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lot of ugly things can happen in the early morning hours when you are frantically trying to meet a deadline. For example, your mind can falter for a split second
hough there were no big surprises and no major announcements, VSLive! San Francisco was notable this year for several reasons. First, despite the dismal economy, the conference was full, showing
uch of the buzz surrounding the release of SQL Server Yukon seems to be about its new integration with the CLR. However, there are plenty of other worthwhile features in
Sometimes you need to know if is a specific instance of an object, is the one you’re looking for.objptr() provides a nice VB-ish way to compre object pointers. So, you
ecently my company, Desaware, decided to release the source code for our component products?and in doing so found ourselves suddenly directly involved in the open source vs. closed source debate.
JDK 1.3 introduced the addShutdownHook() method to the java.lang.Runtime class. Implementing a shutdown hook is useful if you need to take some action right before your app stops running. To
ometimes, deciding on a color scheme for a site is more of a problem than is implementing it. I’ve sat on committees intended to design Web sites by consensus and
hese days, using sophisticated application frameworks to build your network server applications is understandable, but sometimes such frameworks are overkill. When you strip networking down to its bare essentials, network
e’re all familiar with commerce sites that help users find the nearest store location to a specific ZIP code. Our browsers routinely cough up maps and driving directions to business
ver heard this story? Developer meets company, company meets developer, they fall in love. Together, they develop a ColdFusion application of great beauty, bound to last forever. But soon developer
p until now, the heart of a Web page was HTML, but that’s changing; HTML is simply not flexible enough to meet modern Web development needs. The element, for example,
f complexity truly breeds insecurity, your perimeter security can’t be trusted to only the traditional defenses of firewalls and intrusion detection systems (IDS) anymore. Web services, network interconnectedness, wireless connectivity,
The following is a powerful UNIX command that searches for files or folder names containing a particular pattern:1 $>grep -l “main(String” `find . -name *.java -print` This particular code will
There are times you don’t want your output to be cached on browsers. For instance, when a user is viewing their account balance, you want the data to be retrieved
The failure to deallocate previously allocated memory is known as a memory leak. A memory leak is one of those hard to detect bugs, and it may cause unpredictable behavior
Naming variables has a major effect on how hard it will be for a person to follow the code, whether it is the same person who wrote it or someone
Here’s an example: Code For Balance Class——————————————————————————–// Demo class for User-Defined Exceptions To Ensure The// Validity of Data Contained In A Classimport java.io.*;public class Balance{ int bal; public Balance(){ }
This small routine creates a link from all the tables of one .mdb file to another. First, you need to select reference ‘Microsoft ADOX’, your available version. Private Sub CreateLinkTables()
n the first part of this article series, you saw how to expose data via an ASP.NET Web service, in an XML format useful for all kinds of clients. By
ave you ever found yourself in the following scenario: You’ve created server-side Java applications for a production environment.You write a program that allocates external resources: connections to a database using
uring the past decade, I’ve witnessed remarkable change in the software industry’s overall approach to persistence. Though measuring Plain Old Java Object (POJO) solutions in terms of market share is
hen you write distributed programs with RMI, you want to restrict theactions performed by remotely loaded classes. Otherwise, you mayinadvertently allow unsecure code to access private systemresources. You can secure
Bulk I/O is a strenuous operation in terms of performance and resource allocation. For example, say you need to debug a container and wish to dump its content to cout
hen it comes to app server platforms, people can?and do?debate endlessly about which is the best for running enterprise-class applications. Is it the Microsoft .NET platform? Or one of many
he Web browser/Web server combination used today was originally designed to deliver HTML, which implicitly contains display information as well as data. But this doesn’t mean that the Web server
There are two methods to send info and get a response via HTTP. The second (alternate) method works for both .NET and VB6, but it requires DLL reference (take your
When you compile a program the compiler first uses a preprocessor to analyze the code. The #define directive can be used to either define a constant number or function or
The following code prints out an error report to NotePad. Private sub cmdPrintError_Click Dim curDB As Database Dim rs As Recordset Dim lSQL As String Dim retVal As Variant Open
Use this code to obtain the rowcount in JDBC without looping through the resultset. try { // Create a scrollable result set. stmt = conn.createStatement( ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); // Set a
Oftentimes, when I’m creating stored procedures, I forget to grant execute permissions to my user(s). Here is a stored procedure that will do this for you by simply passing in
