Head First Java, 2nd Edition
by Kathy Sierra, Bert Bates


The following errata were *corrected* in the 2/07 reprint:


This page was updated February 26, 2007 


Here's a key to the markup:
	[page-number]: serious technical mistake
	{page-number}: minor technical mistake
	<page-number>: important language/formatting problem
	(page-number): language change or minor formatting problem
	?page-number?: reader question or request for clarification
	+n:  n'th paragraph from the top of the page
	-n:  n'th paragraph from the bottom of the page

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{xxvii}  10th bullet

For long examples or Ready-bake code, you can download the source files
from headfirstjava.com
->
For long examples or Ready-bake code, you can download the source files 
from wickedlysmart.com

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(9)  +2

Load the Hello class
->
Load the MyFirstApp class

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(66)  left column under "Tip"

on page 55 and 56
->
on page 55 and 57

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(190)  2nd-to-last box, line 2

public boolean turnOn()
->
public boolean turnOff()

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(208)  box, under "boolean remove"

Removes the object at the index parameter. Returns 'true' if the element
was in the last
->
Removes one instance of the object specified in the parameter. Returns 
'true' if the element was in the list.

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(247)  +1

The class below is legal because all four constructors...
->
The class below is legal because all five constructors...

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(247)  gray box on top right

Four different constructors means four different ways to make a new mushroom.
->
Five different constructors means five different ways to make a new mushroom.

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{292}  4th line of code under "Converting a string..."

boolean b = new Boolean("true") .booleanValue();
->
boolean b = Boolean.parseBoolean("True");

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{292}  2nd annotation on page

You'd think there would be a Boolean.parseBoolean() wouldn't you? But there
isn't. Fortunately there's a Boolean constructor that takes (and parses) a
String, and then you just get the primitive value by unwrapping it

->

The (new to 1.5) parseBoolean() method ignores the cases of the characters 
in the String argument.

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(367)  code at bottom

int red = (int) (Math.random() * 255);
int green = (int) (Math.random() * 255);
int blue = (int) (Math.random() * 255);
Color startColor = new Color(red, green, blue);

red = (int) (Math.random() * 255);
green = (int) (Math.random() * 255);
blue = (int) (Math.random() * 255);
Color endColor = new Color(red, green, blue);

->

int red = (int) (Math.random() * 256);
int green = (int) (Math.random() * 256);
int blue = (int) (Math.random() * 256);
Color startColor = new Color(red, green, blue);

red = (int) (Math.random() * 256);
green = (int) (Math.random() * 256);
blue = (int) (Math.random() * 256);
Color endColor = new Color(red, green, blue);

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(370)  Sharpen your pencil box

Given the pictures on page 351
->
Given the pictures on page 369

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(371)  last line of code

// See page 347 for the code
->
// See page 365 for the code

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{485}  7th bullet point, 3rd line

sock.getInputStream();
->
sock.getInputStream();
sock.getOutputStream();

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(487)  last annotation

Remember, the writer is chained to the input stream...
->
Remember, the writer is chained to the output stream...

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<591>  +3 (last sentence obscured by graphic)

Compiling with -d tells the compiler to not just <i>put</i> your classes into
correct directory tree, but to the directories if they don't...
->
Compiling with -d tells the compiler to not just <i>put</i> your classes into
the correct directory tree, but to <i>build</i> the directories if they don't exist.

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