Formal proofs of distributed algorithms are long, hard and tedious. We propose a general approach, based on the Event-B formal method, to automatically generate correct programs of distributed algorithms. Our approach is implemented with a translation tool, called B2Visidia, that generates Java code from an Event-B specification related to distributed algorithms. The resulting code can be executed on classical distributed computing systems. To execute the resulting programs, we use a tool called Visidia that can be used for experimenting, testing and visualising programs of distributed algorithms.