How can 2 local Java applications interact?
<p>Having 2 bare console Java applications running on the same machine at the same time I want to have, for example, something like a <code>friend.println(String s)</code> im my first app causing the second app to output <code>s</code> to its stdout (while there is to be silence in the first app stdout).</p>

<p>How to implement this?</p>
