June 2001
Intermediate to advanced
888 pages
21h 1m
English
Content preview from Java Cookbook
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Java Web Start
Problem
You have an application (not an applet) and need to distribute it electronically.
Solution
Sun’s Java Web Start combines browser-based ease of use with applet-like " sandbox” security (which can be overridden on a per-application basis) and “instant update” downloading, but also lets you run a full-blown application on the user’s desktop.
Discussion
Java Web Start (JWS[55]) is a new technology for providing application downloads over the Web. It is distinct from applets (see Chapter 17), which require special methods and run in a browser framework. JWS lets you run ordinary GUI-based applications. It is aimed at people who want the convenience of browser access combined with full application capabilities. The user experience is as follows. You see a link to an application you’d like to launch. If you’ve previously installed JWS (explained toward the end of this recipe), you can just click on its Launch link and be running the application in minutes. Figure 23-6 shows the startup screen that appears after clicking a Launch link for my JabaDex application.
Figure 23-6. Starting JabaDex as a JWS application
After the application is downloaded successfully, it will start running. This is shown in slightly compressed form in Figure 23-7.
Figure 23-7. JabaDex up and running ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.