How
to Use BO Demos. ©2002, Jedidiah R. Crandall, Susan L. Gerhart, Jan G.
Hogle.
http://sfsecurity.pr.erau.edu
1 - buttons
•Click
“Step Forward” to execute one line of the program.
•Click “Reset” to start over.
•“Play,”
“Stop,” and “Step Back” are disabled in this version of the applet.