Run external program concurrently and communicate with it through stdin / stdout

Question

I want to be able to run an external program concurrently with my Java code, i.e. I want to start the program, then return control to the calling method while keeping the ex

Answer 1

YOu can launch the external app with Runtime.getRuntime().exec(...)

To send data to the external program, you can either send data on the Processes output stream (You get a Process object back from exec) or you can open sockets and communicate that way.