SSL

public class SSLServer {

    public static void main(String[] args) {
        try {
            int port = 443;
            ServerSocketFactory ssocketFactory = SSLServerSocketFactory.getDefault();
            ServerSocket ssocket = ssocketFactory.createServerSocket(port);

            // Listen for connections
            Socket socket = ssocket.accept();

            // Create streams to securely send and receive data to the client
            InputStream in = socket.getInputStream();
            OutputStream out = socket.getOutputStream();

            // Read from in and write to out...

            // Close the socket
            in.close();
            out.close();
        } catch(IOException e) {
            e.printStackTrace();
        }
    }
}

public class SSLClient {

    public static void main(String[] args) {
        try {
            int port = 443;
            String hostname = "hostname";
            SocketFactory socketFactory = SSLSocketFactory.getDefault();
            Socket socket = socketFactory.createSocket(hostname, port);

            // Create streams to securely send and receive data to the server
            InputStream in = socket.getInputStream();
            OutputStream out = socket.getOutputStream();

            // Read from in and write to out...

            // Close the socket
            in.close();
            out.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}