Introducing Applets and the Advanced Graphics and User Interface


High-end devices based on the CDC are, in many ways, very close in features to true computers. Many have always-on access to the Internet or to other networks with gateways to the Internet; some may even have built-in web browsers. To reflect these capabilities, the PP defined in JSRs 62 and 216 defines support for applets and provides backward compatibility with the Xlet application model you saw in the last chapter. The applet model defined by the PP is identical to the classic applet model that’s been with Java since the beginning; PP devices can execute applets in either an embedded web browser or in a native execution environment that provides the same facilities. Moreover, the PP requires the presence of the Java AWT, making it easy to create complex user interfaces.


User Interface Heavyweight Component Input Constraint Public Class Public Void 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Ray Rischpater 2008

Personalised recommendations