hi sir...
  I'm a college student, I have a graduation project, I loved this simulation, and I want to implement.
First:
- Install the Java JDK.
- Opened file TrafficControl with the textpad and saved the file to  TrafficControl.java
(But I can't find implementation"RUN"). Are my steps correct? What are the right steps?

Second:
How can I work extra opposite direction of the vector cars from left to right?
Please help.

Thank you