Errata

"In ActionScript, a method signature also includes each parameter's datatype and the method's return type."

The example of the signature for the eat method is given as eat(numberOfCalories).

Shouldn't it show the datatype of the parameter?

The example of the getAge method is given as
getAge().

Shouldn't it indicate the method's return type?

In the example 1-2. Zoo program, the eat() instance method should be invoked in the VirtualZoo class. The VirtualZoo() constructor should be:

public function VirtualZoo() {
this.pet = new VirtualPet("Stan");
this.pet.eat(50); // missing line
}

Function "contains" must be static, but in example it's not static:
public function contains (string, character){
->
public static function contains (string, character){

Where 'src' is stated as the directory for the .as files, it should be 'zoo'. Or the other way around. The .as directory has to be 'zoo' and the document class referenced in the main .fla file must be 'zoo.VirtualZoo'. The source directory and the document class prefix must match for the compiling to work.

book details the source code for the virtual zoo program residing in virtualzoo/src/ whereas it should actually reside in virtualzoo/zoo. Otherwise the package zoo will not compile properly.

The "result after conversion" description for "Number or int" says that it's an integer in the range 0 -- 2^31-1, but the upper bound is actually 2^32-1 (because it doesn't need the extra bit for the sign).

The code snippet explaining Array.push() and returning length is incorrect.

var list:Array = [12,23,98];
trace(myList.push(28,36));

It uses "list" in the first line, then "myList" in the 2nd.

The line "Invoke push( ), unshift( ),or splice( ) on the array" should be "Invoke pop( ), unshift( ),or splice( ) on the array".

This error also appears on the Safari Books Online version.

Code as printed doesn't draw a rectangle or circle unless I add "this.addChild(rectAndCircle);" to the GreetingApp constructor

I believe that
import flash.display.*;
should be
import flash.text.*;

and

html = true;
isn't defined.

the following link is no longer working:

http://livedocs.macromedia.com/flash/8/main/00001686.html

I thought the avoidance of 'magic numbers' and adherence to named constants was something you were trying to instil. Yet scale mode and joints arguments don't refer to constants on page 639, in the same way they do on page 638. I'd suggest fixing this in future editions.

This is more of a suggestion than an error.
I picked this tip up from Yakov in the Enterprise Development with Flex book...
Use symlinks (or for the poor souls using (Yuck!) Microsoft - Junction - You can find this via System Internals.
This way if two users on different machines setup a font folder symbolic link (like an alias for XP), they can do so by using conventions across the team. Makes more sense in bigger organisations, where people may have different configurations of hardware/software/ Operating systems/fonts/links to server resources etc.

<FONT FACE="Times New Roman">
"In certain situations, this security limitation can be avoided using <I>import loading</I>, wherein <i>Main.swf</I> uses a <I>LoaderContext </I>object to import <I>Module.swf</I> into its security domain. The following code demonstrates:
</FONT>
<BR>
<FONT FACE="Courier New">
&nbsp;&nbsp;&nbsp;var loaderContext:LoaderContext = new LoaderContext();
&nbsp;&nbsp;&nbsp;<B>loaderContext.applicationDomain = ApplicationDomain.currentDomain;</B>
&nbsp;&nbsp;&nbsp;var loader:Loader = new Loader();
&nbsp;&nbsp;&nbsp;loader.load(new URLRequest("Module.swf"));</FONT>
<BR>
<FONT FACE="Times New Roman">
For complete information on import loading, see the section "Import Loading" in Chapter 19."
<P></P>
Upon noting that it didn't change anything other than the formatting of the previous code block, I was confused and refreshed myself as per suggestion of Chapter 19. There I noticed the definition of import loading on P. 447:
"Using the</FONT><FONT FACE="Courier New"> securityDomain</FONT><FONT FACE="Times New Roman"> to gain distributor permission to import a <I>.swf</I> file's classes into an application domain (as shown in the preceding code) is known as <I>import loading</I>."
<BR>
Thus, I think the code block should be rewritten as follows:
</FONT>
<BR>
<FONT FACE="Courier New">
&nbsp;&nbsp;&nbsp;var loaderContext:LoaderContext = new LoaderContext();
&nbsp;&nbsp;&nbsp;loaderContext.applicationDomain = ApplicationDomain.currentDomain;
&nbsp;&nbsp;&nbsp;<B>loaderContext.securityDomain &nbsp;&nbsp;&nbsp;= SecurityDomain.currentDomain;</B>
&nbsp;&nbsp;&nbsp;var loader:Loader = new Loader();
&nbsp;&nbsp;&nbsp;loader.load(new URLRequest("Module.swf"));</FONT>

Sorry about the HTML, here is a more readable version:
(if this doesn't support BB Code either, [b]bolded stuff[/b] is where it is bolded, and later represents where I suggest the bolding be placed.)

"In certain situations, this security limitation can be avoided using import loading, wherein Main.swf uses a LoaderContext object to import Module.swf into its security domain. The following code demonstrates:

var loaderContext:LoaderContext = new LoaderContext();
[b]loaderContext.applicationDomain = ApplicationDomain.currentDomain;[/b]
var loader:Loader = new Loader();
loader.load(new URLRequest("Module.swf"));

For complete information on import loading, see the section "Import Loading" in Chapter 19."

Upon noting that it didn't change anything other than the formatting of the previous code block, I was confused and refreshed myself as per suggestion of Chapter 19. There I noticed the definition of import loading on P. 447:
"Using the securityDomain to gain distributor permission to import a .swf file's classes into an application domain (as shown in the preceding code) is known as import loading."

Thus, I think the code block should be rewritten as follows:
var loaderContext:LoaderContext = new LoaderContext();
loaderContext.applicationDomain = ApplicationDomain.currentDomain;
[b]loaderContext.securityDomain = SecurityDomain.currentDomain;[/b]
var loader:Loader = new Loader();
loader.load(new URLRequest("Module.swf"));