JAVA APPLETS
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Java applets are small, interactive programs embedded in webpages that run on the client side to create dynamic content. They offer advantages such as cross-platform compatibility and security, but require a Java plug-in and may not work on all browsers. The document also discusses the applet life cycle and provides a simple programming example.
JAVA APPLETS
- 2. CONTENT 2 ▰ Introduction ▰ Why we use ▰ Applet Life-Cycle ▰ Advantage & Dis-Advantage of Applets
- 3. Applet 3 1
- 4. “Applet is a special type of program that is embedded in the webpage to generate the dynamic content. 44
- 5. Continued.. ▰ It runs inside the browser and works at client side. ▰ Applets in Java are small and dynamic internet-based programs. ▰ Plug-in is required at client browser to execute applet. ▰ It works at client side so less response time. ▰ A Java Applet can be only executed within the applet framework of Java. 5
- 6. Why we use Applets ▰ Java Applets are usually used to add small, interactive components or enhancements to a webpage. These may consist of buttons, scrolling text, or stock tickers, but they can also be used to display larger programs like word processors or games. 6
- 8. MAPS 8
- 9. Example 9 import java.applet.Applet; import java.awt.Graphics; public class HelloWorld extends Applet { public void paint(Graphics g) { g.drawString("Hello World!", 50, 25); } } <html> <head> <TITLE> A Simple Program</TITLE> </head> <body> Here is the output of my program: <applet code="HelloWorld.class" width="150" height="25"></applet> </body> </html>
- 10. Advantages & Disadvantages Advantage ▰ It is simple to make it work on Linux, Windows and Mac OS i.e. cross platform. ▰ The same Applet can work on all installed versions of JAVA at the same time. ▰ It can move the work from server to the client. ▰ Secured:- An un-trusted applet has no access to the local machine and can only access the server it came from. ▰ Java applets are fast. Disadvantage ▰ It requires the java plug-in. ▰ Some browsers, notably mobile browsers like Apple iOS or Android do not run the java applets at all. ▰ Some applets require a specific JRE. 10
- 11. References : ▰ https://www.sitesbay.com/java/java-applet ▰ https://www.tutorialspoint.com/java/java/applet/basics.html 11
- 12. Thanks! You have any questions..? [email protected] 12