecated.As of JDK version 1.1, replaced by dispatchEvent(AWTEvent).booleanprepareImage(Image image, int width, int height, ImageObserver observer) Prepares an image for rendering on this component at the specified width and height.booleanprepareImage(Image image, ImageObserver observer) Prepares an image for rendering on this component.protected voidProcesses component events occurring on this component by dispatching them to any registeredComponentListenerobjects.protected voidProcesses focus events occurring on this component by dispatching them to any registeredFocusListenerobjects.protected voidProcesses hierarchy bounds events occurring on this component by dispatching them to any registeredHierarchyBoundsListenerobjects.protected voidProcesses hierarchy events occurring on this component by dispatching them to any registeredHierarchyListenerobjects.protected voidProcesses input method events occurring on this component by dispatching them to any registeredInputMethodListenerobjects.protected voidProcesses mouse wheel events occurring on this component by dispatching them to any registeredMouseWheelListenerobjects.voidremove(MenuComponent popup) Removes the specified popup menu from the component.voidRemoves the specified component listener so that it no longer receives component events from this component.voidRemoves the specified focus listener so that it no longer receives focus events from this component.voidRemoves the specified hierarchy bounds listener so that it no longer receives hierarchy bounds events from this component.voidRemoves the specified hierarchy listener so that it no longer receives hierarchy changed events from this component.voidRemoves the specified input method listener so that it no longer receives input method events from this component.voidRemoves the specified key listener so that it no longer receives key events from this component.voidRemoves the specified mouse listener so that it no longer receives mouse events from this component.voidRemoves the specified mouse motion listener so that it no longer receives mouse motion events from this component.voidRemoves the specified mouse wheel listener so that it no longer receives mouse wheel events from this component.voidRemoves a PropertyChangeListener from the listener list.voidremovePropertyChangeListener(String propertyName, PropertyChangeListener listener) Removes aPropertyChangeListenerfrom the listener list for a specific property.voidrepaint()Repaints this component.voidrepaint(int x, int y, int width, int height) Repaints the specified rectangle of this component.voidrepaint(long tm) Repaints the component.protected booleanrequestFocus(boolean temporary, FocusEvent.Cause cause) Requests by the reason ofcausethat thisComponentget the input focus, and that thisComponent's top-level ancestor become the focusedWindow.voidrequestFocus(FocusEvent.Cause cause) Requests by the reason ofcausethat this Component get the input focus, and that this Component's top-level ancestor become the focused Window.booleanRequests by the reason ofcausethat this Component get the input focus, if this Component's top-level ancestor is already the focused Window.voidresize(int width, int height) Deprecated.As of JDK version 1.1, replaced bysetSize(int, int).voidDeprecated.As of JDK version 1.1, replaced bysetSize(Dimension).voidsetBounds(int x, int y, int width, int height) Moves and resizes this component.voidMoves and resizes this component to conform to the new bounding rectangler.voidSets the language-sensitive orientation that is to be used to order the elements or text within this component.voidSets the cursor image to the specified cursor.voidAssociate aDropTargetwith this component.voidsetFocusable(boolean focusable) Sets the focusable state of this Component to the specified value.voidsetFocusTraversalKeysEnabled(boolean focusTraversalKeysEnabled) Sets whether focus traversal keys are enabled for this Component.voidsetIgnoreRepaint(boolean ignoreRepaint) Sets whether or not paint messages received from the operating system should be ignored.voidSets the locale of this component.voidsetLocation(int x, int y) Moves this component to a new location.voidsetLocation(Point p) Moves this component to a new location.voidsetMixingCutoutShape(Shape shape) Sets a 'mixing-cutout' shape for this lightweight component.voidSets the name of the component to the specified string.voidsetSize(int width, int height) Resizes this component so that it has widthwidthand heightheight.voidResizes this component so that it has widthd.widthand heightd.height.voidshow()Deprecated.As of JDK version 1.1, replaced bysetVisible(boolean).voidshow(boolean b) Deprecated.As of JDK version 1.1, replaced bysetVisible(boolean).size()Deprecated.As of JDK version 1.1, replaced bygetSize().toString()Returns a string representation of this component and its values.voidTransfers the focus to the next component, as though this Component were the focus owner.voidTransfers the focus to the previous component, as though this Component were the focus owner.voidTransfers the focus up one focus traversal cycle.Methods declared in class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitModifier and TypeMethodDescriptionprotected Objectclone()Creates and returns a copy of this object.booleanIndicates whether some other object is "equal to" this one.protected voidfinalize()Deprecated, for removal: This API element is subject to removal in a future version.Finalization is deprecated and subject to removal in a future release.final Class<?> getClass()Returns the runtime class of thisObject.inthashCode()Returns a hash code value for this object.final voidnotify()Wakes up a single thread that is waiting on this object's monitor.final voidWakes up all threads that are waiting on this object's monitor.final voidwait()Causes the current thread to wait until it is awakened, typically by being notified or interrupted.final voidwait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.final voidwait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
