Errata for Head First Java

Reads "Tha bin directory..." Should this read "The bin directory..."?

"...has her SCPJ 1.4 and SCWCD..." should be: "...has her SCJP 1.4 and SCWCD..." ^^

The sentence has the word "coded" twice.

Note from the Author or Editor:
Intro, page xxvi, 2nd paragraph: "...coded coded..." should be: "...coded..."

Sentence reads, So, the original Java was versions 1.02 (the first official release) through 1.1 were just "Java". Should read, So, the original Java, versions 1.02 (the first official release) through 1.1, were just "Java".

Load the Hello class -> Load the MyFirstApp class ########################################

x = x -1 should be x = x - 1

Analying the bug ... isin't it supposed to be 'analyzing'?

Note from the Author or Editor:
Yes, "Analying the bug in the Simple Dot Com Game" should be "Analyzing the bug in the Simple Dot Com Game".

Wrong way double-quotes in System.out.print(x + "" + y + " ");

Note from the Author or Editor:
In the white box with code, change the quotation marks in the "System.out.print" statement to be straight quotes.

The Pool Puzzle snippets System.out.print("a "); System.out.print("n "); should be: System.out.print("a"); System.out.print("n"); (i.e., remove spaces) and System,out,print("an"); should be: System.out.print("an");

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

In the 'Tip', the sentence that starts "Unless you're way smarter than us... it mentions diagrams "like the ones on page 55 and 56 of this chapter". remove "and 56"; it doesn't have any diagrams on it. [and a minor note that I'm sure will be chuckled at.... the first sentence should be "Unless you're way smarter than we are", not "us".

Note from the Author or Editor:
The "tip" should refer to pages 57-60.

Should outdent the two boldface lines to match the prior line.

The paragraph "(Remeber, null just means [...]" misses the closing parenthesis.

Maybe not a mistake - a few phrases end with two dots ("it should.." and "your access modi.."), maybe there should be three.

The "To Do" note obscures part of the text after "real code".

primtive should be primitive: "...you can put a primtive in an ArrayList..."

The following line should end with a question mark: But is it worth the miniscule performance gain to give up all this power.

In the K&B solution on page 148 for the "Sharpen your pencil" exercise on page 146, there is an extra annotation that isn't one of the possible annotations listed at the bottom of page 146. The "extra annotation" shown on page 148 is, "Make an ArrayList of DotCom objects (in other words, a list that will hold ONLY DotCom obects, just as DotCom[] would mean an array of DotCom objects).

This line of code should be outdented to match the curly braces above and below.

"We tried to keep it fairly small to you wouldn't have to type so much..." should be: "We tried to keep it fairly small so you wouldn't have to type so much..."

All references to chapter 16 on these pages should be references to chapter 17.

Reference to chapter 16 should be a reference to chapter 17.

"The Animal parameter can take ANY Animal type as the argument." Should be changed to: "The 'a' parameter can take ANY Animal type as the argument."

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

Misaligned line objects make it unclear just what is the correct answer for this exercise.

Note from the Author or Editor:
The 1st set of 3 on the left should point to the 2nd answer on the right. The 2nd set of 3 on the left should point to the 4th answer on the right. The 3rd set should point to the last answer. The 4th set - add the big curly brace and point it also to the 4th answer.

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. ########################################

References to "hashtables in chapter 17" should be changed to chapter 16. References to appendix B should be removed.

"... the compiler knows that its (should be 'it's') safe to cast anything that comes out of ArrayList do (should be 'to') a dog reference."

Note from the Author or Editor:
in the middle of the 2nd answer paragraph the line: "ArrayList do a Dog..." should be: "ArrayList to a Dog..."

Very minor printing error? For #4, there is a break in the arrow between the "Baz" and the "Bar" classes. This line should be solid.

Note from the Author or Editor:
Diagram #4, the arrow between Baz and Bar should be solid.

"clunkly" should read "clunky"

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

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

"Look at the Stack series on page 248 again." The page number should be 252, because, thats where the Hippo stack is.

The note (on page 254) reads: "There's an exception to this rule, you'll learn it on page 252". The errata is obviously the page number 252. Corrige: 256

Note from the Author or Editor:
The note at the bottom of the page should refer to page 256

"The rules are the same for primtives and references." "primtives" should read "primitives"

...but you can get a ... instead of ...but you can can get a ...

should read "rest of this API" currently is "rest of the this API"

Jimmy Hendrix should be changed to Jimi Hendrix

2nd edition. The underline looks out of place.

Something is strange here. In this text, it says that after foo() pops off the stack, there is nobody left to handle the exception, but there's still main(). I think that making the change "foo()" -> "main()" would solve the problem (if the reader assumes that "..." in "But foo() doesn't have a try/catch, so..." means that more text describing the process was omitted because the reader already knows what happens), but I would prefer that more text is added to make things clear.

Note from the Author or Editor:
Change the beginning of the description under the "main()" graphic to read: foo() pops off the stack and the exception is thrown back to main(). But main() doesn't have a try/catch so the exception is thrown back to... Editor note: From there use the existing text.

2nd edition. Minimal typo here (simple quotes): "For this book (...) so just imagine 'a a' music CD with (...)" -> There are two "a"s.

