Jalal MJADLI

JEE : Java Enterprise Edition (ex J2EE) is a specification of Java Sun technique for enterprise applications. These apllications are designed in a multi-levels approach. To do this, each implementation of this specification contains a set of  Java Standard framework extensions to make easy the creation of distributed applications. Servlet : Component reprensting the C of MVC paradigm Portlet : Web container (extension …

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«volatile» is a keyword used when a variable can be used by many threads. It allows an asynchronous access to this variable. By using this keyword the JVM

static is a keyword used with variables, methods, inner classes and code blocks. If it is used with : Method or variable : that means this method or variable doesn’t belong to a particular instance, it belongs to the class where it is declared. We can use it without creating

Sony officially announced their two new products: the Tablets S1 and S2. These tablets are based on Android3.0 platform (HoneyComp) and the  Tegra 2 processor of Nvidia.

PHP is a language used to create a dynamic page web. It is very simple and it is a powerful language used by a large community on the web. To start with, you need a server that compile and interpret the php script after sending a request by the user (Client), then the server send a response …

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There are 4 types of JDBC drivers: JDBC-ODBC bridge driver : it allows access to DBMS via ODBC.  It is accessible in J2SE platform via sun.jdbc.odbc.JdbcOdbcDriver. Native API partly Java driver : it translates JDBC’s calls to a particular DBMS through a mixture of Java’s API and native API. JDBC-Net pure Java driver : it is known …

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To do this, the simplest way is to use a JDBC driver : Downlaod the integral API from here. Put it in the /lib of your Tomcat installation folder if you want to use it in a web project or any folder accessible in your hard disk Right click on your project in Eclipse > Properties > Java Build Path > Add External …

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Class : is a declaration of common properties of a object’s group. It declares attributes of the objects to represent properties and methods to describe behaviors . Interface: is a contract passed between many classes. In general, it has a name

They are four : Bean : they are useful to define new beans in any scope and from many resources, as well as a tag to render a particular bean or property to the output response. HTML : they are used to create HTML form, and to create a HTML code based user interfaces. Logic …

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Candian researchers from Queen University developped a prototype of what they call a Snaplet. The Snaplet is a flexible phone that’s created on a flexible electronic platform. It offers many functions accessible by a simple menu. To access to these functions you can touch by your finger or a pen.

One of the useful solutions is to use the JAX-WS API. To do this, I suppose that you have: IDE: Eclipse JDK: 6 Tomcat 6 installed and configured to run under Eclipse, if it’s not the case, don’t be worry and click here to now how to do this. JAX-WS.jar downloaded in your machine, because …

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Qwiki is a new search engine , it can generate a video with voice to give information about the topic written in its topic search field. It exploits the content of Wikipedia to

The source problem was a hidden file found in the device that records the position of users. Using a software application, a map of movements can be generated. The file doesn’t have any impact if the localisation services settings are disabled. This was discovered by

Google reveals its new OS web-based applications. It is a new approach exploiting web capabilities to use digital word. Google has developed a new OS that can be a real revolution of the web. In this model, user doesn’t need applications on his PC to work, he needs just a laptop equipped by a Chromebooks

To make a connection with a mySql database : Use wamp server, to download it click here. Install it. Start it, left click on the icon in the task bar ( I say left click )   PHP > PHP Extensions > select php_mssql In your php page or classe use this code :// sqlServer …

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Download a new version server from here. Unzip the package where you like, it is recommended to use a folder name without spaces (e.g. C:/Servers). This folder will be the $CATALINA_HOME In $CATALINA_HOME /bin, there are two files to start and shutdown the server : startup.bat to start server in Windows OS (startup.sh for Linux) …

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Polymorphism : it means that an entity can be used under many forms. For example, if we have a method called method(), the polymorphism allows to use it with another implementation like : method(p1) or , method(p1, p2) or any other form using the same name method. This can be helpful for an developer, because he shouldn’t …

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The software’s giant bought the phenomenal web company  Skype for $8.5bn. Microsoft acquired Skype Communications in order to develop the call phone services via internet. Skype has around 663 million users of its service,

Servlet : it is a Java class allowing to create data dynamically in an HTTP server. Data created can be presented under HTML format, XML format or any other supported browser format. Servlet runs dynamically in the server and extends their functions : database access, e-commerce transactions… Servlet is loaded automatically in the server and stay active waiting …

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They are the three keywords used to define the scope of a class or method or a variable in Java. They are called access modifiers. In fact, they are four, the fourth one is «nothing» (empty, no modifier) and it is different to public. public : class or method or variable using this