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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.
At the opening keynote of this week’s Oracle OpenWorld Conference, Sun Chairman and Co-founder Scott McNealy called the father of Java, James Gosling, on stage to again reiterate Oracle’s dedication
Recently, I was trying to create a two-column table with multiple rows. I needed to iterate over a collection object and display its data in a table with two columns,
he previous DevX article “Augmented Reality on Android: Prepping the Camera and Compass” explored how to use the Android SDK’s camera and compass as the first two building blocks of
Here’s the problem: You can’t put objects that don’t implement the Comparable interface inside a Tree(Map/Set); if you do, your code won’t even compile. The underlying cause is simple; TreeMap
hen implementing GridPanels, I typically start by configuring the DataStore. The reason for this is because the configuration of the ColumnModel is directly related to the configuration of the DataStore.
All this information is available in pieces in various places, but perhaps gathering it all together will simplify the process. The following may not be the most elegant solution, but
PF’s XAML language defines the controls that make up a user interface. Typically, some kind of container control such as a Grid or StackPanel fills the window. In turn, that
n my never-ending search for interesting new ideas in the IT world, every now and then I come across something truly innovative and brilliant. Such was the case when I
You should create a Java interface if your needs meet either of the following scenarios: When you need plug-in capabilities to go with an interface option. As an example, consider
Currently, there are no portable C/C++ functions to check for NaN (not a number) and infinity (positive or negative). Unix provides isnan() and isinf(), while Microsoft’s implementation uses _isnan() and
By default, all Spring beans are singletons. If you instead want the Spring container to return a unique bean instance every time you retrieve the bean, then you need to
As of version 3.3.4, the mail system in Bugzilla doesn’t work with SSL/TLS-based SMTP mail servers. The following procedure helps you set up a working Bugzilla configuration that can use
To disable the standard Windows Close, Minimize, and Maximize buttons, simply set the ControlBox property of a Windows Form to False. You can set this either by using the “Window
Passing submitted values from a form on one page to another page for further processing is a common need in web and intranet applications. There are many ways to meet
anual testing is human-present testing. A human tester uses real user data in real user environments to create realistic user scenarios that will cause software either to fail or to
owadays, it is becoming common to find mobile devices equipped with GPS receivers. Using a GPS receiver, you can pinpoint your current location easily via the many satellites orbiting around
Although it’s not considered best practice, after writing a class, sometimes you may decide that all or part of that class might work better as an interface. When that happens,
Most programmers use the String.split(String) method to convert a String to a String array specifying a delimiter. However, I feel it’s unsafe to rely on the split() method in some
To display row numbers in an ASP.NET DataGrid, first create a template column and set its ItemTemplate value using the following code:
This function separates the items in the delimited string (parameter 1) at the delimiter (parameter 2), creates a new generic string list, and then adds each item to the new
A quick example should suffice for defining and executing a Groovy Bean inside a Spring application context. Here’s a short Java interface: package com.springandgroovy; public interface HelloWorldService { String sayHello();
tored procedures and functions are a new feature of MySQL 5.0. A stored procedure is a pre-built procedure containing one or more SQL statements stored in the database server. This
ava Real-Time System (Java RTS) is Sun’s commercial implementation of the Real-Time Specification for Java (RTSJ), which defines real-time as “the ability to reliably and predictably respond to a real-world
hen someone comes over to your cube and starts talking about the latest cool software, the last thing you would expect them to be excited about is a new text
he simplicity of REpresentational State Transfer (REST), an architectural style for accessing information on the web, has made it a popular way for developers to access services. In the REST
f you use MS Access to store and manipulate data, you know that corruption happens. While it may not be an absolute certainly, Access is more susceptible to corruption than
Binding a Visual Studio Solution to code controllers such as Visual SourceSafe (VSS) offers many advantages to develoeprs. However, it is also a pain when you have to distribute such
It’s useful to know how to publish your 32-bit ASP.NET applications to a 64-bit operating system (OS). For example, suppose you want to publish to a Windows Server 2003 64-bit
When building classes in Visual Studio (VS), you can generate property setters and getters quickly by defining a field variable, and then right-clicking on the field and selecting Refactor ?
