HOW TO PLAY JAVA APPLETS IN YOUR OWN BROWSER

 As of Fall 2017, neither the standard Firefox
browser nor the Google Chrome browser will play
Java applets.  Use Internet Explorer on a Windows
system, or use Safari on a Mac system.  For Linux
users, investigate installing the Firefox ESR
browser through a ppa; that version of Firefox
will play Java applets.  Thanks.  GBA

 First you need to bring up the Java Control Panel.
To do this in Windows, use the Start button, then
type "java" into the Search space, and then select
"Configure Java".

 Once the Java Control Panel is up, select "Security"
then "Edit Site List...".  Now you are ready to add
to the list of sites which will be allowed to play
Java Applets within your browser.

 Here is a picture of the Java Control Panel with
the Security tab active.

 Let's say you wish to play the Newtonian Mountain
Gravity simulation located at the website:

http://galileo.phys.virginia.edu/classes/109N/more_stuff/Applets/newt/newtmtn.html

To play this applet you will need to add the site:

http://galileo.phys.virginia.edu

to the Site List that you now have open within
your Java Control Panel.  Copy and paste the
site info into the Exception Site List and then
click Add, Continue, and OK as needed to add as
many sites as you wish.  Any site you have
added into the Exception Site List will now be
eligible to play Java Applets within your
browser.  Clike "OK" to close the Java Control
Panel, and you are then ready to play any Java
Applets from the sites you have added.

 The website from which these instructions were
taken is here (see the section entitled WORKAROUND).

 Thanks. GBA

PS.  If you have trouble with these instructions,
please send me an email or stop by my office hours.
Thanks again.  GBA