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I want to create a program that connects to an online server for data exchange, basically it will have the main program for the user to interact with and the online part to do most of the work. I prefer to do the offline part in c++ (with secondary options java and possibly python). My question is about the online part, the only thing that I know is to create a server with the same language as the offline part, have it running somewhere online and make the offline part connect with it. Is that a correct way or am I looking at this very wrong? Is there a better way?