We try to keep our books accurate, but sometimes mistakes creep in. This page lists the errors submitted by our astute readers. If you've found a new error, please submit it.

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Key: Typo Tech. Error Suggestion Not a problem Next edition

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(To find out what version you have, look at the copyright page, a few pages in from the front of the book. If it says (say) 'Second Printing', then here it'll be P2.0. If there are interim PDF releases in that printing, they'll be 2.1, 2.2, and so on.)

PDF Paper Description Found in Fixed in
7
#29431: Example for C++ is not quite correct. Function findAverage() in base class is private, then SampleImpelentation class inherit publically. Co...more...
 P2.0
17-Aug-07
26
#25753: Point 5 of the "Order a Pizza" test case says nothing about checking the pizza for extra or missing ingredients, let alone issues such as ingr...more...
 P1.0
20-Aug-06
29

#29122: I believe "observer" in the Customer class's set_address and set_name methods should be "the_observer".--Bart van der Zwet

 P2.0
23-May-07
40
#29126: I think "print length of theTopping" in the second pseudocode sample on this page should be "print length of theToppings" given the declaratio...more...
 P2.0
24-May-07

Stuff To Be Considered in the Next Edition

PDF Paper Description Found in Fixed in
29
#25664: The paragraph after the Customer interface uses different method names than in the interface. Readers not familiar with Ruby might not see th...more...
 P1.0
07-Aug-06
133

#25679: Be consistent in the WebPage and URL data interfaces. URL is preceded with the word "data" while WebPage is not.--Kyle Blaney

 P1.0
07-Aug-06