Grzegorz.buszkiewicz

Sometimes, reading candidates answers is just something that I know is going to piss me off. We have a question that goes something like this (the actual question is much more detailed): We have a 15TB csv file that contains web log, the entries are sorted by date (since this is how they were entered). Find all the log entries within a given date range. You may not read more than 32 MB. A...

Grasp the fundamentals of web application development by building a simple database-backed app from scratch, using HTML, JavaScript, and other open source tools. Through hands-on tutorials, this practical guide shows inexperienced web app developers how to create a user interface, write a server, build client-server communication, and use a cloud-based service to deploy the application.

A file poller is a very useful mechanism to solve common IT problems. Camel’s built-in file component is extremely flexible, and there are many options available for configuration. Let’s cover few common usages here. Polling a Directory for Input Files Here is a typical Camel Route used to poll a directory for input files every second. Preview Text:  ...

Text visualization is an effective way to see and analyze what a designated text is saying. Learn to combine Eclipse and open source text visualization and analytics tools to build a word-wave application that visualizes and compares two texts.

Common complaints about the Java language concern excessive ceremony for simple tasks and defaults that are sometimes confusing. All three of the Java.next languages take more sensible approaches in those areas. This installment of Java.next shows how Groovy, Scala, and Clojure smooth out the Java language's rough edges.