Today I took a light rail with my son, to bring him to school. That tram is 90 years old. It has been maintained for 90 years. Milan city sold some of them to San Francisco too.

Because of the success of my article on java closure, I have decided to write another article on functional programming.

How many times have you read or written the same two or three lines of code that frequently seem to go together, and even though they operate on different objects, feel like the same thing? And how often these repetitions involve some sort of collections iteration or more generically manipulation? These repetitions in the code is something that developers eventually learn to filter out and ignore when reading code, once they figure out where the interesting parts are placed. But even if the developers get used to it, it slows them down. Code like that is clearly written for computers to execute, not for developers to read.

lambdaj is designed to easily manipulate collections. Its features are intended to filter, convert, index and aggregate the items of a collection without explicitly iterate on it.

After the success of Closure in Java we like to show you a good example in C# too.

After reading an interesting article on Erlang  and Java interoperability, I have decided to dedicate my spare time to Erlang.

O’Reilly has just published a wonderful book on Erlang, so I decided to dive into it.