Contents - Cultural View

Java applet 34
element. [19] A non standard embed element can be used [20] with
Mozilla family browsers. This specifies the applet's source and
location. Object and embed tags can also download and install Java
virtual machine (if required) or at least lead to the plugin page. Applet
and object tags also support loading of the serialized applets that start
in some particular (rather than initial) state. Tags also specify the
message that shows up in place of the applet if the browser cannot run
it due any reason.
However, despite object being officially a recommended tag, as of
2010, the support of the object tag was not yet consistent among
browsers and Sun kept recommending the older applet tag for
deploying in multibrowser environments, [20] as it remained the only
tag consistently supported by the most popular browsers. To support
multiple browsers, the object tag currently requires JavaScript (that
recognizes the browser and adjusts the tag), usage of additional
browser-specific tags or delivering adapted output from the server side.
Deprecating applet tag has been criticised. [21] Oracle now provides a
maintained JavaScript code [22] to launch applets with cross platform
workarounds.
Simple examples
A basic example using the java.applet package
The following example is made simple enough to illustrate the
essential use of Java applets through its java.applet package. It also
uses classes from the Java Abstract Window Toolkit (AWT) for
producing actual output (in this case, the "Hello, world!" message).
import java.applet.Applet;
import java.awt.*;
// Applet code for the "Hello, world!" example.
// This should be saved in a file named as "HelloWorld.java".
public class HelloWorld extends Applet {
Sufficient running speed is also utilized in applets
for playing non trivial computer games like
chess [5]
NASA World Wind (open source) is a second
generation applet [6] that makes heavy use of
OpenGL and on-demand data downloading to
provide a detailed 3D map of the world.
// This method is mandatory, but can be empty (i.e., have no actual
Web access to the server console at the hardware
code).
level with the help of a Java applet
public void init() { }
// This method is mandatory, but can be empty.
public void stop() { }
// Print a message on the screen (x=20, y=10).
public void paint(Graphics g) {