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Field Details
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OPEN_DIALOG
public static final int OPEN_DIALOGType value indicating that theJFileChoosersupports an "Open" file operation.- See Also:
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SAVE_DIALOG
public static final int SAVE_DIALOGType value indicating that theJFileChoosersupports a "Save" file operation.- See Also:
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CUSTOM_DIALOG
public static final int CUSTOM_DIALOGType value indicating that theJFileChoosersupports a developer-specified file operation.- See Also:
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CANCEL_OPTION
public static final int CANCEL_OPTIONReturn value if cancel is chosen.- See Also:
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APPROVE_OPTION
public static final int APPROVE_OPTIONReturn value if approve (yes, ok) is chosen.- See Also:
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ERROR_OPTION
public static final int ERROR_OPTIONReturn value if an error occurred.- See Also:
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FILES_ONLY
public static final int FILES_ONLYInstruction to display only files.- See Also:
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DIRECTORIES_ONLY
public static final int DIRECTORIES_ONLYInstruction to display only directories.- See Also:
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FILES_AND_DIRECTORIES
public static final int FILES_AND_DIRECTORIESInstruction to display both files and directories.- See Also:
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CANCEL_SELECTION
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APPROVE_SELECTION
Instruction to approve the current selection (same as pressing yes or ok).- See Also:
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APPROVE_BUTTON_TEXT_CHANGED_PROPERTY
Identifies change in the text on the approve (yes, ok) button.- See Also:
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APPROVE_BUTTON_TOOL_TIP_TEXT_CHANGED_PROPERTY
Identifies change in the tooltip text for the approve (yes, ok) button.- See Also:
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APPROVE_BUTTON_MNEMONIC_CHANGED_PROPERTY
Identifies change in the mnemonic for the approve (yes, ok) button.- See Also:
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CONTROL_BUTTONS_ARE_SHOWN_CHANGED_PROPERTY
Instruction to display the control buttons.- See Also:
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DIRECTORY_CHANGED_PROPERTY
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SELECTED_FILE_CHANGED_PROPERTY
Identifies change in user's single-file selection.- See Also:
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SELECTED_FILES_CHANGED_PROPERTY
Identifies change in user's multiple-file selection.- See Also:
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MULTI_SELECTION_ENABLED_CHANGED_PROPERTY
Enables multiple-file selections.- See Also:
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FILE_SYSTEM_VIEW_CHANGED_PROPERTY
Says that a different object is being used to find available drives on the system.- See Also:
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FILE_VIEW_CHANGED_PROPERTY
Says that a different object is being used to retrieve file information.- See Also:
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FILE_HIDING_CHANGED_PROPERTY
Identifies a change in the display-hidden-files property.- See Also:
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FILE_FILTER_CHANGED_PROPERTY
User changed the kind of files to display.- See Also:
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FILE_SELECTION_MODE_CHANGED_PROPERTY
Identifies a change in the kind of selection (single, multiple, etc.).- See Also:
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ACCESSORY_CHANGED_PROPERTY
Says that a different accessory component is in use (for example, to preview files).- See Also:
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ACCEPT_ALL_FILE_FILTER_USED_CHANGED_PROPERTY
Identifies whether the AcceptAllFileFilter is used or not.- See Also:
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DIALOG_TITLE_CHANGED_PROPERTY
Identifies a change in the dialog title.- See Also:
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DIALOG_TYPE_CHANGED_PROPERTY
Identifies a change in the type of files displayed (files only, directories only, or both files and directories).- See Also:
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CHOOSABLE_FILE_FILTER_CHANGED_PROPERTY
Identifies a change in the list of predefined file filters the user can choose from.- See Also:
