A Java applet is a small software program written in the Java language, a programming language used primarily on the World Wide Web. A Java applet is a separate file referenced by an HTML document. A Java applet might be used to add animation, music, database operations, or Web page updates to a Web page. If you are a developer, you can edit Java applet code from Office.
When you open a Web page that contains a Java applet in an Office program, an icon representing the applet appears on the page. The icon does not appear when you view the Web page in a browser or when you print your Web
page.
Tip
Be careful when copying and moving Java applets. Although some Java applets are self-contained and work correctly in any location on any page, other Java applets are dependent on the structure of the Web page. When copied or moved to another Web page — or to another location within a Web page — these Java applets might not run correctly or might return errors when viewed in a browser.