private final String bancodedados;
    private final String host;
    private final String porta;
    private final String senha;
    private final String usuario;

    public MySQL(String db, String host, String port, String pw, String user) {
        this.bancodedados = db;
        this.host = host;
        this.porta = port;
        this.senha = pw;
        this.usuario = user;
    }

    public synchronized Connection conectar() {

        try {
            Class.forName("com.mysql.jdbc.Driver");
            return DriverManager.getConnection("jdbc:mysql://" + host + ":" + porta + "/" + bancodedados, usuario, senha);
        } catch (SQLException | ClassNotFoundException e) {
            e.printStackTrace();
            return null;
        }

    }

    public synchronized void execute(String query) {
    	Connection con = conectar();
        try {
            con.prepareStatement(query).executeUpdate();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                con.close();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }

    }

    public synchronized ResultSet getQueryResult(String query) {
        Connection con = conectar();
        try {
            return con.prepareStatement(query).executeQuery();
        } catch (SQLException e) {
            e.printStackTrace();
            return null;
        }

    }