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The Latest

Async-Up Your Objects

art of good component writing involves designing and developing components with the idea that developers other than you will use them. A good practice is to use conventions that are

A Practical Guide for Integrating EJB and Struts

ou’ll find plenty written about building and deploying EJB, and perhaps equally as much about building applications with the Struts framework. But what about leveraging EJB and Struts together? This

Prefer Templates to Macros

Because macros do not behave as function calls but merely as text substitutions, they might exhibit strange behaviors during complex calls. For instance: #define mul (t) t*t*tmul(3+3) gives 24 though

Create Rollover Graphics in ASPX Pages

Although this tip creates onmouseover and onmouseout attributes in the IMG tag within the A tag when rendered to the browser, it could be used to set any attributes. Create

Import Web Content into Your Excel Workbook

Importing Web content into your Excel workbook is simple using Micorosoft’s WinHTTP tools (they are free and included with IE). First, create and save an Excel Workbook. Next, access the

Suffering from Spam?

One of the major ways that spammers get email addresses is by crawling Web pages and extracting any email addresses they find. As part of your own Web site development,

Add Flash to Your .NET WinForms to Create Skinable UIs

ithin the last few years, Macromedia’s Flash has become a leading development environment for online vector animation, Web site production, and rich Internet applications?as well as for offline presentations, small

Unheralded Java Filters Simplify Web-app Testing

ava filters, first introduced in the Java Servlet specification 2.3, are a powerful addition to any Java Web application toolkit, yet they probably are the most under-used and under-appreciated of

Mixing JSTL and JSF in Web Applications

avaServer Pages Standard Tag Library (JSTL) is a library of standard tags that you can place on JavaServer Pages (JSP). The tags encapsulate functionality commonly used in Web applications. JSTL

Preserve Code Safety with Conversion Operators

ertain objects must be converted to a low-level representation and vice versa. Programmers using std::string objects, for instance, have to convert them to bare char pointers, as in the following

Named Parameters in C++

Named parameters allow you to send function arguments in any sequence. This is very useful when your functions have long parameter lists. Named parameters are not supported in C++, but

Develop a Reusable Image Cache in JavaScript

cripting a browser’s Document Object Model may be easy these days, but while the DOM is highly functional in some areas, it remains distinctly inflexible in others. Asynchronous operations like

Smarten Up Your DataSets with XML Schema

ou might as well face it; your data model is going to change. You can whine about it. You can fight with the DBA and the requirements team. Or you

Control Transaction Boundaries Between Layers

hen developing a software solution on a three-layered architecture, an inevitable mismatch emerges between business transactions and system transactions. Business transactions stem from application requirements, and they are defined at

Build a Property Editor That Can Edit Any .NET Type

he .NET framework offers a large set of controls for people who are creating Windows Forms applications: the TextField control for editing text, the CheckBox for Boolean values, the ComboBox

Return the Absolute File Path of a Class

This code retrieves the local absolute path of the class file containing the specified class name, as prescribed by the current classpath. import java.net.URL;public class FilePath { public static String

Determine Whether a Combobox Is Being Loaded

Say you have a combobox being loaded at form initialization from a database and you have code in the combobox’s SelectedIndexChanged event. This may cause unwanted exceptions: Private Sub LoadComboBox()

Exploring the J2ME Mobile Media APIs

s J2ME gains prominence, the range of things that developers can do with Java on devices is expanding. This month I’ll cover the Mobile Media API (JSR-135), which is an

Master JMS Messaging with OpenJMS

rganizations are increasingly demanding applications where communication between software components is loosely coupled and often asynchronous. In asynchronous communication, an application sends a message, and then continues program execution without