Applet: A Java applet is a small program usually coded in Java language and produces the bytecode. It is embed into an HTML document. The coded program (applet) is moved over the web. Then the applet is executed to view the web page in the Java compatible web browser. The web browser uses JVM (Java Virtual Machine) to execute the java applet code. The Java applet supported for various platforms such as Microsoft Windows, UNIX and Linux, and so on. The Java applet is simple and mostly supported by all web browsers. The tag <APPLET> is used to embed a java applet program into an HTML document. Graphical user Interface (GUI): A GUI denotes a graphical window or a system of graphical windows. It is presented by an application for user interaction purposes. It accepts input from the keyboard. It also accepts input from mouse or a touch screen. The GUI components include “Buttons”, “Labels”, “TextFields”, “CheckBoxes” and “RadioButtons”. The programs that operate in a GUI based environment must be event-driven. An “event” denotes an action that would take place within a program. The creation of event listeners is a part of GUI application. An event listener denotes a method that executes automatically when a specific event occurs. An event listener may respond to an event that occurs within an operation.

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Chapter 14, Problem 4SA

Program Plan Intro

Applet:

A Java applet is a small program usually coded in Java language and produces the bytecode. It is embed into an HTML document.

The coded program (applet) is moved over the web.

Then the applet is executed to view the web page in the Java compatible web browser.

The web browser uses JVM (Java Virtual Machine) to execute the java applet code.

The Java applet supported for various platforms such as Microsoft Windows, UNIX and Linux, and so on.

The Java applet is simple and mostly supported by all web browsers.

The tag <APPLET> is used to embed a java applet program into an HTML document.

Graphical user Interface (GUI):

A GUI denotes a graphical window or a system of graphical windows.

It is presented by an application for user interaction purposes.

It accepts input from the keyboard.

It also accepts input from mouse or a touch screen.

The GUI components include “Buttons”, “Labels”, “TextFields”, “CheckBoxes” and “RadioButtons”.

The programs that operate in a GUI based environment must be event-driven.

An “event” denotes an action that would take place within a program.

The creation of event listeners is a part of GUI application.

An event listener denotes a method that executes automatically when a specific event occurs.

An event listener may respond to an event that occurs within an operation.

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