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accessibleContext
AccessibleContextassociated with thisJFileChooser
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Constructor Details
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JFileChooser
public JFileChooser()Constructs aJFileChooserpointing to the user's default directory. This default depends on the operating system. It is typically the "Documents" folder on Windows, and the user's home directory on Unix. -
JFileChooser
Constructs aJFileChooserusing the given path. Passing in anullstring causes the file chooser to point to the user's default directory. This default depends on the operating system. It is typically the "Documents" folder on Windows, and the user's home directory on Unix.- Parameters:
currentDirectoryPath- aStringgiving the path to a file or directory
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JFileChooser
Constructs aJFileChooserusing the givenFileas the path. Passing in anullfile causes the file chooser to point to the user's default directory. This default depends on the operating system. It is typically the "Documents" folder on Windows, and the user's home directory on Unix.- Parameters:
currentDirectory- aFileobject specifying the path to a file or directory
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JFileChooser
Constructs aJFileChooserusing the givenFileSystemView.- Parameters:
fsv- aFileSystemView
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JFileChooser
Constructs aJFileChooserusing the given current directory andFileSystemView.- Parameters:
currentDirectory- aFileobject specifying the path to a file or directoryfsv- aFileSystemView
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JFileChooser
Constructs aJFileChooserusing the given current directory path andFileSystemView.- Parameters:
currentDirectoryPath- aStringspecifying the path to a file or directoryfsv- aFileSystemView
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Method Details
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setup
Performs common constructor initialization and setup.- Parameters:
view- theFileSystemViewused for setup
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setDragEnabled
@BeanProperty(bound=false, description="determines whether automatic drag handling is enabled") public void setDragEnabled(boolean b) Sets thedragEnabledproperty, which must betrueto enable automatic drag handling (the first part of drag and drop) on this component. ThetransferHandlerproperty needs to be set to a non-nullvalue for the drag to do anything. The default value of thedragEnabledproperty isfalse.When automatic drag handling is enabled, most look and feels begin a drag-and-drop operation whenever the user presses the mouse button over an item and then moves the mouse a few pixels. Setting this property to
truecan therefore have a subtle effect on how selections behave.Some look and feels might not support automatic drag and drop; they will ignore this property. You can work around such look and feels by modifying the component to directly call the
exportAsDragmethod of aTransferHandler.- Parameters:
b- the value to set thedragEnabledproperty to- Throws:
HeadlessException- ifbistrueandGraphicsEnvironment.isHeadless()returnstrue- Since:
- 1.4
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getDragEnabled
public boolean getDragEnabled()Gets the value of thedragEnabledproperty.- Returns:
- the value of the
dragEnabledproperty - Since:
- 1.4
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getSelectedFile
Returns the selected file. This can be set either by the programmer viasetSelectedFileor by a user action, such as either typing the filename into the UI or selecting the file from a list in the UI.- Returns:
- the selected file
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setSelectedFile
Sets the selected file. If the file's parent directory is not the current directory, changes the current directory to be the file's parent directory.- Parameters:
file- the selected file- See Also:
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getSelectedFiles
Returns a list of selected files if the file chooser is set to allow multiple selection.- Returns:
- an array of selected
Files
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setSelectedFiles
@BeanProperty(description="The list of selected files if the chooser is in multiple selection mode.") public void setSelectedFiles(File[] selectedFiles) Sets the list of selected files if the file chooser is set to allow multiple selection.- Parameters:
selectedFiles- an arrayFiles to be selected
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getCurrentDirectory
Returns the current directory.- Returns:
- the current directory
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setCurrentDirectory
@BeanProperty(preferred=true, description="The directory that the JFileChooser is showing files of.") public void setCurrentDirectory(File dir) Sets the current directory. Passing innullsets the file chooser to point to the user's default directory. This default depends on the operating system. It is typically the "Documents" folder on Windows, and the user's home directory on Unix. If the file passed in ascurrentDirectoryis not a directory, the parent of the file will be used as the currentDirectory. If the parent is not traversable, then it will walk up the parent tree until it finds a traversable directory, or hits the root of the file system.- Parameters:
