What is it - Java Applet!?
Description
Java applet is a short application (program) which is written using the Java programming language. Any Java applet can be included in an HTML page, much in the same way an image is included, using <applet> tag.
Java applets are the only safety way to add application (program) on your Web pages. They have built-in security measures that prevent them from writing (reading) at the client's machine. Java applets cannot access resources other than where the applet was originally loaded from. These restrictions are build-in the web browsers ans there is no way to pass them.
When you use a Java enabled browser, such as Microsoft Internet Explorer, Netscape Navigator, Hot Java or Opera to view a page that contains an applet, the applet's code is transferred to your system and executed by the browser's Java Virtual Machine (JVM).
More info
Java is an object-oriented programming language created by Sun Microsystems, Inc. in 1994. Learn more at: www.java.sun.com
Java applets are frequently used to add multimedia effects and interactivity to Web pages, such as video displays, animations, calculators, real-time clocks, and interactive games. Applets can be activated automatically when the page containing them is displayed in a Web browser, or they may require some action on the part of the site visitor, such as clicking an element on the page.