Coder Eye

You can write your own code to validate email, but why bother if you have it ready. The Apache Commons project has a sub project called: Co...

This question should be asked more precisely: How can array of size N filled with numbers up to N (0 to N – 1) be scanned for duplicate valu...

This question verifies that you know how the “contains” method of List works. Let’s have a look at this small piece of code: Person perso...

Frankly, I think it is quite an idiotic question. Not because it is too easy or too hard question, but because I think this question doesn’t...

Excel Pivot Table is a great tool for viewing and aggregating data. The data shown in a Pivot Table is taken from some range in one of the s...

Seam is a great framework for easily building Internet applications in Java. It integrates with lots of well known existing java technologi...

I had a problem for quite some time on a web site being shown corrupted in Google Chrome . On the original HTML page everything was working ...

ImageMagik is a great open source tool that allows many conversions and manipulations of images. It supports huge amount of image types and...

There are times we have a class, we would like to fill with data according the data returned from a query. The class is a simple POJO and no...

Calculating the distance between 2 ips can be done easily by using the great geo service: Maxmind . Maxmind is an affordable geo service ...