Can you explain the java socket program which explains the wait and stop ARQ protocol! Please!

Question

how is the acknowledgement received from the server to the client ?! .
using the Printstream( ) method!

Answer 1

Do you mean something like in this example:
https://www.google.de/amp/s/gangof1994.wordpress.com/2015/08/11/stop-and-wait-protocol-using-socket-program/amp/
Or are you using a framework (Apache)?

Answer 2

yeah, the one in the example is most apt