dir- the current directory to point to- See Also:
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changeToParentDirectory
public void changeToParentDirectory()Changes the directory to be set to the parent of the current directory.- See Also:
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rescanCurrentDirectory
public void rescanCurrentDirectory()Tells the UI to rescan its files list from the current directory. -
ensureFileIsVisible
Makes sure that the specified file is viewable, and not hidden.- Parameters:
f- a File object
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showOpenDialog
Pops up an "Open File" file chooser dialog. Note that the text that appears in the approve button is determined by the L&F.- Parameters:
parent- the parent component of the dialog, can benull; seeshowDialogfor details- Returns:
- the return state of the file chooser on popdown:
- JFileChooser.CANCEL_OPTION
- JFileChooser.APPROVE_OPTION
- JFileChooser.ERROR_OPTION if an error occurs or the dialog is dismissed
- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- See Also:
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showSaveDialog
Pops up a "Save File" file chooser dialog. Note that the text that appears in the approve button is determined by the L&F.- Parameters:
parent- the parent component of the dialog, can benull; seeshowDialogfor details- Returns:
- the return state of the file chooser on popdown:
- JFileChooser.CANCEL_OPTION
- JFileChooser.APPROVE_OPTION
- JFileChooser.ERROR_OPTION if an error occurs or the dialog is dismissed
- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- See Also:
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showDialog
Pops a custom file chooser dialog with a custom approve button. For example, the following code pops up a file chooser with a "Run Application" button (instead of the normal "Save" or "Open" button):filechooser.showDialog(parentFrame, "Run Application");
Alternatively, the following code does the same thing:JFileChooser chooser = new JFileChooser(null); chooser.setApproveButtonText("Run Application"); chooser.showDialog(parentFrame, null);The
parentargument determines two things: the frame on which the open dialog depends and the component whose position the look and feel should consider when placing the dialog. If the parent is aFrameobject (such as aJFrame) then the dialog depends on the frame and the look and feel positions the dialog relative to the frame (for example, centered over the frame). If the parent is a component, then the dialog depends on the frame containing the component, and is positioned relative to the component (for example, centered over the component). If the parent isnull, then the dialog depends on no visible window, and it's placed in a look-and-feel-dependent position such as the center of the screen.- Parameters:
parent- the parent component of the dialog; can benullapproveButtonText- the text of theApproveButton- Returns:
- the return state of the file chooser on popdown:
- JFileChooser.CANCEL_OPTION
- JFileChooser.APPROVE_OPTION
- JFileChooser.ERROR_OPTION if an error occurs or the dialog is dismissed
- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- See Also:
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createDialog
Creates and returns a newJDialogwrappingthiscentered on theparentin theparent's frame. This method can be overridden to further manipulate the dialog, to disable resizing, set the location, etc. Example:class MyFileChooser extends JFileChooser { protected JDialog createDialog(Component parent) throws HeadlessException { JDialog dialog = super.createDialog(parent); dialog.setLocation(300, 200); dialog.setResizable(false); return dialog; } }- Parameters:
parent- the parent component of the dialog; can benull- Returns:
- a new
JDialogcontaining this instance - Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- Since:
- 1.4
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getControlButtonsAreShown
public boolean getControlButtonsAreShown()Returns the value of thecontrolButtonsAreShownproperty.- Returns:
- the value of the
controlButtonsAreShownproperty - Since:
- 1.3
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setControlButtonsAreShown
@BeanProperty(preferred=true, description="Sets whether the approve & cancel buttons are shown.") public void setControlButtonsAreShown(boolean b) Sets the property that indicates whether the approve and cancel buttons are shown in the file chooser. This property istrueby default. Look and feels that always show these buttons will ignore the value of this property. This method fires a property-changed event, using the string value ofCONTROL_BUTTONS_ARE_SHOWN_CHANGED_PROPERTYas the name of the property.- Parameters:
b-falseif control buttons should not be shown; otherwise,true- Since:
- 1.3
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getDialogType
public int getDialogType()Returns the type of this dialog. The default isJFileChooser.OPEN_DIALOG.- Returns:
- the type of dialog to be displayed:
- JFileChooser.OPEN_DIALOG
- JFileChooser.SAVE_DIALOG
- JFileChooser.CUSTOM_DIALOG
- See Also:
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setDialogType
