An applet is a software component that runs in the context of another program, for example a web browser A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to. An applet usually performs a very narrow function that has no independent use. Hence, it is an application -let In language structure, a diminutive, or diminutive form, is a formation of a word used to convey a slight degree of the root meaning, smallness of the object or quality named, encapsulation, intimacy, or endearment. It is the opposite of an augmentative.
The word applet could alternatively be used to describe a small standalone application, such as those typically bundled with operating systems, for example a calculator program or text editor Text editors are often provided with operating systems or software development packages, and can be used to change configuration files and programming language source code.
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Applets and routines
An applet is distinguished from "subroutine" by several features:
- First, it executes only on the "client" platform environment of a system, as contrasted from "servlet Servlets are Java programming language objects that dynamically process requests and construct responses. The Java Servlet API allows a software developer to add dynamic content to a Web server using the Java platform. The generated content is commonly HTML, but may be other data such as XML. Servlets are the Java counterpart to non-Java dynamic". As such, an applet provides functionality or performance beyond the default capabilities of its container (the browser).
- Also, in contrast with a subroutine, certain capabilities are restricted by the container.
- An applet is written in a language that is different from the scripting or HTML HTML, an initialism for Hypertext Mark-up Language, is the predominant markup language for web pages. It provides a means to describe the structure of text-based information in a document—by denoting certain text as links, headings, paragraphs, lists, etc.—and to supplement that text with interactive forms, embedded images, and other objects language which invokes it. The applet is written in a compiled language, while the scripting language of the container is an interpreted language, hence the greater performance or functionality of the applet. Unlike a "subroutine", a complete web component can be implemented as an applet.
Applets and programs
Unlike a program Computer programs are instructions for a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. Computer programs are found either in executable form or as the source code from which executable programs are derived (e.g., compiled): in addition to running in a computer, the source, an applet cannot run independently; an applet features display and graphics and often interacts with the human user. However, they are usually stateless and have restricted security privileges. The applet must run in a container In computer science, a container is a class, a data structure, or an abstract data type whose instances are collections of other objects. They are used to store objects in an organized way following specific access rules, which is provided by a host program, through a plugin In computing, a plug-in consists of a computer program that interacts with a host application (a web browser or an email client, for example) to provide a certain, usually very specific, function "on demand". Applications support plugins for many reasons. Some of the main reasons include:, or a variety of other applications including mobile devices that support the applet programming model.
Examples
Examples of applets are Java applets A Java applet is an applet delivered to the users in the form of Java bytecode. Java applets can run in a Web browser using a Java Virtual Machine , or in Sun's AppletViewer, a stand-alone tool for testing applets. Java applets were introduced in the first version of the Java language in 1995. Java applets are usually written in the Java, QuickTime movies QuickTime is a multimedia framework developed by Apple Inc., capable of handling various formats of digital video, media clips, sound, text, animation, music, and interactive panoramic images. It is available for Mac OS , Mac OS X and Microsoft Windows operating systems. The latest version is 7.6 Flash movies The file format SWF a partially open repository for multimedia and especially for vector graphics, originated with FutureWave Software and has come under the control of Adobe. Intended to be small enough for publication on the web, SWF files can contain animations or applets of varying degrees of interactivity and function. Another example is the Windows Media Player Windows Media Player is a digital media player and media library application developed by Microsoft that is used for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system, as well as on Pocket PC and Windows Mobile-based devices. Editions of Windows Media Player were also released for Mac OS, applet that is used to display embedded video files in Internet Explorer Windows Internet Explorer , is a series of graphical web browsers developed by Microsoft and included as part of the Microsoft Windows line of operating systems starting in 1995. It has been the most widely used web browser since 1999, attaining a peak of about 95% usage share during 2002 and 2003 with IE5 and IE6. That percentage share has since (and other browsers A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier and may be a web page, image, video, or other piece of content. Hyperlinks present in resources enable users to easily navigate their browsers to that support the plugin). Some plugins also allow for displaying various 3D model formats in a web browser, via an applet that allows the view of the model to be rotated and zoomed. Many browser games A browser game is a video game that is played on a web browser. It is distinct from other video and computer games in that it typically doesn't require any client-side software to be installed, apart from the web browser. There are games that rely solely on client-side technologies such as JavaScript or common plugins such as Java or Flash Player, are applet-based, though some may develop into fully functional applications that require installation.
See also
- Bookmarklet A bookmarklet is an applet, a small computer application, stored as the URL of a bookmark in a web browser or as a hyperlink on a web page. The term is a portmanteau of the terms bookmark and applet. Whether bookmarklet utilities are stored as bookmarks or hyperlinks, they are designed to add one-click functionality to a browser or web page. When
- Java applet A Java applet is an applet delivered to the users in the form of Java bytecode. Java applets can run in a Web browser using a Java Virtual Machine , or in Sun's AppletViewer, a stand-alone tool for testing applets. Java applets were introduced in the first version of the Java language in 1995. Java applets are usually written in the Java
- Widget engine In computer software, a widget engine is a software service available to users for running and displaying applets on a graphical user interface, such as that of the desktop
References
Categories: Technology neologisms | Software components
Gizmodo Australia
So here's how this works: the Active X applet hijacks your webcam and uses face/eye detection to figure out where to plaster Prime's face. ...
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Step 1 Install folders 1 We create if not yet a folder called nmr applet in our hard disk c 2 In the nmr applet folder we create another folder called MQMASPowder
