The NumberCube problem from the 2009 AP Computer Science Exam is typical of free response problems that test arrays.

The StockpileCritter problem from the 2009 AP Computer Science Exam is typical of free response problems that test GridWorld: The AP Computer Science Case Study. The problem requires you to extend the Critter class, determine which methods to override, and implement the entire subclass.

The BatteryCharger problem from the 2009 AP Computer Science Exam is typical of free response problems that test arrays.

The TileGame problem from the 2009 AP Computer Science Exam is typical of free response problems that test Lists. The problem requires you to manipulate a List and the objects inside.

The College Board released the complete 2009 AP Computer Science A Exam, including the multiple choice section. While their released exam includes detailed explanations for each free response question, it does not offer detailed explanations for each multiple choice question. Question by question explanations for the 2009 AP Computer Science A Multiple Choice Section are ...