@BeanProperty(preferred=true, enumerationValues={"JFileChooser.OPEN_DIALOG","JFileChooser.SAVE_DIALOG","JFileChooser.CUSTOM_DIALOG"}, description="The type (open, save, custom) of the JFileChooser.") public void setDialogType(int dialogType) Sets the type of this dialog. UseOPEN_DIALOGwhen you want to bring up a file chooser that the user can use to open a file. Likewise, useSAVE_DIALOGfor letting the user choose a file for saving. UseCUSTOM_DIALOGwhen you want to use the file chooser in a context other than "Open" or "Save". For instance, you might want to bring up a file chooser that allows the user to choose a file to execute. Note that you normally would not need to set theJFileChooserto useCUSTOM_DIALOGsince a call tosetApproveButtonTextdoes this for you. The default dialog type isJFileChooser.OPEN_DIALOG.- Parameters:
dialogType- the type of dialog to be displayed:- JFileChooser.OPEN_DIALOG
- JFileChooser.SAVE_DIALOG
- JFileChooser.CUSTOM_DIALOG
- Throws:
IllegalArgumentException- ifdialogTypeis not legal- See Also:
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setDialogTitle
@BeanProperty(preferred=true, description="The title of the JFileChooser dialog window.") public void setDialogTitle(String dialogTitle) Sets the string that goes in theJFileChooserwindow's title bar.- Parameters:
dialogTitle- the newStringfor the title bar- See Also:
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getDialogTitle
Gets the string that goes in theJFileChooser's titlebar.- Returns:
- the string from the
JFileChooserwindow's title bar - See Also:
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setApproveButtonToolTipText
@BeanProperty(preferred=true, description="The tooltip text for the ApproveButton.") public void setApproveButtonToolTipText(String toolTipText) Sets the tooltip text used in theApproveButton. Ifnull, the UI object will determine the button's text.- Parameters:
toolTipText- the tooltip text for the approve button- See Also:
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getApproveButtonToolTipText
Returns the tooltip text used in theApproveButton. Ifnull, the UI object will determine the button's text.- Returns:
- the tooltip text used for the approve button
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getApproveButtonMnemonic
public int getApproveButtonMnemonic()Returns the approve button's mnemonic.- Returns:
- an integer value for the mnemonic key
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setApproveButtonMnemonic
@BeanProperty(preferred=true, description="The mnemonic key accelerator for the ApproveButton.") public void setApproveButtonMnemonic(int mnemonic) Sets the approve button's mnemonic using a numeric keycode.- Parameters:
mnemonic- an integer value for the mnemonic key- See Also:
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setApproveButtonMnemonic
public void setApproveButtonMnemonic(char mnemonic) Sets the approve button's mnemonic using a character.- Parameters:
mnemonic- a character value for the mnemonic key- See Also:
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setApproveButtonText
@BeanProperty(preferred=true, description="The text that goes in the ApproveButton.") public void setApproveButtonText(String approveButtonText) Sets the text used in theApproveButtonin theFileChooserUI.- Parameters:
approveButtonText- the text used in theApproveButton- See Also:
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getApproveButtonText
Returns the text used in theApproveButtonin theFileChooserUI. Ifnull, the UI object will determine the button's text. Typically, this would be "Open" or "Save".- Returns:
- the text used in the
ApproveButton - See Also:
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getChoosableFileFilters
Gets the list of user choosable file filters.- Returns:
- a
FileFilterarray containing all the choosable file filters - See Also:
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addChoosableFileFilter
@BeanProperty(preferred=true, description="Adds a filter to the list of user choosable file filters.") public void addChoosableFileFilter(FileFilter filter) Adds a filter to the list of user choosable file filters. For information on setting the file selection mode, seesetFileSelectionMode.- Parameters:
filter- theFileFilterto add to the choosable file filter list- See Also:
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removeChoosableFileFilter
Removes a filter from the list of user choosable file filters. Returns true if the file filter was removed.- Parameters:
f- the file filter to be removed- Returns:
- true if the file filter was removed, false otherwise
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resetChoosableFileFilters
public void resetChoosableFileFilters()Resets the choosable file filter list to its starting state. Normally, this removes all added file filters while leaving theAcceptAllfile filter.- See Also:
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getAcceptAllFileFilter
Returns theAcceptAllfile filter. For example, on Microsoft Windows this would be All Files (*.*).- Returns:
- the
AcceptAllfile filter
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isAcceptAllFileFilterUsed
public boolean isAcceptAllFileFilterUsed()Returns whether theAcceptAll FileFilteris used.- Returns:
- true if the
