| Page |
Correction |
| 48 |
Updated the sources for more object-oriented programming
information. |
| 54 |
Updated Figure 11 to read "Method
Parameter Scope" rather than "Member ..." |
| 61 |
In third paragraph: Changed "This operator is a tertiary
operator..." to "This operator is a ternary
operator..." |
| 62 |
Deleted two sentences in the second paragraph: "A right
shift of 1 bit ...multiplying by 2." Sentences were not replaced. |
| 88 |
In the third full paragraph, clarified the use of "default
constructor." The first sentence now reads: "A constructor that takes
no arguments, such as the one shown, is called a no-argument
constructor." |
| 96 |
In the next-to-last paragraph, changed: "It also defines
one constructor-- the default constructor..." to "It also defines one constructor--a
no-argument constructor..." |
| 97 |
Added the following highlighted words: " Similarly... the
compiler chooses the no-argument constructor or the
default constructor..." |
| 124 |
Updated the second paragraph to read: " The no-argument
constructor doesn't let the caller provide initial values for anything
and the other two constructors let the caller set the initial values either
for the size or for the origin and the size." |
| 136 |
Updated the Stack class code. The highlighted code has
been added or changed:
public String toString() {
int n = items.size();
StringBuffer result
= new StringBuffer();
result.append("[");
for (int i = 0; i <
n; i++) {
result.append(items.elementAt(i).toString());
if (i < n-1) result.append(",");
}
result.append("]");
return result.toString();
} |
| 139 |
In the first line of code on p. 139, "Clone" should
be lower-cased. Therefore, the line of code should read: protected
Object clone() { |
| 139 |
Clarified the explanation of the clone method
in the first paragraph:
The implementation for Stack's clone method is relatively
simple: It calls super.clone (Object's
implementation of the clone method) to create
an instance of the correct type. The only member of Stack,
a Vector, is also cloneable. Be careful: clone should
not use new to create the clone and should not call constructors.
Instead, the method should call super.clone, which creates an
object of the correct type and allows the hierarchy of superclasses to
perform the copying necessary to get a proper clone. |
| 155 |
Updated the code for the StackEnum class:
class StackEnum implements Enumeration
{
int currentItem = items.size()
- 1;
public boolean hasMoreElements()
{
return (currentItem >= 0);
}
public Object nextElement()
{
if (!hasMoreElements())
throw new NoSuchElementException();
else
return items.elementAt(currentItem--);
}
} |
| 156 |
Updated the code for the enumerator method:
public Enumeration enumerator() {
return new Enumeration() {
int currentItem
= items.size() - 1;
public boolean
hasMoreElements() {
return (currentItem >= 0);
}
public Object
nextElement() {
if (!hasMoreElements())
throw new NoSuchElementException();
else
return items.elementAt(currentItem--);
}
}
} |
| 175 |
Figure 31 was updated to indicate that there is at least one class
between Container and Applet. |
| 317 |
In the first full paragraph, the second sentence was corrected
to read: "Let's modify the writeList method to specify the exceptions
that it can throw instead of catching them." |
| 331 |
The code for the SimpleThread class was corrected
so that the sleep method takes a long (rather than an int). The correct
line of code is:
sleep ((long))Math.random()
* 1000)); |
| 407 |
In the first sentence under "Getting configuration information from
the user," the words "the applet" were changed to "a program." The
revised sentence is: "Users can specify configuration information to a
program using..." |
| 456 |
In the first line of the first code snippet, "( )" was added before
the semicolon. The revised line of code looks like this:
Panel p1 = new Panel(); |
| 469 |
In the first code snippet, the duplicate definition of mouseEntered
was deleted. |
| 469 |
In the second code snippet, the following lines of code were added:
//An example of extending an adapter class.
public class MyClass extends MouseAdapter {
...
someObject.addMouseListener(this);
...
public void mouseClicked(MouseEvent e) {
...//Event handler implementation
goes here...
}
} |
| 470 |
In the first code snippet, the name of the inner class was changed
from MyClass to MyAdapter. Therefore, the inner
class's declaration is now:
class MyAdapter
extends MouseAdapter { |
| 477 |
Minor correction in the sentence under the "Container Event
Methods" heading: "The ContainerListener interface... and ContainerAdapter
contain two methods." |
| 481 |
Minor correction in the second sentence of the last paragraph:
"Here is the applet's focus-event handlling
code:" |
| 487 |
Deleted superfluous "the" in the last sentence on this
page. |
| 494 |
In the second sentence of the first paragraph, changed
"methods" to its singular ("method"). |
| 500 |
Minor correction: In the first sentence under the heading
"The WindowEvent Class," the sentence was changed from "Each mouse
event method..." to "Each window event method..." |
| 504 |
In the third paragraph under the "Using Layout Managers"
heading, some wording was modified to reflect the placement of the screenshots
on p. 505. |
| 505 |
Minor change: In the first sentence of the last paragraph,
"an" should be "and." |
| 522 |
In the first full paragraph, the second sentence was corrected
to read: "Instead of implementing LayoutManager
directly, some layout managers implement the LayoutManager2
interface." |
| 546 |
In the second-to-last line of the code snippet, a filter argument
was added to the FilteredImageSource constructor. The revised
code looks like this:
ImageProducer producer = new FilteredImageSource(
sourceImage.getSource(),
filter); |
| 548 |
In the seventh line on the page (in the code snippet), a filter
argument was added, as in the above correction for page 546. |
| 566 |
In the code snippet, in the paintFrame method, the comments
were reversed. The first one now reads:
//If we have a valid width and height for the background
//image, draw it.
The second comment now reads:
//If we have a valid width and height for the foreground
//image, draw it. |
| 568 |
In the 7th line of the code snippet, a quotation mark was inserted
before the T. Like this: "T"+i+".gif"); |
| 570 |
An additional closing bracket "}" was added after the code
snippet. Like this:
else {
..//same code as before...
} |
| 588 |
In the second sentence of the third paragraph, the word
"correct" was replaced with "incorrect." |
| 622 |
In the first code snippet, the second line of code was
corrected to read:
DataGramPacket packet
= new DataGramPacket(buf, buf.length); |
| 711 |
A mention of Swing was changed in the second line of the program ScrollingSimple.java:
java.swing.TextField;
was changed to this:
java.awt.TextField; |
929-
930 |
The following sentence was added to the first paragraph
in the "Java Language Keywords" section:
true, false, and null are not keywords
but they are reserved words, so you cannot use them as names in your programs
either.
true, false, and null were removed from Table
41: "Reserved Java Keywords." strictfp was added to Table 41 since
strictfp was designated a reserved keyword in the Java 2 Platform. |
