Socket Ping Pong

Client.java

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.net.UnknownHostException;

class App {

    public static final String HOSTNAME = "[HOSTNAME]";
    public static int PORT = 1114;

    public static Socket socket;
    public static OutputStream os;
    public static InputStream is;

    public static void main(String[] args) {
        connect();

        String tInput = "";

        while(!tInput.equals("stop")) {
            System.out.println(receive());
            tInput = getTerminalInput();
            send(tInput);
        }
    }

    public static void connect() {
        try {
            socket = new Socket(HOSTNAME, PORT);
            os = socket.getOutputStream();
            is = socket.getInputStream();
        } catch (UnknownHostException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void send(String message) {
        try {
            BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(os));
            bw.write(message + "\n");
            bw.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static String receive() {
        String data = "";

        try {
            data = new BufferedReader(new InputStreamReader(is)).readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        
        return data;
    }

    public static String getTerminalInput() {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String line;
        try {
            line = reader.readLine();
            return line;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }
}