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Mostly well designed systems usually carry four layers model. Every layer has some specific responsibilities and in good design has less dependence on other layers. Here are these layers with small description, Presentation - This layer is consist of Read More...
PDFBox is an open source project released under the BSD license. It is a pure Java library that supports following important features, Extracting text from PDF document. Encrypt/decrypt any PDF document. Import/export form data Overlay one PDF document Read More...
From Writing Programs to Creating Compilers by Sanjay Dasgupta -- In this article we build a simple compiler that augments Java with tasks (independent blocks of code that execute in parallel), thus creating a new language (called AJ) that supports the Read More...
Finally Tiger is arrived. This is the most significant release of Java after its first release. Some of the interesting details about this release are here . Read More...
Now all big players of database market are facing tough competition from free databases i.e., mySQL etc. IBM has already donated one of their acquired database (Cloudscape) source code to Apache organization and CA has open sourced their Ingres database. Read More...
OK, now it is time for designing domain objects for my current project. I was looking for some guideline. Since right now I don't have enough time therefore I will be OK with following instructions, but I will definitely start reading something specific Read More...
Immutable objects are objects whose state can not be change once they are constructed. What does it mean? It means their properties can not be change. Isn't it strange? Why do you need such type of objects?..Hmmm, you need such objects because those objects, Read More...
One thing I like most about Java is its opennes. You pick one thing in Java and you will see number of options avialable to you for that thing. Those options will have commerical as well as Open Source solutions. So this is the strongest point of Java Read More...
WOW, in my recent project, I have to deal with a very big ANT build file which was very complex and badly writtern. Now beacuse of this tool, I can visualize and understand build files better. Read More...
It is always big pain whenever I need to upgrade my Eclipse. Eclipse is very nice IDE for Java, but without some plugins, it is really difficult for me to use it for any real work. So how can I avoid this? In Eclipse 3 it is very simple (May be it is Read More...