Ir is written this way which appears letters are missing. Ma i g a GUI is easy:

Note from the Author or Editor:
This problem doesn't show up in the PDF, but does on Safari. It appears in two places on the page: "If I see one more command-line app, you're fired." AND "Making a GUI is easy:"

Change: "...method from the ActionListener interrface" To: "...method from the ActionListener interface"

Text says You can NOT say: a.bark(); This is true but meaningless, just as you can NOT get up in the morning, but you choose to do so. It should be You CANNOT say: a.bark();

Note from the Author or Editor:
Change: You can NOT say: to: You CANNOT say:

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); ########################################

"and draw the imagine using" should be "and draw the image using"

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

Refers to pictures on p351, should be p369.

Note from the Author or Editor:
In the "sharpen" the page number should be: 369

// See page 347 for the code -> // See page 367 for the code ########################################

The comment in the paintComponent method of the MyDrawPanel refered to the wrong page. //See page 347 for the code should read: //See page 367 for the code

Note from the Author or Editor:
The last code comment on the page should read: // See page 367 for the code

Third bullet point is incorrectly labeled as bullet point 4.

"It builds directoy..." should read: "It builds directly..."

The line "public void paintComponent (Graphic" should read, "public void paintComponent (Graphics" - the trailing "s" in "Graphics" is missing.

"Graphics2d" -> "Graphics2D"

Note from the Author or Editor:
Who am I, antepenultimate answer, change from: "Graphics2d" to: "Graphics2D"

Minimal typo: there isn't a "i++,x++,y++" code snippet in this puzzle, so the correct would be "i++,y++,x++".

Note from the Author or Editor:
WOW!!!! In my copy of the 2nd edition, pages 393 and 396 ARE MISSING, and because of that, pages 394 and 395 ARE BACKWARDS. Once that's fixed, we can verify the possible typo. O'Reilly production: Unfortunately that must have been a printer error as our books in-house have those pages.

The text should read, "I need to know how big the button wants to be..." The word "be..." is missing.

list = new JList(listEntries); should be: JList list = new JList(listEntries); to remain consistent with the preceding pages

Note from the Author or Editor:
Constructor, 2nd line of code should be: JList list = new JList(listEntries);

"Let's..." should read: "Lets..."

"NOT OFF" -> "NOTE OFF"

replace "Carburator" with "Carburetor"

Note from the Author or Editor:
In the Brain Barbell the word: Carburator should be: Carburetor

after the comma between "bow" and "sword" the is a space, while there are no space after any of the other comma's.

In the sentence, "A File object is like a street address... it represents the name and location of a particular file..." the word "represents" appears to be crossed out when it should be underlined.

The "Make it Stick" box is overlapping the "Bullet Points" icon.

"affect" should be "effect": "...has no affect on..."

The last two lines of code should be outdented to line up with the first two lines.

Change the question mark at the end of this sentence to a period: "Reconstruct the code snippets to make a working Java program that produces the output listed below?"

Change the sentence, "In other words, by the time you call a BufferedWriter method, the writer doesn't know or care where the characters came from." To: "In other words, by the time you call a BufferedReader method, the reader doesn't know or care where the characters came from."

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

typo: "How do you do you do"

Note from the Author or Editor:
Last paragraph change: "How do you do you do two things..." to: "How do you do two things..."

Period missing from last sentence: "A new, separate stack"

Typo on makeWithdrawl(10) should be: makeWithdrawal(10)

"So if you don't lock the back account" should read "So if you don't lock the bank account"

"parcticle" should be "particle"

Note from the Author or Editor:
In the hand-written note at the bottom of the page: parcticle should be: particle

[now thread B is sent into a 'object lock not available lounge] should read: [now thread B is sent into an 'object lock not available' lounge]

TextArea incoming does not appear to fit the frame initially without resizing of the window. I think you need (something like) either: incoming = new JTextArea(15, 30); or: frame.setSize(800, 500);

Note from the Author or Editor:
Near the bottom, the code: frame.setSize(400,500); should be: frame.setSize(800,500);

The semicolon (";") which should be in the "return counter" box is actually in the "counter += add;" box.

"Let's..." should be: "Lets..."

Two errors: 1) "They" should be "The" in the second sentence. 2) "3)" should be "2)" on the second bullet.

1st sentence: ... "how the object's should be sorted." should be ... "how the objects should be sorted."

%java Mini should read: %java MyApp

Note from the Author or Editor:
The last command on the page: %java Mini should read: %java MyApp

The second bullet contains a superfluous "a". The sentence reads, "Make a text file named manifest.txt that has a one line:". The "a" before "one" is unnecessary.

%cd MiniProject/classes should read: %cd MyProject/classes

Note from the Author or Editor:
Command in step 3 should change: %cd MiniProject/classes should read: %cd MyProject/classes

The last sentence of the first Answer should end in a period instead of a question mark: "... even then the JVM looks only in the directories that match the package statement."

The end of the paragraph is obscured by the graphic.

"... you'll see the META-INF directory and the com directory directory in your current directory" Remove extra directory after "the com"

Sentence should read, "To make a Java Web Start app, you need to create a .jnlp (Java Network Launch Protocol) file ..."

... "as though its calling a method"... should be ... "as though it's calling a method"...

"reigstry" should be "registry"

Note from the Author or Editor:
Last bullet "reigstry" should be "registry"

"reuslt" should be "result"

Note from the Author or Editor:
In the 4th code annotation "reuslt" s/b "result"

"mor" should be "more"

To be "state of the art," the Traverser's code would need to be Java 5, not Java 1.4.

Note from the Author or Editor:
End of para. 1 should read: ... state of the art Java 6 code.