- java.lang.Object
-
- java.awt.Component
-
- java.awt.Container
-
- java.awt.Panel
-
- java.applet.Applet
-
- All Implemented Interfaces:
ImageObserver,MenuContainer,Serializable,Accessible
- Direct Known Subclasses:
JApplet
@Deprecated(since="9") public class Applet extends Panel
Deprecated.The Applet API is deprecated, no replacement.An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.The
Appletclass must be the superclass of any applet that is to be embedded in a Web page or viewed by the Java Applet Viewer. TheAppletclass provides a standard interface between applets and their environment.- Since:
- 1.0
- See Also:
- Serialized Form
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description protected classApplet.AccessibleAppletDeprecated.This class implements accessibility support for theAppletclass.-
Nested classes/interfaces declared in class java.awt.Panel
Panel.AccessibleAWTPanel
-
Nested classes/interfaces declared in class java.awt.Container
Container.AccessibleAWTContainer
-
Nested classes/interfaces declared in class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
-
-
Field Summary
-
Fields declared in class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
-
Fields declared in interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
-
-
Constructor Summary
Constructors Constructor Description Applet()Deprecated.Constructs a new Applet.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description voiddestroy()Deprecated.Called by the browser or applet viewer to inform this applet that it is being reclaimed and that it should destroy any resources that it has allocated.AccessibleContextgetAccessibleContext()Deprecated.Gets the AccessibleContext associated with this Applet.AppletContextgetAppletContext()Deprecated.Determines this applet's context, which allows the applet to query and affect the environment in which it runs.StringgetAppletInfo()Deprecated.Returns information about this applet.AudioClipgetAudioClip(URL url)Deprecated.Returns theAudioClipobject specified by theURLargument.AudioClipgetAudioClip(URL url, String name)Deprecated.Returns theAudioClipobject specified by theURLandnamearguments.URLgetCodeBase()Deprecated.Gets the base URL.URLgetDocumentBase()Deprecated.Gets the URL of the document in which this applet is embedded.ImagegetImage(URL url)Deprecated.Returns anImageobject that can then be painted on the screen.ImagegetImage(URL url, String name)Deprecated.Returns anImageobject that can then be painted on the screen.LocalegetLocale()Deprecated.Gets the locale of the applet.StringgetParameter(String name)Deprecated.Returns the value of the named parameter in the HTML tag.String[][]getParameterInfo()Deprecated.Returns information about the parameters that are understood by this applet.voidinit()Deprecated.Called by the browser or applet viewer to inform this applet that it has been loaded into the system.booleanisActive()Deprecated.Determines if this applet is active.booleanisValidateRoot()Deprecated.Indicates if this container is a validate root.static AudioClipnewAudioClip(URL url)Deprecated.Get an audio clip from the given URL.voidplay(URL url)Deprecated.Plays the audio clip at the specified absolute URL.voidplay(URL url, String name)Deprecated.Plays the audio clip given the URL and a specifier that is relative to it.voidresize(int width, int height)Deprecated.Requests that this applet be resized.voidresize(Dimension d)Deprecated.Requests that this applet be resized.voidsetStub(AppletStub stub)Deprecated.Sets this applet's stub.voidshowStatus(String msg)Deprecated.Requests that the argument string be displayed in the "status window".voidstart()Deprecated.Called by the browser or applet viewer to inform this applet that it should start its execution.voidstop()Deprecated.Called by the browser or applet viewer to inform this applet that it should stop its execution.-
Methods declared in class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, setLayout, transferFocusDownCycle, update, validate, validateTree
-
Methods declared in class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, reshape, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setMixingCutoutShape, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
-
-
-
-
Constructor Detail
-
Applet
public Applet() throws HeadlessExceptionDeprecated.Constructs a new Applet.Note: Many methods in
java.applet.Appletmay be invoked by the applet only after the applet is fully constructed; applet should avoid calling methods injava.applet.Appletin the constructor.- Throws:
HeadlessException- if GraphicsEnvironment.isHeadless() returns true.- Since:
- 1.4
- See Also:
GraphicsEnvironment.isHeadless()
-
-
Method Detail
-
setStub
public final void setStub(AppletStub stub)
Deprecated.Sets this applet's stub. This is done automatically by the system.If there is a security manager, its
checkPermissionmethod is called with theAWTPermission("setAppletStub")permission if a stub has already been set.- Parameters:
stub- the new stub.- Throws:
SecurityException- if the caller cannot set the stub
-
isActive
public boolean isActive()
Deprecated.Determines if this applet is active. An applet is marked active just before itsstartmethod is called. It becomes inactive just before itsstopmethod is called.
