private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                int id = int.Parse(textBox1.Text);
                string nome = textBox2.Text;
                string email = textBox3.Text;
                Responsavel Responsavel = new Responsavel(id, nome, email);

                ResponsavelDAO RespDAO = new ResponsavelDAO();

                RespDAO.Incluir(Responsavel);

                MessageBox.Show("Responsavel cadastrado com sucesso!");

                textBox1.Text= ("");
                textBox2.Text = ("");
                textBox3.Text = ("");

            }
            catch (OracleException ex)
            {
                MessageBox.Show(ex.Message);
            }
        }