java.net.ConnectException: Connection refused TCP

Question

Objective - I want to send the entered text in the java (PC) project to the android app which displays this text.The PC is connected to wifi

Answer 1

There is nothing listening at the IP:port you are trying to connect to.

Your server didn't start, or is listening to a different port, or is bound to 127.0.0.1 instead of 0.0.0.0 or a public IP address.