Equipped with functional interfaces, lambda expressions, and the best practices of a lambda-friendly API design, we can substantially improve our speed-calculating application by making its design more flexible and user-friendly. Let's set up some background as close to a real-life problem as possible without making it too complex.
Driverless cars are in the news these days, and there is good reason to believe it is going be this way for quite some time. One of the tasks in this domain is the analysis and modeling of the traffic flow in an urban area based on real data. A lot of such data already exists and will continue to be collected in future. Let's assume that we have access to such a database by date, time, and geographical ...
