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Trail: Deployment
Lesson: Applets
Section: Deploying Applets
Applets
Getting Started with Applets
Importing Classes and Packages for Applets
Defining an Applet Subclass
The Life Cycle of an Applet
Methods for Milestones
Methods for Drawing and Event Handling
Methods for Adding UI Components
What Applets Can and Can't Do
Taking Advantage of the Applet API
Finding and Loading Data Files
Displaying Short Status Strings
Displaying Documents in the Browser
Sending Messages to Other Applets
Playing Sounds
Defining and Using Applet Parameters
Deciding Which Parameters to Support
Writing the Code to Support Parameters
Giving Information about Parameters
Using the APPLET Tag
Practical Considerations When Writing Applets
Security Restrictions
Creating a User Interface
Creating a GUI
Displaying Diagnostics to the Standard Output and Error Streams
Getting System Properties
Threads in Applets
Threads in Applets: Examples
Working with a Server-Side Application
A Simple Network Client Applet
Using a Server to Work Around Security Restrictions
Finishing an Applet
Before You Ship that Applet
The Perfectly Finished Applet
Deploying Applets
General Deployment Considerations
Using the applet Tag
Using the object Tag
Using the embed Tag
Deploying Applets in a Mixed-Browser Environment
Solving Common Applet Problems
Questions and Exercises
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Using the applet Tag

> You use the `applet` tag to deploy applets to a multi-browser environment.

> For complete details on the `applet` tag, read the W3 HTML specification.

> > Note: The HTML specification states that the `applet` tag is deprecated, and that you should use the `object` tag instead. However, the specification is vague about how browsers should implement the `object` tag to support Java applets, and browser support is currently inconsistent. It is therefore recommended that you continue to use the `applet` tag as a consistent way to deploy Java applets across browsers on all platforms.

> Following is an example of the applet tag:

> >         <applet code=Applet1.class width="200" height="200">
> >         Your browser does not support the applet tag.
> >         </applet>

> For both Internet Explorer and the Mozilla family of browsers, if Java Plug-in is installed (version 1.3.1_01a or later) then the latest installed version of Java Plug-in is invoked to run the applet.

> > Note: You cannot use the `applet` tag to automatically download a JRE if one is not installed locally.

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