background preloader

Java

Facebook Twitter

Tutorial, Introduction to XML and XML with Xerces for Java (updated for jdk 1.5 and xerces 2.7.1) If you are looking for sample programs to parse a XML file using DOM/SAX parser or looking for a program to generate a XML file please proceed directly to programs.

Tutorial, Introduction to XML and XML with Xerces for Java (updated for jdk 1.5 and xerces 2.7.1)

This small tutorial introduces you to the basic concepts of XML and using Xerces parser for Java to generate and parse XML. The intended audience are XML beginners with knowledge of Java. Last updated: 03 Oct 2005.Modified programs runs in JDK 1.3, JDK 1.4 and JDK 1.5. Xerces parser is used with JDK 1.4 and 1.3. This is a gentle introduction to XML and using XML with Java. Extensible Markup Language XML is text based markup language. In HTML For example <b>Seagull<b><i>3674<i><i> 34 </i>could mean anything In XML we represent it as. <Personnel> <Employee> <Name>Seagull</Name> < ID> 3674 </ID> <Age>34</Age> </Employee></Personnel> And this clearly expresses Seagull is an employee name his ID is 3674 and his age is 34.

HTML has limited set of Tags But XML can be extended (i.e we can create our own tags ) Here are a few advantages. <? Developing A Simple Pluggable Java Application. Most of the applications we use on daily basis are pluggable.

Developing A Simple Pluggable Java Application

Popular applications like Firefox, Eclipse, NetBeans, JEdit, WordPress, Hudson are all pluggable. In fact, pluggability has played a major part in the success of most of these applications. Why not make the Java applications we develop pluggable as well? Yes, we get pluggability out of the box, if our applications are based on a rich client platform like NetBeans or Eclipse. But for some reasons if you decide not to use those platforms, it doesn’t mean that they should not be pluggable. The APIFirst, let us define a plugin interface that should be implemented by all the plugins of our application. The Plugins Writing the plugins now is very easy. Now create a directory called “META-INF/services” inside the source directory and create a file with the name “com.pluggableapp.plugins.api.ApplicationPlugin” (This is the fully qualified name of the plugin interface).

Repeat these steps to create PluginB. The Application That’s it. Java programming source code. Coding Patterns. Version 7 Joseph Bergin Pace Universityjbergin@pace.

Coding Patterns

Introduction Beginners who are learning programming make many mistakes. This is because they have little experience and don't always get good guidance. If they look at a lot of programs we hope they will emulate the style, but they don't always do this, and they don't always see programs that should be emulated in any case. Some of the patterns have been written for this paper. Near the end we tell a story that can help you use these together. The Principles There are a number of reasons for the rules which follow. The first is that our programs must be readable by people. The second principle is that our programs must be maintainable. Additionally, programs must be reliable. There are other considerations such as overall performance of a system and the cost effectiveness of our solutions.

A Note on the Form In this paper we use a form called modified Alexandrian form. Finally, the patterns are marked with 0-2 asterisks. The Patterns. Java Blog Archive.