-
getDocumentBase
public URL getDocumentBase()
Deprecated.Gets the URL of the document in which this applet is embedded. For example, suppose an applet is contained within the document:
The document base is:http://www.oracle.com/technetwork/java/index.htmlhttp://www.oracle.com/technetwork/java/index.html- Returns:
- the
URLof the document that contains this applet. - See Also:
getCodeBase()
-
getCodeBase
public URL getCodeBase()
Deprecated.Gets the base URL. This is the URL of the directory which contains this applet.- Returns:
- the base
URLof the directory which contains this applet. - See Also:
getDocumentBase()
-
getParameter
public String getParameter(String name)
Deprecated.Returns the value of the named parameter in the HTML tag. For example, if this applet is specified as<applet code="Clock" width=50 height=50> <param name=Color value="blue"> </applet>
then a call to
getParameter("Color")returns the value"blue".The
nameargument is case insensitive.- Parameters:
name- a parameter name.- Returns:
- the value of the named parameter,
or
nullif not set.
-
getAppletContext
public AppletContext getAppletContext()
Deprecated.Determines this applet's context, which allows the applet to query and affect the environment in which it runs.This environment of an applet represents the document that contains the applet.
- Returns:
- the applet's context.
-
resize
public void resize(int width, int height)Deprecated.Requests that this applet be resized.
-
resize
public void resize(Dimension d)
Deprecated.Requests that this applet be resized.
-
isValidateRoot
public boolean isValidateRoot()
Deprecated.Indicates if this container is a validate root.Appletobjects are the validate roots, and, therefore, they override this method to returntrue.- Overrides:
isValidateRootin classContainer- Returns:
true- Since:
- 1.7
- See Also:
Container.isValidateRoot()
-
showStatus
public void showStatus(String msg)
Deprecated.Requests that the argument string be displayed in the "status window". Many browsers and applet viewers provide such a window, where the application can inform users of its current state.- Parameters:
msg- a string to display in the status window.
-
getImage
public Image getImage(URL url)
Deprecated.Returns anImageobject that can then be painted on the screen. Theurlthat is passed as an argument must specify an absolute URL.This method always returns immediately, whether or not the image exists. When this applet attempts to draw the image on the screen, the data will be loaded. The graphics primitives that draw the image will incrementally paint on the screen.
- Parameters:
url- an absolute URL giving the location of the image.- Returns:
- the image at the specified URL.
- See Also:
Image
-
getImage
public Image getImage(URL url, String name)
Deprecated.Returns anImageobject that can then be painted on the screen. Theurlargument must specify an absolute URL. Thenameargument is a specifier that is relative to theurlargument.This method always returns immediately, whether or not the image exists. When this applet attempts to draw the image on the screen, the data will be loaded. The graphics primitives that draw the image will incrementally paint on the screen.
- Parameters:
url- an absolute URL giving the base location of the image.name- the location of the image, relative to theurlargument.- Returns:
- the image at the specified URL.
- See Also:
Image
-
newAudioClip
public static final AudioClip newAudioClip(URL url)
Deprecated.Get an audio clip from the given URL.- Parameters:
url- points to the audio clip- Returns:
- the audio clip at the specified URL.
- Since:
- 1.2
-
getAudioClip
public AudioClip getAudioClip(URL url)
Deprecated.Returns theAudioClipobject specified by theURLargument.This method always returns immediately, whether or not the audio clip exists. When this applet attempts to play the audio clip, the data will be loaded.
- Parameters:
url- an absolute URL giving the location of the audio clip.- Returns:
- the audio clip at the specified URL.
- See Also:
AudioClip
-
getAudioClip
public AudioClip getAudioClip(URL url, String name)
Deprecated.Returns theAudioClipobject specified by theURLandnamearguments.This method always returns immediately, whether or not the audio clip exists. When this applet attempts to play the audio clip, the data will be loaded.
