Krishna Srinivasan’s Blog

You’ve seen these tech logos everywhere, but have you ever wondered how they came to be? Did you know that Apple’s original logo was Isaac Newton under an apple tree? Or that Nokia’s original logo was a fish?

Let’s take a look at the origin of tech companies’ logos and how they evolved over time:

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Web servers are hosts that deliver files to applications or web pages to browsers via the HTTP protocol. The interaction of the web server with the browser is termed as host-client relationship. If the web server is used only to host a single site it is called a dedicated server. Dedicated servers are used for hosting big websites which handle a large amount of traffic.More>>

Server Side Includes (SSI) directives are a type of HTML comment that instructs the web server to generate data dynamically for the web page or the client when it is requested. SSI directive is an effective method in case of adding small amount of dynamic contents to HTML pages.More>>

Apache web server is an open source web server that can be freely downloaded from http://httpd.apache.org/download.cgi . A web server is a program that delivers files to the application or web pages to the browsers via HTTP protocol.

PHP, an acronym for PHP: Hypertext Preprocessor, is a open source server-side scripting language that is designed for creating dynamic web pages. It can be freely downloaded from http://www.php.net/downloads.php. read full article

This article introduces about the various Core Tags that are available in JSF. Tags represent some set of Actions that will be executed in the Server. This article assumes the reader to have a fair bit of knowlege in Java Server Faces. If not, then they can visit the Introductory Article in JSF in javabeat. For more information and resources about Java Server Faces, readers can also Jsf Articles Page visit here. This article will start off with the Major Classification of Core JSF Tags and then will explain in depth about the various different types of Tags that are available in each category. Wherever and whenever possible, Code Snippets are given to make the understanding of the Tags much clearer.read full article

Ajax or Asynchronous JavaScript and XML was introduced by Jesse James Garrett in 2005. He is called the “Father of Ajax” .Ajax is a collection of concepts and technologies that allows richer and more interactive user interaction with the web applications. The Ajax engine allows the user’s interaction with the application to happen asynchronously — independent of communication with the server. So the user is never staring at a blank browser window and an hourglass icon, waiting around for the server to do something.read full article

This article provides an introduction to Struts 2.0 and its new Validation Features. Since Struts 2.0 is new, the first few sections of the article discusses in brief about the basics of Struts 2.0, its architecture and its various New Features. The rest of the article is dedicated towards explaining about the new Validation Features available. Struts is an Open-Source Web Application Framework that simplifies the creation of a Java Web Application. It is based on the Model-View-Controller 2 (MVC 2) Architecture which was originally found in a language called SmallTalk. The recent version of Struts is Struts 2.0 and it has borrowed most of the concepts in terms of architecture and functionality from two frameworks namely WebWork and XWork.read full article>>

Java Server Faces (JSF) simplifies the development of User Interfaces in a typical Web application. It provides a Component-based Pluggable Architecture for developing and representing User Interface Components. Also bundled with JSF is a whole set of various new features like Event Handling Mechanism, Page Navigation, Input Validation and Conversion. This article provides an overview about JSF Framework and the various core elements that form the basis for a JSF Framework. It then provides a detailed overview about the various phases in the JSF Request Processing Life-cycle. Explained further is the structure of the JSF Configuration File. And finally the article is concluded by providing a sample application that demonstrates the various new features.read full article