<P> GridWorld is a computer program case study written in Java that was used with the AP Computer Science program from 2008 to 2014 . It serves as an example of object - oriented programming ( OOP ) . GridWorld succeeded the Marine Biology Simulation Case Study , which was used from 2000 -- 2007 . The GridWorld framework was designed and implemented by Cay Horstmann , based on the Marine Biology Simulation Case Study . The narrative was produced by Chris Nevison and Barbara Cloud Wells , Colgate University . </P>
<P> GridWorld is a computer program case study written in Java that was used with the AP Computer Science program from 2008 to 2014 . It serves as an example of object - oriented programming ( OOP ) . GridWorld succeeded the Marine Biology Simulation Case Study , which was used from 2000 -- 2007 . The GridWorld framework was designed and implemented by Cay Horstmann , based on the Marine Biology Simulation Case Study . The narrative was produced by Chris Nevison and Barbara Cloud Wells , Colgate University . </P>
when is the last time for the gridworld case study to be tested
when is the last time for the gridworld case study to be tested
2014
2014