Learning C# 3.0 Unconfirmed Errata

Errata

Submit your own errata for this product.

The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious Technical Mistake Minor Technical Mistake Language or formatting error Typo Question

Version	Location	Description	Submitted By
Safari Books Online	Answers Appendix Top of page, first answer.	http://my.safaribooksonline.com/9780596155018/chapter_4_operators Solution to Question 4-2. To assign the same value to multiple variables, simply chain the assignments, like this: int a = b = c = d = 36; The above statement creates 3 errors: The name 'b' does not exist in the current context The name 'c' does not exist in the current context The name 'd' does not exist in the current context The following works: int a,b,c,d; a = b = c = d = 36;	Shannon Barta
Printed	Page 40 In "The Macro Explorer Window" paragraph	"The Macro Explorer is the one of the main tools" should be "The Macro Explorer is one of the main tools"	Stephen Korow
Printed	Page 47 sample code	On page 47 is listed the following sample code: int myDouble = 4.7; // other code here... int myInt = (int) myDouble; // explicit conversion Shouldn't the line; int myDouble = 4.7 be double myDouble = 4.7; for this to make sense?	Anonymous
Printed	Page 52 3rd code example on page	Code example for the Console.WriteLine method makes it appear as though you can enter the quoted string on more than one line, but this will not compile - you will get a 'newline in constant' error message due to a newline character (an actual one, not an escaped character) in the string. The text does not explain that the string is split to fit on the printed page, but must all be entered on one line in the editor.	Tim Jones
Printed	Page 57 code snippet before last paragraph	int myDouble = 4.7; should be double myDouble = 4.7;	Stephen Korow
Printed	Page 57 code example at the bottom of the page	shouldn't myDouble be of type "Double" instead of type "int". Otherwise, there is no need for the explicit cast. Also, you'll get an error because you are trying to assign the value "4.7" to an int variable.	Stephen Korow
Printed	Page 58 first paragraph	The last sentence of the first paragraph on page 58 states that the reader is almost guaranteed to lose value sooner or later. While I agree with the sentiment, I believe you meant to say that that "you are almost guaranteed to lose a value sooner or later" or possibly "lose precision in a value sooner or later".	Stephen Korow
Printed	Page 77 First example	book r = true; is supposed to be: bool r = true;	Lucas Jarmin
Printed	Page 84 Exercise 4-4	This is picky, but units of area and units of volume are not comparable, therefore it doesn't quite make sense to say which result is greater. What high school did the author attend?	Tim Jones
Safari Books Online	103 code example after 3rd paragraph	Console.WriteLine("Enter your input string.") statement needs to end with a semicolon.	Tim Jones
Printed	Page 226 third code example	You intend to derive MyOtherClass from MyClass. The code example has this reversed.	Eric Bank
Printed	Page 230 In "Overriding Virtual Methods"	In the first code example in "Overriding Virtual Methods," the name of the method is erroneously changed from DrawControl to DrawWindow.	Lucas Jarmin
Printed	Page 233 Throughout page	Don't you think you should have made explicit the fact that if you polymorphically call a method that uses new instead of override, that the base class version of the method executes?	Anonymous
Printed	Page 235 first paragraph	The keywords abstract and public should be interchanged in position. abstract public void DrawControl(); should be public abstract void DrawControl();	Paul Lin
Printed	Page 254 Paragraph starting with "To implement the conversion operator, ..."	The last sentence of the paragraph reads: "For example, to convert your Fraction to an int, you do this:" should read: "For example, to convert your int to a Fraction, you do this:" Its only a sloppy error, but it confused me for a couple of minutes that I will never get back.	Anonymous
Printed	Page 472 White House Presidents Image URL in code example	The URLs for the images have been changed and are different from both the book version and the downloadable example. Pay attention to the spelling of the URLs for images to the 8th, the 15th and the 19th presidents.	He Wang
Printed	Page 567 1st paragraph or the Example 10-4 code	Exercise 10-4 asks for a method to initialize the chessboard array and a method to test whether a square is black or white. The sample solution ignores the word "method". The initialization and testing code are just part of the Run() method. Either the question or the sample code is wrong.	Anonymous
Printed	Page 601 top	Exercise 14-3 is about Stacks & Queues. Shouldn't the solution involve Pop & Dequeue? The solution in the book just iterates through the stack & queue with a foreach loop and ToString(essentially). I did this instead: Console.Write("Clearing the animal Stack:"); int stackCount = myAnimalStack.Count; // can't use .Count in loop for (int i = 0; i < stackCount; i++) // it drops by 1 with each Pop { Console.Write("\n(Pop): {0}", myAnimalStack.Pop()); } Console.Write("\nClearing the animal Queue:"); int queueCount = myAnimalQueue.Count; for (int i = 0; i < queueCount; i++) { Console.Write("\n(Dequeue): {0}", myAnimalQueue.Dequeue()); }	Anonymous