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JavaTM 2 Platform Std. Ed. v1.3 |
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java.lang.Object
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+--java.awt.Component
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+--java.awt.Container
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+--java.awt.Window
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+--java.awt.Dialog
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+--java.awt.FileDialog
The FileDialog class displays a dialog window
from which the user can select a file.
Since it is a modal dialog, when the application calls
its show method to display the dialog,
it blocks the rest of the application until the user has
chosen a file.
Window.show(), Serialized Form| Inner classes inherited from class java.awt.Dialog |
Dialog.AccessibleAWTDialog |
| Inner classes inherited from class java.awt.Window |
Window.AccessibleAWTWindow |
| Inner classes inherited from class java.awt.Container |
Container.AccessibleAWTContainer |
| Inner classes inherited from class java.awt.Component |
Component.AccessibleAWTComponent |
| Field Summary | |
static int |
LOAD
This constant value indicates that the purpose of the file dialog window is to locate a file from which to read. |
static int |
SAVE
This constant value indicates that the purpose of the file dialog window is to locate a file to which to write. |
| Fields inherited from class java.awt.Component |
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
| Fields inherited from interface java.awt.image.ImageObserver |
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
| Constructor Summary | |
FileDialog(Frame parent)
Creates a file dialog for loading a file. |
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FileDialog(Frame parent,
String title)
Creates a file dialog window with the specified title for loading a file. |
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FileDialog(Frame parent,
String title,
int mode)
Creates a file dialog window with the specified title for loading or saving a file. |
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| Method Summary | |
void |
addNotify()
Creates the file dialog's peer. |
String |
getDirectory()
Gets the directory of this file dialog. |
String |
getFile()
Gets the selected file of this file dialog. |
FilenameFilter |
getFilenameFilter()
Determines this file dialog's filename filter. |
int |
getMode()
Indicates whether this file dialog box is for loading from a file or for saving to a file. |
protected String |
paramString()
Returns the parameter string representing the state of this file dialog window. |
void |
setDirectory(String dir)
Sets the directory of this file dialog window to be the specified directory. |
void |
setFile(String file)
Sets the selected file for this file dialog window to be the specified file. |
void |
setFilenameFilter(FilenameFilter filter)
Sets the filename filter for this file dialog window to the specified filter. |
void |
setMode(int mode)
Sets the mode of the file dialog. |
| Methods inherited from class java.awt.Dialog |
dispose, getAccessibleContext, getTitle, hide, isModal, isResizable, setModal, setResizable, setTitle, show |
| Methods inherited from class java.awt.Window |
addWindowListener, applyResourceBundle, applyResourceBundle, finalize, getFocusOwner, getGraphicsConfiguration, getInputContext, getListeners, getLocale, getOwnedWindows, getOwner, getToolkit, getWarningString, isShowing, pack, postEvent, processEvent, processWindowEvent, removeWindowListener, setCursor, toBack, toFront |
| Methods inherited from class java.awt.Container |
add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFont, setLayout, update, validate, validateTree |
| Methods inherited from class java.lang.Object |
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
public static final int LOAD
public static final int SAVE
| Constructor Detail |
public FileDialog(Frame parent)
parent - the owner of the dialog
public FileDialog(Frame parent,
String title)
parent - the owner of the dialog.title - the title of the dialog.
public FileDialog(Frame parent,
String title,
int mode)
If the value of mode is LOAD, then the
file dialog is finding a file to read. If the value of
mode is SAVE, the file dialog is finding
a place to write a file.
parent - the owner of the dialog.title - the title of the dialog.mode - the mode of the dialog.LOAD,
SAVE| Method Detail |
public void addNotify()
addNotify in class Dialogjava.awt.DialogComponent.isDisplayable(),
Container.removeNotify()public int getMode()
FileDialog.LOAD or
FileDialog.SAVE.LOAD,
SAVE,
setMode(int)public void setMode(int mode)
mode - the mode for this file dialog, either
FileDialog.LOAD or
FileDialog.SAVE.IllegalArgumentException - if an illegal file
dialog mode is used.LOAD,
SAVE,
getMode()public String getDirectory()
setDirectory(java.lang.String)public void setDirectory(String dir)
null or an
invalid directory implies an implementation-defined default.
This default will not be realized, however, until the user
has selected a file. Until this point, getDirectory()
will return the value passed into this method.
Specifying "" as the directory is exactly equivalent to
specifying null as the directory.
dir - the specific directory.getDirectory()public String getFile()
null if none is selected.setFile(java.lang.String)public void setFile(String file)
Specifying "" as
the file is exactly equivalent to specifying null
as the file.
file - the file being set.getFile()public FilenameFilter getFilenameFilter()
FilenameFilter,
setFilenameFilter(java.io.FilenameFilter)public void setFilenameFilter(FilenameFilter filter)
filter - the specified filter.FilenameFilter,
getFilenameFilter()protected String paramString()
paramString in class Dialog
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JavaTM 2 Platform Std. Ed. v1.3 |
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