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 Applet class must be the superclass of any
applet that is to be embedded in a Web page or viewed by the Java
Applet Viewer. The Applet class provides a standard
interface between applets and their environment.
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.
Determines if this applet is active. An applet is marked active
just before its start method is called. It becomes
inactive immediately after its stop method is called.
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.
Returns an Image object that can then be painted on
the screen. The url that 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 an Image object that can then be painted on
the screen. The url argument must specify an absolute
URL. The name argument is a specifier that is
relative to the url argument.
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 the
url argument.
Returns the AudioClip object specified by the
URL argument.
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 AudioClip object specified by the
URL and name arguments.
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 the
url argument.
Returns information about this applet. An applet should override
this method to return a String containing information
about the author, version, and copyright of the applet.
The implementation of this method provided by the
Applet class returns null.
Returns:
a string containing information about the author, version, and
copyright of the applet.
Returns information about the parameters than are understood by
this applet. An applet should override this method to return an
array of Strings describing these parameters.
Each element of the array should be a set of three
Strings containing the name, the type, and a
description. For example:
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 the start method is
called.
A subclass of Applet should override this method if
it has initialization to perform. For example, an applet with
threads would use the init method to create the
threads and the destroy method to kill them.
The implementation of this method provided by the
Applet class does nothing.
Called by the browser or applet viewer to inform
this applet that it should start its execution. It is called after
the init method and each time the applet is revisited
in a Web page.
A subclass of Applet should 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 the start method to
resume animation, and the stop method to suspend the
animation.
The implementation of this method provided by the
Applet class does nothing.
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 Applet should 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 the start method to
resume animation, and the stop method to suspend the
animation.
The implementation of this method provided by the
Applet class does nothing.
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. The stop method
will always be called before destroy.
A subclass of Applet should 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 the
init method to create the threads and the
destroy method to kill them.
The implementation of this method provided by the
Applet class does nothing.
Submit a bug or feature - Version 1.1.8 of Java Platform API Specification
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