Tutorial and sample codes to calculate the distance between two locations. Free sample source codes in PHP, ASP, ColdFusion, C/C++, C#, Java, Perl, Visual Basic and Javascript. Longitude and latitude for United States ZIP Code and Canadian Postal Code are available in database subscription.

Not only is logging an important element in development and testing cycles -- providing crucial debugging information -- it is also useful for detecting bugs once a system has been deployed in a production environment, providing precise context information to fix them. In this article, Ruth Zamorano and Rafael Luque, cofounders of Orange Soft, a Spain-based software company specializing in object-oriented technologies, server-side Java platform, and Web content accessibility, explain how to use the extension ability of log4j to enable your distributed Java applications to be monitored by instant messaging (IM).

Application Tools for Extension Services consist of WebSphere® Studio-based tools that support the development of Web applications targeted for the Extension Services for WebSphere Everyplace (ESWE) platform. These tools are based on the existing WebSphere Studio J2EE development tools and they are part of an emerging suite of tools for the ESWE platform.

Solution Enabler is a framework for creating and deploying solutions locally or to remote machines with different operating systems. The framework helps to simplify the creation and deployment of software solutions by capturing detailed knowledge of a solution package deployed through a common installer.

JAR Class Finder is a WSAD/Eclipse plug-in utility for finding JAR files containing a given class for the Java build path of a project and for helping to fix NoClassDefFound exceptions. This utility helps users to quickly and easily resolve ClassDefNotFound exceptions, which commonly occur during run time. It can also be used to avoid getting such errors if used before run time.

Jikes Bytecode Toolkit is a 100% Java class library that enables Java programs to create, read, and write binary Java class files and to query and update a single, high-level representation of the collection of them, including relationships among them. These features allow the development of tools that report on what APIs the classes use, reorder and change instructions, merge or extend classes, add customized instrumentation (similar to profilers), analyze control and data flow, etc.

JSR-109 facilitates the building of interoperable Web services in the Java 2 Platform, Enterprise Edition (J2EE) environment. It standardizes the deployment of Web services in a J2EE container. This article discusses the server and client programming models defined by JSR-109 and provides code examples.

Web Services for DB2 Cube Views provide access to multidimensional data stored in DB2. These Web services allow a client application to read data from the cubes and perform basic online analysis on multidimensional data and metadata through the Web, using XPath and XML.

Data Wizard for Java is a tool for building a simple graphical user interface (GUI) that makes it easy to collect necessary data. This tool enables the building of data wizard applications using only a scripting scenario in an XML format. Data Wizard for Java can help to produce a GUI by using a simple script to describe the necessary input parameters and the required tools or utilities to be called.

JSP technology is well-known, supported by most application servers, and endorsed by the J2EE Blueprints. Why would you choose otherwise? In this first of a two-part series, learn about the Tea template language and how Tea can be a viable alternative to JSP technology.