May 2001
Intermediate to advanced
1088 pages
30h 13m
English
Content preview from Special Edition Using Java™ 2 Enterprise Edition
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A Wireless "Hello World" Page
Listing 53.1 shows the ubiquitous "Hello World" application for a wireless device.
Code Listing 53.1. Source Code for WirelessHello.jsp
<%@ page language="java" contentType="text/vnd.wap.wml" %>
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="hello">
<p>
Hello Wireless World!
</p>
</card>
</wml>
|
The first thing you might notice in WirelessHello.jsp is that the content type is not text/html. Of course, it isn't text/wml either, which would probably make a lot more sense than text/vnd.wap.wml, but that's the way it is.
After you get past the <%@page line, the file looks like a typical XML file. You must always have the <?xml header. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.