AcceptAll FileFilteris used - Since:
- 1.3
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setAcceptAllFileFilterUsed
@BeanProperty(preferred=true, description="Sets whether the AcceptAll FileFilter is used as an available choice in the choosable filter list.") public void setAcceptAllFileFilterUsed(boolean b) Determines whether theAcceptAll FileFilteris used as an available choice in the choosable filter list. If false, theAcceptAllfile filter is removed from the list of available file filters. If true, theAcceptAllfile filter will become the actively used file filter.- Parameters:
b- abooleanwhich determines whether theAcceptAllfile filter is an available choice in the choosable filter list- Since:
- 1.3
- See Also:
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getAccessory
Returns the accessory component.- Returns:
- this JFileChooser's accessory component, or null
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setAccessory
@BeanProperty(preferred=true, description="Sets the accessory component on the JFileChooser.") public void setAccessory(JComponent newAccessory) Sets the accessory component. An accessory is often used to show a preview image of the selected file; however, it can be used for anything that the programmer wishes, such as extra custom file chooser controls.Note: if there was a previous accessory, you should unregister any listeners that the accessory might have registered with the file chooser.
- Parameters:
newAccessory- the accessory component to be set
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setFileSelectionMode
@BeanProperty(preferred=true, enumerationValues={"JFileChooser.FILES_ONLY","JFileChooser.DIRECTORIES_ONLY","JFileChooser.FILES_AND_DIRECTORIES"}, description="Sets the types of files that the JFileChooser can choose.") public void setFileSelectionMode(int mode) Sets theJFileChooserto allow the user to just select files, just select directories, or select both files and directories. The default isJFilesChooser.FILES_ONLY.- Parameters:
mode- the type of files to be displayed:- JFileChooser.FILES_ONLY
- JFileChooser.DIRECTORIES_ONLY
- JFileChooser.FILES_AND_DIRECTORIES
- Throws:
IllegalArgumentException- ifmodeis an illegal file selection mode- See Also:
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getFileSelectionMode
public int getFileSelectionMode()Returns the current file-selection mode. The default isJFilesChooser.FILES_ONLY.- Returns:
- the type of files to be displayed, one of the following:
- JFileChooser.FILES_ONLY
- JFileChooser.DIRECTORIES_ONLY
- JFileChooser.FILES_AND_DIRECTORIES
- See Also:
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isFileSelectionEnabled
Convenience call that determines if files are selectable based on the current file selection mode.- Returns:
- true if files are selectable, false otherwise
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isDirectorySelectionEnabled
Convenience call that determines if directories are selectable based on the current file selection mode.- Returns:
- true if directories are selectable, false otherwise
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setMultiSelectionEnabled
@BeanProperty(description="Sets multiple file selection mode.") public void setMultiSelectionEnabled(boolean b) Sets the file chooser to allow multiple file selections.- Parameters:
b- true if multiple files may be selected- See Also:
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isMultiSelectionEnabled
public boolean isMultiSelectionEnabled()Returns true if multiple files can be selected.- Returns:
- true if multiple files can be selected
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isFileHidingEnabled
public boolean isFileHidingEnabled()Returns true if hidden files are not shown in the file chooser; otherwise, returns false. The default value of this property may be derived from the underlying Operating System.- Returns:
- the status of the file hiding property
- See Also:
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setFileHidingEnabled
@BeanProperty(preferred=true, description="Sets file hiding on or off.") public void setFileHidingEnabled(boolean b) Sets file hiding on or off. If true, hidden files are not shown in the file chooser. The job of determining which files are shown is done by theFileView.- Parameters:
b- the boolean value that determines whether file hiding is turned on- See Also:
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setFileFilter
@BeanProperty(preferred=true, description="Sets the File Filter used to filter out files of type.") public void setFileFilter(FileFilter filter) Sets the current file filter. The file filter is used by the file chooser to filter out files from the user's view.- Parameters:
filter- the new current file filter to use- See Also:
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getFileFilter
Returns the currently selected file filter.- Returns:
- the current file filter
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setFileView
@BeanProperty(preferred=true, description="Sets the File View used to get file type information.") public void setFileView(FileView fileView) Sets the file view to be used to retrieve UI information, such as the icon that represents a file or the type description of a file.- Parameters:
fileView- aFileViewto be used to retrieve UI information- See Also:
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getFileView
Returns the current file view.- Returns:
- the current file view
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getName
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getDescription
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getTypeDescription
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getIcon
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isTraversable
Returns true if the file (directory) can be visited. Returns false if the directory cannot be traversed.- Parameters:
f- theFile- Returns:
- true if the file/directory can be traversed, otherwise false
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accept
Returns true if the file should be displayed.- Parameters:
f- theFile- Returns:
- true if the file should be displayed, otherwise false
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setFileSystemView
@BeanProperty(expert=true, description="Sets the FileSystemView used to get filesystem information.") public void setFileSystemView(FileSystemView fsv) Sets the file system view that theJFileChooseruses for accessing and creating file system resources, such as finding the floppy drive and getting a list of root drives.- Parameters:
fsv- the newFileSystemView- See Also:
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getFileSystemView
Returns the file system view.- Returns:
- the
FileSystemViewobject - See Also:
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approveSelection
public void approveSelection()Called by the UI when the user hits the Approve button (labeled "Open" or "Save", by default). This can also be called by the programmer. This method causes an action event to fire with the command string equal toAPPROVE_SELECTION.- See Also:
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cancelSelection
public void cancelSelection()Called by the UI when the user chooses the Cancel button. This can also be called by the programmer. This method causes an action event to fire with the command string equal toCANCEL_SELECTION.- See Also:
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addActionListener
Adds anActionListenerto the file chooser.- Parameters:
l- the listener to be added- See Also:
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removeActionListener
Removes anActionListenerfrom the file chooser.- Parameters:
l- the listener to be removed- See Also:
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getActionListeners
Returns an array of all the action listeners registered on this file chooser.- Returns:
- all of this file chooser's
ActionListeners or an empty array if no action listeners are currently registered - Since:
- 1.4
- See Also:
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fireActionPerformed
Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created using thecommandparameter.- Parameters:
command- a string that may specify a command associated with the event- See Also:
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updateUI
public void updateUI()Resets the UI property to a value from the current look and feel.- Overrides:
updateUIin classJComponent- See Also:
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getUIClassID
@BeanProperty(bound=false, expert=true, description="A string that specifies the name of the L&F class.") public String getUIClassID()Returns a string that specifies the name of the L&F class that renders this component.- Overrides:
getUIClassIDin classJComponent- Returns:
- the string "FileChooserUI"
- See Also:
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getUI
Gets the UI object which implements the L&F for this component.- Overrides:
getUIin classJComponent- Returns:
- the FileChooserUI object that implements the FileChooserUI L&F
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paramString
Returns a string representation of thisJFileChooser. 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 benull.- Overrides:
paramStringin classJComponent- Returns:
- a string representation of this
JFileChooser
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getAccessibleContext
Gets the AccessibleContext associated with this JFileChooser. For file choosers, the AccessibleContext takes the form of an AccessibleJFileChooser. A new AccessibleJFileChooser instance is created if necessary.- Specified by:
getAccessibleContextin interfaceAccessible- Overrides:
getAccessibleContextin classComponent- Returns:
- an AccessibleJFileChooser that serves as the AccessibleContext of this JFileChooser
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setEnabled
public void setEnabled(boolean enabled) Sets whether or not this component is enabled. A component that is enabled may respond to user input, while a component that is not enabled cannot respond to user input. Some components may alter their visual representation when they are disabled in order to provide feedback to the user that they cannot take input.Note: Disabling a component does not disable its children.
Note: Disabling a lightweight component does not prevent it from receiving MouseEvents.
- Overrides:
setEnabledin classJComponent- Parameters:
enabled- true if this component should be enabled, false otherwise- See Also:
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java.awt.Component.setEnabled(boolean).