Gives students easy access to explanations of most syntax and semantic errors in Java programs, and how to correct them, in one location.

Shows students how to trace the changes in variables and follow the execution of the program to locate errors that are not obvious. Saves instructors an incredible amount of time in answering students' questions by having them trace a program and locate the problem on their own.

Introduces students to the next step after tracing, and shows them how specific Java debuggers work by allowing them to stop the program at any point and keep track of all changes in variables.

Provides students with a one page checklist of common bugs to go through quickly in order to see where the problem might be.

Presents students with a motivational beginning to their study, with material that summarizes the sources of errors in computer programs.

Supplies students with a small book that is easy to take to the computer lab for use while running and debugging programs.