This makes applets well-suited for demonstration, visualization, and teaching.
There are online applet collections for studying various subjects, from physics If needed, an applet can leave the dedicated area and run as a separate window.
As applets were available before CSS and DHTML were standard, they were also widely used for trivial effects such as rollover navigation buttons. Java applets are executed in a sandbox by most web browsers, preventing them from accessing local data like the clipboard or file system.
However, applets have very little control over web page content outside the applet's dedicated area, so they are less useful for improving the site appearance in general, unlike other types of browser extensions (while applets like news tickers Pages coded in HTML may embed parameters within them that are passed to the applet.
Because of this, the same applet may have a different appearance depending on the parameters that were passed.
The first implementations involved downloading an applet class by class.
While classes are small files, there are often many of them, so applets got a reputation as slow-loading components.
The Java browser plug-in relies on NPAPI, which many web browser vendors are deprecating due to its age and security issues.
In January 2016, Oracle announced that Java runtime environments based on JDK 9 will discontinue the browser plug-in.
In the case of this example, if all necessary classes are placed in the compressed archive example.jar, the following embedding code could be used instead: Sun has made considerable efforts to ensure compatibility is maintained between Java versions as they evolve, enforcing Java portability by law if required. The 1997 lawsuit, into the classes within the java.awt, java.lang, and packages.
Other modifications included removal of RMI capability and replacement of Java native interface from JNI to RNI, a different standard.
Many Java developers, blogs and magazines are recommending that the Java Web Start technology be used in place of applets.
Java Web Start allows the launching of unmodified applet code, which then runs in a separate window (not inside the invoking browser).
This domain can be different from the domain where the surrounding HTML document is hosted.