Is there a way to run the BouncingBalls example from the command
line? When I try to run the example and include the Jurtle.jar file
in the classpath I get a NullPointerException. I would like to
reapply this concept to launch my own graphic program. Is there some
kind of Graphics or Component layouts that I need to setup before
instantiating the BouncingBalls object?

Exception in thread "main" java.lang.NullPointerException
at com.otherwise.jurtle.Turtle.<init>(SourceFile:77)
at BouncingBalls.<init>(BouncingBalls.java:22)
at BouncingBalls.main(BouncingBalls.java:70)