Socket client, wirte and read

How a Java Socket write and read?

echoSocket = new Socket("taranis", 7);
out = new PrintWriter(echoSocket.getOutputStream(), true);
in = new BufferedReader(new InputStreamReader(
                            echoSocket.getInputStream()));

The second statement gets the socket's output stream and opens a PrintWriter on it. Similarly, the third statement gets the socket's input stream and opens a BufferedReader on it. The example uses readers and writers so that it can write Unicode characters over the socket.

To send data through the socket to the server, EchoClient simply needs to write to the PrintWriter. To get the server's response, EchoClient reads from the BufferedReader. The rest of the program achieves this.