Finding file path on workspace?

I am trying to update a file and deliver this change. I can do it on Eclipse by creating a workspace, writing on a file using FileWriter on java, to which I give the local file path on my Eclipse workspace. I then check in the changes and deliver, and this all works fine.

However, I want to be able to do this on a remote server without Eclipse, just running the java. In this case, I would assume creating a workspace, checking in changes and delivering being the same as on my local system, but I am having trouble finding the correct file path to give to the FileWriter in this situation. I know the file path within the stream, which I have also created the workspace of, however, how do I find the whole file path to give to the FileWriter on this remote system for it to find my file?

file path on local Eclipse: /home/name/workspace/folder/file
file path on server: ???/?mystream?/folder/file