Coder Eye

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 ...

Simply getting the IP of the remote client in Java is an easy task. Assuming we have a request instance, we can simply invoke the “getRemote...

Sometime we need to check if a given IP belongs to a private network. IP of a private network belong to a special range of IPs. It is most l...

JSF has a pretty comprehensive support for validations, but it is lack of a validation for an empty field. The built-in “required” property ...

Tomcat is not only a servlet container. It supports many of the features of any HTTP web server and can be also used to serve static conten...