Applet is java program that can be embedded into HTML pages. Java applets runs on the java enables web browsers such as mozila and internet explorer. Applet is designed to run remotely on the client browser, so there are some restrictions on it. Applet can't access system resources on the local computer. Applets are used to make the web site more dynamic and entertaining.
applet is a java program that runs on the client machine. It can be used in html pages much like your images. A applet may or may not contain a main() program. It is designed to perform one specific task. Applets will not be able to access your data in your system.