send a message from the server to the Sockets client

Question

I recently started working with sockets this week and am having difficulties. My goal is when the client sends a message the server responded with a notification. On the client side, sending to the server has no problems, but when the server sends to the client, nothing appears. Can someone help me with this problem?

CLIENT:

            socket = new Socket("localhost", 8080);

            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
            out.write(message);
            out.close();
            System.out.println("send to server");

            InputStreamReader in = new InputStreamReader(socket.getInputStream());
            BufferedReader bf = new BufferedReader(in);
            String string = bf.readLine();
            System.out.println("server said :" + string);

SERVER:

    serverSocket = new ServerSocket(8080);
    while(true){
        System.out.println("Accepting...");
        socket = serverSocket.accept();
        System.out.println("Connected...");

        in = new InputStreamReader(socket.getInputStream());
        bf = new BufferedReader(in);

        PrintWriter out = new PrintWriter(socket.getOutputStream());

        messageFromClient = bf.readLine();

        System.out.println("Received: " + messageFromClient);
        message = "welcome";
        System.out.println("Sending...");

        out.write(message);
        out.flush();

        System.out.println("sending done");
    }