Thursday Jan 10, 2008

Quiz: How MSA-Savvy Are You?

Test your MSA knowledge by taking this quiz, put together by SDN staff writer Richard Marejka.[Read More]

Tuesday Dec 11, 2007

Mobile Java and Sprint

Sprint/Nextel has a strong history of Java ME-based innovation in mobile technology. The new Sprint Wireless Toolkit 3.2 with MSA support is available from Sprint as of today.

[Read More]

Thursday Dec 06, 2007

Ultra-low Bandwidth Communication with Java ME

Bruce Hopkins explores how to use Java ME and Sun SPOT technology to create a low-bandwidth wireless system to read sensor data. He provides two fully functioning applications: the first one is the base station application, which will receive data from the second application, the free roaming wireless Sun SPOT.[Read More]

Friday Nov 30, 2007

Java ME Technology Overview

C. Enrique Ortiz walks you through the world of mobile Java technology, including configurations, profiles, and Java Technologies for handsets, smart cards, and embedded devices.

[Read More]

Wednesday Nov 14, 2007

Using MIDP in the Java ME Games API

Apress book on creating games using the Java ME platform nicely explains development (the geeky side) and distribution (the business side).

[Read More]

Activing Alerts in MIDP 2.0

Eric Giguere explains how to create progress-indicator gauges or activation alerts in Java applications running MIDP.[Read More]

How to Encrypt Data in Java ME Applications Using the SATSA API

This tip from Bruce Hopkins includes a complete working example that runs on the Sun Wireless Toolkit for CLDC and SATSA-enabled (Security and Trust Services API) mobile devices. [Read More]

Thursday Oct 18, 2007

MIDP Provisioning With Servlets

In this tech tip, Eric Giguere shows how to write a simple servlet that automatically selects the right version of your application and delivers it through the magic of over-the-air (OTA) provisioning.[Read More]

Monday Oct 08, 2007

Externalizing Resources - Persisting Images in RMS

In this tech tip, C. Enrique Ortiz describes how to save bandwidth by implementing a local cache -- using an RMS (Record Management System) -- for images. This also reduces MIDlet download size.[Read More]

Obfuscating Your MIDlet Suite

This tech tip from C. Enrique Ortiz illustrates obfuscation tools to reduce MIDlet suite size to save Over-the-Air (OTA) size and time. It includes examples with both Sun Java Wireless Toolkit and Ant scripts.[Read More]

Ajax-like Asynchronous SOA Calls with Java ME

Eric Giguere explains why the Java ME platform lends itself quite readily to accessing external resources using a service-oriented architecture (SOA) -- inclulding that many Java ME applications are built using an Ajax-like model, except of course with Java used in place of JavaScript.[Read More]

Accessing a Resource over HTTP

This technical tip from C. Enrique Ortiz introduces a Java helper class, NetworkUtils, that defines a number of HTTP constants and a helper method that uses an HttpConnection to connect to a server over HTTP, get a resource, and return it as a DataInputStream.[Read More]
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Tips for developers who use Java technologies (Java SE, Java ME, JavaFX) for mobile and embedded devices.

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