At 9:12 AM 6/16/3, [EMAIL PROTECTED] wrote: > Scotttrader at www.scotttrader.com provides a free java applet > that allows you to monitor stock positions in real time.
I didn't see it on the front page or "stocks" link there, sorry... the following won't be a first-hand comparison. > In general it is fast and quite nice, but suffers from some of the > common Java applet problems [works with only certain browser versions, > displays differently (incorrectly) in different browser versions, > does not play nicely with other browser windows]... Would a Flash > implementation perform as well, worse, better than the Java applet? The main problem with client-side Java is player heterogeneity... there are multiple brands of Java Virtual Machines. A secondary problem is the download cost of versioning... small downloads tend to get greater update rates than do large downloads. (For proof of that latter point, compare the versioning stats for the Macromedia Flash and Shockwave Players... the smaller downloads tend to be more up-to-date than the larger downloads.) I can't see the drawing methods used in that applet at scotttrader.com, but I don't know of any drawing methods available in popular Java VMs that are not available in the Flash Player. Bar charts, fever graphs, pie charts... these are standard display methods. For performance I'd expect similar retrieval, computation and display costs. The biggest difference between Java and Flash may be in startup costs... a SWF in a page usually starts up much more quickly than a Java applet does. The biggest problem with such an application may be in finding a data source. Once you get a good live feed then it should be straightforward to render it to screen...? jd John Dowdell, Macromedia Developer Support, San Francisco (Best to reply on-list, to avoid my mighty spam filters!) Technotes: http://www.macromedia.com/support/search/ Column: http://www.macromedia.com/desdev/jd_forum/ Technical daily diary: http://www.macromedia.com/go/blog_jd ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
