All of this has been very helpful.
I am a first year java programmer and have a hard time understanding much of what y'all are saying.
Here is the code I used for my program, hopefully this is more informative than my shoddy explanation to start with.
To repeat, All I want to do is reset the Thread and have it start again each time I click the Space key.
And if there are any other general programming etiquette problems, I'd appreciate the help.