By Sing Li
J2ME is a platform for instant and cellular Java program improvement. starting J2ME makes this and the entire enjoyable you could have with it available to the 1st time instant Java developer in addition to precious to the skilled. This publication comprises insurance reminiscent of sound HTTPS aid, plenty of person interface API improvements, a online game API, sound/music API, 3D snap shots, Bluetooth, and masses extra. Its effortless to learn with plenty of useful hands-on and ready to use code examples.
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Extra info for Beginning J2ME: From Novice to Professional
It’s similar in concept to make, but it is cleaner and easier to use. org/. Ant is a tool for serious developers. If you believe you’ve exhausted the possibilities of the J2ME Wireless Toolkit, Ant is probably the next tool you should learn. Ant provides considerable flexibility in structuring your build cycle and lets you easily automate tasks like generating documentation or packaging source code. com/techtopics/mobility/midp/articles/ant/. The code download for this book includes an Ant build script.
The J2ME Wireless Toolkit includes a similar emulator, as well as several others. Once you’ve got a preverified class file, you can use the midp emulator to run it. The emulator is an application that runs under J2SE and acts just like a MIDP device. It shows itself on your screen as a representative device, a generic mobile phone. You can run your MIDlet by typing the following at the command line, assuming you added \midp\bin to your PATH: midp Jargoneer If you’re using the J2ME Wireless Toolkit, you can simply choose an emulator from the Device combo box and click the Run button to fire up your application.
Suppose the server we are using decides to return its Jargon File definitions in a different format; if four million users are running Jargoneer, then four million copies of our code have just broken. Performing this task on a server gives it a single point of failure and a single point of update. If we fix the parsing code on the server, the interface between the server and the client devices can remain unchanged. This makes it easy to upgrade or fix Jargoneer. Network MIDP applications are likely to need a server component.
Beginning J2ME: From Novice to Professional by Sing Li