Hi. I downloaded the jaf10.zip file from java.sun.com around June 27th.
Maybe it's been updated since then, but there seems to be a bug in one
of the demos, FileView.java. Here's a snapshot from my DOS window:

> F:\jerry\project\from_net\sun\jaf\demos>javac FileView_URL.java
> FileView_URL.java:44: Undefined variable or class name: dh
> CommandInfo bi = dh.getCommand("view");
> ^
> FileView_URL.java:52: Undefined variable or class name: dh
> frame.add((Component)dh.getBean(bi));
> ^
> 2 errors

The problem is in this code, which I modified by following the
instructions (comment out previous two lines, uncomment next line):

        // FileDataSource fds = new FileDataSource(filename);
        // DataHandler dh = new DataHandler(fds);
        // comment out previous two lines, and uncomment next
        // line and pass in a URL on the command line.
        DataHandler df = new DataHandler( new URL(filename));

        CommandInfo bi = dh.getCommand("view");

The "DataHandler df" should be changed to "DataHandler dh"; otherwise
all references to dh need to be changed to df.

Also: I haven't looked at the problem, but the window which opens
*ignores* Win95 window-closing commands like clicking the X box or using
Alt-F4 or using "Close" on the window menu. I kill it by pressing
Ctrl-C in the DOS window where I typed "java FileView ...".