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What is an applet ?

+3 votes
What is an applet ?
posted Dec 29, 2014 by Harshita

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2 Answers

+1 vote

It is a dynamic and interactive program that runs inside a web page displayed by a java capable browser. It is actually java byte code embedded in html page, generally for achieving communication with the user.

The applet when requested from the server, gets loaded in the browser and runs in a sand boxed environment. It does not have access to any other things which exists outside of the sand box. Java applets are not much in use now since it is too heavyweight and thus have performance bottleneck.
U can find usage of them in:

JPC Emulator: It is an x86 emulator written in Java and uses Java Applets.
Statistics: Usage of Applets in developing Web Applications in Statistics is not yet obsolete.
Education: Still studied in universities as part of course-curriculum.
Yahoo Games: Uses Java Applets for games.
Small Applications: Good platform to develop Small Applications
Client Machine: When client machine is to be used the Applets can be considered a good choice i.e. in creating authentication app etc
Android: Billions of Android devices is running them on Java Virtual Machine.

Below is an image showing the life cycle of an applet.
enter image description here

answer Dec 29, 2014 by Prakash
+1 vote

A Java applet is a small application which is written in Java and delivered to users in the form of bytecode . The user launches the Java applet from a web page, and the applet is then executed within a Java Virtual Machine (JVM) in a process separate from the web browser itself.

An applet is a small Internet-based program written in Java, a programming language for the Web, which can be downloaded by any computer. The applet is also able to run in HTML. The applet is usually embedded in an HTML page on a Web site and can be executed from within a browser.

answer Dec 29, 2014 by Karthick.c