... can classes written in Visual Basic be called from C# or
C++ (or any other .NET language), a class that was written in Visual Basic can be used as a base class
for a class written in C#, and ... searches local variables and parameters for a name before
searching instance members. When referring to an instance variable with the same name as a
parameter, the this.<name>...
... Furthermore, there are several
advantages to building PHP as a server module, therefore I'll concentrate solely
on building PHP both as a static and a dynamic module. As it relates to installa-
tion, ... display, and manipulate user input.
Chapter 11, “Databases,” highlights PHP s vast support for database servers,
focusing on the MySQL database to show how PHP can act...
... display, and manipulate user input.
Chapter 11 , “Databases,” highlights PHP s vast support for database servers,
focusing on the MySQL database to show how PHP can act as an efficient inter-
face ... want to build PHP as a CGI binary. Furthermore, there are several
advantages to building PHP as a server module, therefore I'll concentrate solely
on building PHP both a...
... Global Variables
In contrast to local variables, a global variable can be accessed in any part of the
program. However, in order to be modified, a global variable must be explicitly
declared to ... in
which it is declared. PHP variables can be one of four scope types:
ã Local variables
ã Function parameters
ã Global variables
ã Static variables
Local Variables
A variable declared...
... to N arrays together, appending each to
another in the order in which they appear as input parameters. The function’s
syntax is:
array array_merge (array array1, array array2, . . ., array arrayN)
The ... array)
array_walk()
The array_walk() function provides an easy way to apply a function to several or
all elements in an array. Its syntax is:
int array_walk(array array, string fu...
... and instead
will just act as the base for a derived class. This kind of class is known as an ab-
stract class. An abstract class is useful when a program designer wants to ensure
that certain functionality ... 6-5.
Chapter 6
132
NOTE Keep in mind that although a class can inherit characteristics from
a chain of parents, the parents’ constructors are not called automatically
when you...
... POSIX
section.
Metacharacters
Another cool thing you can do with Perl regexps is use various metacharacters to
search for matches. A metacharacter is simply an alphabetical character preceded
by a backslash that acts to ... Linking
Just as a link can be used to direct a user to an HTML page, it can be used to lead
to a PHP- enabled page, as shown here:
< ;a href = &q...
... relational databases.
A relational database is essentially a database implementation where all data is
organized into related table structures. It is possible to create tables that “relate”
to ... can dene the various constructs that the
database uses to store the data.
ã Data querying: SQL can retrieve data in the database and present it in an
easily readable format.
ã Data manipu...
... typical ODBC support in addition to the ability to use these functions to
access certain databases that have based their own API on the already existing
ODBC API. These database servers are listed ... Functions can be
used to interface with the database. This is advantageous in the sense that should
you choose to use any other ODBC database (or other database listed above), you
alre...
... for a
storage media would be a database, since this also facilitates useful features such
as searching and ordering data. I’ll use a MySQL database to store the address
information. The table ... stored in a database and is used as the key for retrieving any information
stored in the database that is mapped to this UIN. Of course, it is not mandatory
that the cookie is used to s...
... parts of that document should
be formatted. For example, you may want a particular word to be boldfaced and
another italicized. You may wish to use a particular font for one paragraph and a
larger ... 10:25 AM Page 373
function defaultHandler(int parser, string data) {
…
}
The input parameter parser refers to the XML parser handler, and data to the
character data that will be h...
... represents portable code
that can be reused to create a different animation without any change to
the game canvas.
import javax.microedition.lcdui.Image;
import javax.microedition.lcdui.game.Sprite;
public ... STARTED
import javax.microedition.lcdui.*;
public class MyPauseCanvas extends Canvas {
private Font font = Font.getFont(Font.FACE_PROPORTIONAL,
Font.STYLE_BOLD, Font.SIZE_LARGE);...
... 5000 (at least 9000 with PersonalJava on the 921 0).
For PersonalJava, the Java stack used to push Java method call frames
is set by default to about 400 KB. If you need a greater Java stack
depth, ... sValue is a static and iValue is an
instance variable; both are stored in the heap. value1 and value2 are
local variables, arg1 and arg2 are method arguments, and all four are
s...
... excluding calls to child methods. Figure 7 .9 shows that the most
SYMBIAN AND JAVA 415
JSR 1 79
We’ve touched on Location API for J2ME (JSR 1 79) . The Location APIs will
allow many location-based services ... native applications.
8.7 Java and Digital Rights Management
Increasingly, suppliers of content such as games, videos, audio, other
multimedia material and applications in g...
... structure
under classes/.
446 SPECIFICATIONS OF SYMBIAN OS PHONES
Nokia 921 0i
Java APIs CLDC 1.0
MIDP 1.0
PersonalJava 1.1.1
JavaPhone
OS Version Symbian OS v6.0
UI/Category Series 80
Memory available to user ... interface.
MIDLET CLASSES 433
java. microedition.lcdui.game.Layer An abstract class
representing a visual
element of a game.
java. microedition.lcdui.game.
L...