Richard Kasperowski

This article is the second in a two-part series devoted to developing a connected MIDlet. In the first part of the series, we designed and built a functional application that collected a string from the user, established a connection to a remote server, sent and received data along that connection, and then presented the result to the user. In this article, we'll refine the design of the application, add a few features that are essential to any connected MIDlet, and implement exception handling. This article assumes you have read "Building a Connected MIDlet, Part 1" (JDJ, Vol. 8, issue 12) and installed our Echo application. In case you need them, the servlet .ear file and the rest of the code are still available for download at www.altisimo.com/download/echo.ear and www.altisimo.com/download/echo-1.0.zip. By the end of this article, you'll have learned how to: Bre... (more)

Building a Connected Midlet

One of the most powerful aspects of J2ME is connected mobility: you're no longer tied to your desk to accomplish many vital tasks. You can carry everything you need in your shirt pocket, send an e-mail while standing in line at the grocery store, or check the latest stock figures while at a baseball game. There is nothing new about distributed applications; people have been using them for years and their effectiveness and potential are widely accepted. This is where J2ME comes into the picture - providing mobile devices with a powerful means of running robust connected applicati... (more)

The Power of J2ME: Your Enterprise at Your Fingertips

J2ME, a leading platform in the mobile application market, provides more than 150 million cell phone users a powerful new level of connectivity. Currently, there are 200 J2ME-enabled handset models available from 70 manufacturers, and users perform more than 10 million downloads every month. It is projected that J2ME-enabled handsets will completely dominate the market by 2006, with more than 1 billion in use worldwide. However, a J2ME-enabled device has its limitations, namely available memory and processor power. An application must combine local and remote data processing to d... (more)