- Parameters:
url- an absolute URL giving the base location of the audio clip.name- the location of the audio clip, relative to theurlargument.- Returns:
- the audio clip at the specified URL.
- See Also:
AudioClip
-
getAppletInfo
public String getAppletInfo()
Deprecated.Returns information about this applet. An applet should override this method to return aStringcontaining information about the author, version, and copyright of the applet.The implementation of this method provided by the
Appletclass returnsnull.- Returns:
- a string containing information about the author, version, and copyright of the applet.
-
getLocale
public Locale getLocale()
Deprecated.Gets the locale of the applet. It allows the applet to maintain its own locale separated from the locale of the browser or appletviewer.- Overrides:
getLocalein classComponent- Returns:
- the locale of the applet; if no locale has been set, the default locale is returned.
- Since:
- 1.1
- See Also:
Component.setLocale(java.util.Locale)
-
getParameterInfo
public String[][] getParameterInfo()
Deprecated.Returns information about the parameters that are understood by this applet. An applet should override this method to return an array ofStringsdescribing these parameters.Each element of the array should be a set of three
Stringscontaining the name, the type, and a description. For example:String pinfo[][] = { {"fps", "1-10", "frames per second"}, {"repeat", "boolean", "repeat image loop"}, {"imgs", "url", "images directory"} };The implementation of this method provided by the
Appletclass returnsnull.- Returns:
- an array describing the parameters this applet looks for.
-
play
public void play(URL url)
Deprecated.Plays the audio clip at the specified absolute URL. Nothing happens if the audio clip cannot be found.- Parameters:
url- an absolute URL giving the location of the audio clip.
-
play
public void play(URL url, String name)
Deprecated.Plays the audio clip given the URL and a specifier that is relative to it. Nothing happens if the audio clip cannot be found.- Parameters:
url- an absolute URL giving the base location of the audio clip.name- the location of the audio clip, relative to theurlargument.
-
init
public void init()
Deprecated.Called by the browser or applet viewer to inform this applet that it has been loaded into the system. It is always called before the first time that thestartmethod is called.A subclass of
Appletshould override this method if it has initialization to perform. For example, an applet with threads would use theinitmethod to create the threads and thedestroymethod to kill them.The implementation of this method provided by the
Appletclass does nothing.
-
start
public void start()
Deprecated.Called by the browser or applet viewer to inform this applet that it should start its execution. It is called after theinitmethod and each time the applet is revisited in a Web page.A subclass of
Appletshould override this method if it has any operation that it wants to perform each time the Web page containing it is visited. For example, an applet with animation might want to use thestartmethod to resume animation, and thestopmethod to suspend the animation.Note: some methods, such as
getLocationOnScreen, can only provide meaningful results if the applet is showing. BecauseisShowingreturnsfalsewhen the applet'sstartis first called, methods requiringisShowingto returntrueshould be called from aComponentListener.The implementation of this method provided by the
Appletclass does nothing.
-
stop
public void stop()
Deprecated.Called by the browser or applet viewer to inform this applet that it should stop its execution. It is called when the Web page that contains this applet has been replaced by another page, and also just before the applet is to be destroyed.A subclass of
Appletshould override this method if it has any operation that it wants to perform each time the Web page containing it is no longer visible. For example, an applet with animation might want to use thestartmethod to resume animation, and thestopmethod to suspend the animation.The implementation of this method provided by the
Appletclass does nothing.
-
destroy
public void destroy()
Deprecated.Called by the browser or applet viewer to inform this applet that it is being reclaimed and that it should destroy any resources that it has allocated. Thestopmethod will always be called beforedestroy.A subclass of
Appletshould override this method if it has any operation that it wants to perform before it is destroyed. For example, an applet with threads would use theinitmethod to create the threads and thedestroymethod to kill them.The implementation of this method provided by the
Appletclass does nothing.
-
getAccessibleContext
public AccessibleContext getAccessibleContext()
Deprecated.Gets the AccessibleContext associated with this Applet. For applets, the AccessibleContext takes the form of an AccessibleApplet. A new AccessibleApplet instance is created if necessary.- Specified by:
getAccessibleContextin interfaceAccessible- Overrides:
getAccessibleContextin classPanel- Returns:
- an AccessibleApplet that serves as the AccessibleContext of this Applet
- Since:
- 1.3
-
-