My Experience Teaching in India EXPR
During the last 6 months I have been to India twice. It was for the purpose of teaching android courses. In both visits, I taught young software developers who work for a big amarican company that holds R&D department in Pune (India). I chose to write this post in order to share my experience with […]
Associated Press HTML 5 Innovative Web Site INFO
If you haven’t seen that already, try to browse at http://html5.labs.ap.org/ and enjoy the innovative web interface developed using HTML 5 by Associated Press. The entier web interface in this web site was developed using HTML 5, JavaScript and CSS3. Has anyone said Silverlight? Flash? JavaFX? The meaning is that we can browse it using any […]
Facebook Users Authentication PRO
I am currently working on a detailed course that covers the Facebook Graph API. The commercial professional version will be available at www.xperato.com. The free community version (for personal usage) will be availble at www.abelski.com. Many of the Facebook Graph queries can be completed using an authentication token. In order to get an authentication we first need […]
Facebook Graph Objects Introspection PRO
We can easily get information about the other objects each object on the facebook graph is connected with. Trying to request a URL address with the following pattern filling in the unique ID (of the object we are interested at) will return a JSON file with detailed information about all objects that object (the one […]
Tuples in C# PRO
Tuples were introduced in .NET 4.0. While arrays hold objects of the same type, tuples can hold objects of different types. The eight different generic Tuple classes are available for the purposes of having tuples with diferent number of types. Once a tuple was created the type of its fields cannot be changed. In a […]
The ArraySegment Struct PRO
The ArraySegment struct assists us when working with segments of arrays. Instead of handling the offset and the number of elements separately for each segment we can instantiate the ArraySegment struct and get an object that describes a specific segment. The following video clip explains that. More code samples, slides and video clips about this […]
Installing Tomcat on Your PC PRO</font
I am writing this post for the benefit of my new Java EE students who have no experience with downloading and installing the Tomcat web container. The following video clip includes the detailed instructions you need to follow in order to download and install the Tomcat Java Servlets & JSP container. Once you complete the […]
Installing Glassfish on Your PC PRO
I am writing this post for the benefit of my new Java EE students who have no experience with downloading and installing the Glassfish application server. The following video clip includes the detailed instructions you need to follow in order to download and install the Glassfish application server. Once you complete the download you can […]
Installing JDK on Your PC PRO
I am writing this post for the benefit of my new Java students who have no experience with downloading and installing the JDK. The following video clip includes the detailed instructions you need to follow in order to download and install the JDK. In case that you did not succeed to download and install the […]
The C# Pragma Directive PRO
Using the #paragma directive we can supress warning messages for specific code segments. The following short video clip shows that. One of the scenarios in which this directive can be useful is the case of having multiple warning messages. When their number is small it is easy to track. When there are many of them […]