Writing a URL Shortner in Java Struts2 & Hibernate
This is an attempt to create a simple URL shortner service in pure JEE with Struts2 and Hibernate. Creating Base Framework I always have Basic framework ready which gives a kick start to the...
Understanding Primary Key(PK) Constraint in Oracle
The Primary Key(PK) constraint is the most basic concept of any RDBMS (I am particularly interested in Oracle). Yet, I have noticed people getting confused when it comes to the practical usage and asking...
Generate Pie Chart/Bar Graph in PDF using iText & JFreeChart
iText is a wonderful library if you want to generate PDFs in Java. It comes with a huge set of API to create/manage a PDF file. We already saw in our previous tutorial how...
10 Most Useful Java Best Practice Quotes for Java Developers
Quote 1: Avoid creating unnecessary objects and always prefer to do Lazy Initialization Object creation in Java is one of the most expensive operation in terms of memory utilization and performance impact. It is...
Some Useful Unix File Finding Commands
Following are some bunch of commands that might be useful if you want to find files in unix/linux. Large Files Find files larger than 10MB in the current directory downwards… Find files larger than...
Step by step Guide to Crack WinRAR
Hi folks, its been a long time since I have posted some thing technical, so I will be writing about the challenge I got at NIT KU, where I cracked WinRAR 3.80 using a...
Did Twitter Forget to Update its Copyright Year?
I noticed a strange thing today on Twitter’s homepage. Its already end of the first month of 2010 and Twitter’s homepage is still showing Copyright year 2009!! I don’t know if they have done...
Finally Apple Unveiled its Tablet, The iPad (Video)
After months of speculations and rumors its finally here. Apple has added another weapon in its arsenal, the iPad. In a grand Apple press conference at the Yerba Buena Center for the Arts in...
JavaScript Array Remove an Element
Following is an example of JavaScript where we will remove elements from an array with Index and Value. There are different methods in JavaScript that we can use to remove elements. We will use...
oEmbed: An Open Format Every Developer Should Know About
Most of the internet users spend their online time in creating and sharing content on internet. Sharing has became one of the most popular activity of internet users. This is attributed to formats like...