ecause the scientific and engineering numeric floating-point calculation approximates real arithmetic, the precision of this format can create situations wherein your floating-point operations results are not acceptable in some domains.
orting C code to C++ is no big deal: change the source file’s extension from .c to .cpp and recompile. By contrast, porting C++ source code and binaries to C
ervice orientation is sweeping through modern enterprise environments like the Black Plague swept through Europe (hopefully the parallels end there). At the same time, enterprises seem increasingly interested in supporting
bot is a computer program that surfs the web in much the same way as a human user; however, bots are automated. A bot can access a large number of
ava programmers who want to develop semantic web applications have a growing range of tools and libraries to choose from. One such tool, the Jena platform, is an open source
CF is one of the exciting new capabilities in the .NET 3.0 Framework. It provides a unified and uniform programming model for building distributed applications. Those who previously built multiple
lmost any application you write that accepts input requires some sort of validation to meet the business requirements. One example is when you need to validate user-entered or externally acquired
elp is one of the most overlooked aspects of Windows development. Ask yourself this: for the last application that you finished and rolled out, how much effort did you put
he Resource Description Framework (RDF) and Web Ontology Language (OWL) are important technologies driving development on the road to the semantic web. The former is a set of World Wide
First introduced in Oracle 9i, ANYDATA is a “self-describing data instance type” which means it not only holds the value, but it also holds its own data type within each
When you’re working with JDBC, you can load more than one JDBC driver in memory. To find out how many drivers are in memory, along with other useful driver information,
Use this Boolean function to determine whether a URL is valid: public static bool checkUrl(string url) { bool rt = false; if (url.StartsWith(“www.”)) { url = “http://” + url; }
n important principal of software design is that of “least privilege.” Basically, in any given layer of a program, you should grant only minimal access such that the code has
MS messaging is one of the most popular means of communication means in this new digital age. While SMS is best suited for asynchronous communications, it’s recently being increasingly used
uppose you and your swashbuckling buccaneer friends attack a Spanish galleon. When the smoke clears you find that you have emerged victorious but now you must begin the more difficult
You may need to use ORDER to force sequence numbers to be output in the order of request when you’re using them for timestamping. Most of the time, your sequence
n a previous article I showed you how to leverage Semantic Web technology to create a relatively sophisticated sommelier application that recommended wines based on an understanding of wine styles.
Before using savepoints in your application, you need to be sure that your RDBMS supports this facility. To do this, call the DatabaseMetaData.supportsSavepoints method, like this: Connection conn=null;DatabaseMetaData dmd=null;…try{ dmd=conn.getMetaData();
To save a URL as an MHT file (Microsoft “Multipurpose Internet Mail Extension HTML”?a Web Archive File), reference the Microsoft ActiveX Data Objects 2.7 and Microsoft CDO libraries and use
ompared to classic ASP, ASP.NET makes a big leap forward in bringing you the advantages of object-oriented programming. However, some aspects like the SQL and .NET data type mismatch, lack
he semantic web, or what is often called Web 3.0, is a collection of technologies that associate meaning with individual data elements that are usually embedded in XHTML files. Having
ith the visual designer of Visual Studio 2005 it’s simple and straightforward to stir together a database connection, a SQL query, and a DataGridView control to get a Windows WYSIWYG
he first article in this series showed how to create custom configuration sections in your ASP.NET application configuration file, while the second article demonstrated using Windows Group Policy at both
indows services are applications that run in the background without the need for a user interface. If you?re using Windows, you should not be new to Windows services. The Themes
“The business market for this integration of data and programs is huge…. The companies who choose to start exploiting semantic web technologies will be the first to reap the rewards.”
he technologies of Message Transmission Optimization Mechanism (MTOM) and XML-Binary Optimized Packaging (XOP) are concerned with the fundamental issue of binary data transmission, which is of great importance to web
ost developers understand the value of the layered approach to architecture. The main principle behind layered architectures is that of “separation of responsibility”. Each layer is responsible for a finite
rrors and exceptionsare two similar notions that differ in one crucial aspect: exceptions are a runtime concept, whereas errors are anomalous conditions that can and should be detected as early
n Article 1 of this series, you saw how to create a custom configuration section in a Web.config file and access it using a custom provider. That solves the problem
As you know, the EJB container offers strong support for “save/load” the state of a stateful bean. The problem arises when you have to deal with nonserializable objects like open