by Jeffrey Elkner
To paraphrase the philosophy of the Free Software Foundation, this book is free like free speech, but not necessarily free like free pizza. It came about because of a collaboration that would not have been possible without the GNU Free Documentation License. So we would like to thank the Free Software Foundation for developing this license and, of course, making it available to us.
We would also like to thank the sharp-eyed and thoughtful readers who have sent us suggestions and corrections over the years. In the spirit of free software, we decided to express our gratitude in the form of a contributor list. Unfortunately, this list is far from complete. It gets too large to include everyone who sends in a typo or two. You have our gratitude, and you have the personal satisfaction of making a book you found useful better for you and everyone else who uses it.
If you have a chance to look through the list, you should realize that each person here has spared you and all subsequent readers from the confusion of a technical error or a less-than-transparent explanation, just by sending us a note.
If you should stumble across an error, we hope you will take a minute to contact us. The email address is firstname.lastname@example.org . Substantial changes made due to your suggestions will add you to the next version of the contributor list (unless you ask to be omitted). Thank you!
First Edition of 2002¶
As a busy student in his senior year at Yorktown High School in Arlington, VA, Paul Bui took on as a project the adaption of this book from its original version using Java to this version using C++.
Paul was one of those students who took the AP Computer Science exam (he took the discontinued AP Computer Science AB exam) during the four years it was given in C++.
Together with classmates Jonah Cohen, Charles Harrison, Donald Oellerich, Drew Stephens, and his brother Peter Bui, they produced the first version of this textbook in C++. They are were all high school students when they did that, so this is a wonderful example of the power of open educational resources <https://en.wikipedia.org/wiki/Open_educational_resources>_ to enage learners in high level learning.
More than two decades later, Paul is now a veteran computer science teacher at Washington-Liberty High School <https://en.wikipedia.org/wiki/Washington-Liberty_High_School>_ in the same Arlington County School system from which he graduated.