Since 1998, DevX has helped people start businesses, build websites, and provide enterprise technology to people globally. Interviewing the likes of Microsoft’s co-founder, Steve Ballmer, the publication brings comprehensive, reliable, and accessible insights to the Internet.
large number of developers (and managers) have heard of service-oriented architecture (SOA) and are familiar with the idea in principle, but have no idea about how to go about applying
n the early 1990s, 64-bit systems were considered “a solution waiting for a problem.” In 2005, however, this technology is rapidly gaining a critical mass of users. Even if you’re
he latest version of Java, J2SE 5.0 (version 1.5 of the JDK) is the first to deliver the concept of disconnected RowSet objects to the Java language. The FilteredRowset interface
ne unfortunate by-product of the rapid move away from standalone and client/server applications to the Web-based environment is the disconnected nature of the HTTP protocol. Web servers and clients briefly
urlingame, Calif.?The support that Eclipse has gained from tools vendors such as BEA and Borland indicates how established the integrated development environment (IDE) has become since IBM developed and then
he Common Dialog API has been a solid staple in Windows development for more than a decade. In fact, not only is it a useful source of reusable code, it
Ever created a bunch of stored procedures for testing purposes and went to drop them but couldn’t remember all the names you created? A way to avoid this is to
enableviewstate is a page-level session mechanism used to maintain the state of the controls between page requests. It uses the hidden variable __VIEWSTATE. enableviewstate is set to true for all
his article explores the design of a GUI spreadsheet, called Nano-Sheets. In its most basic form, the code for Nano-Sheets requires fewer than 1,500 bytes of code, which prints easily
Suppose the user has to enter his name in a field. He forgets. Your Java code throws a NullPointerException. This is probably meaningless to the end user and encompasses a
The timeout option was supported in the previous versions of the JDK through the
Applications often present a way to allow users to select a number of values. These values are then assembled in an IN() clause that contains a list of values to
Ever need to use the same member function from a inheritance hierarchy as both virtual and non-virtual? This code shows you how to do it dynamically, using a template. Suppose
ust about every time you write any kind of application that renders data in a table-like manner in HTML or in any of the myriad of Java table controls, the
number of technologies of interest to developers are incubating in Redmond right now. It’s been a long time since we first caught wind of “Whidbey” and we’ve got a good
f you worked with thread programming in C or C++ or prior versions of Java, you know what a headache managing the threads in your code can be. In single-threaded
This tip will show you how to connect to SQL Server using ADODB Retrieving Records using Record Set and connecting it to Crystal Reports. Follow these steps before adding the
Text fields need special treatment in SQL. Here’s how to add two text fields: CREATE TABLE Foo (a int, b text)–Table Foo has b as text data type.INSERT INTO Foo
When a user visits a Web site for the first time, the site creates a unique ID, known as a Session ID. The Session ID is unique for that current
The Servlet API provides the class javax.servlet.ServletContext, which has methods that work with data stored in context. Any servlet can store Java objects in that context and other servlets can
he concept of time travel has been a staple of science fiction since the entertainment genre was invented. Whether it’s H.G. Wells’ “The Time Machine,” Doc Brown’s DeLorean in “Back
If you provide std::cin.getline() with a third argument?a “stop” character, it ends its input by eating the character and terminating the string. For example: std::cin.getline(str, 100, ‘|’) Without this this
here are many Java user interface toolkits. The most common, of course, are AWT and Swing, each of which has its advantages and drawbacks. Swing in particular, while it looks
ulti threading is one of the most powerful concepts in programming. Using multithreading, you can break a complex task into multiple threads that execute independently of one another. One particularly
Java programmer seems to live in two worlds. One is the object-oriented world of classes, interfaces, methods, accessibility, and more advanced notions such as patterns, refactorings, aspects, and concerns. The
ocoon is a powerful tool for publishing content to multiple formats from XML. This second article of a two-part series describes how to integrate Cocoon with Lucene, a full text
n Part 2 we looked at associations, which are nothing more than references, but they can be directional and represent multiplicity. If we were restricted to our ability to generate
This query: select @@version provides the following information: Version installed Service Pack installed Edition installed Here’s a sample of the output: Microsoft SQL Server 2000 – 8.00.194 (Intel X86) Aug
Servlets can be configured using the initialization parameter. These parameters can be anything like username, password, URL, etc for accessing a database connection, the location of the configuration file, etc.
Validator controls automatically trigger validation checks for every postback?irrespective of whether you need validation or not. To prevent this, set CausesValidation=”False” for the control for which you do not need
