private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    if (evt.getSource() == jButton1) {
        String radiotext = "";
        if (jRadioButton1.isSelected()) {
            radiotext = jRadioButton1.getText();
        }
        if (jRadioButton2.isSelected()) {
            radiotext = jRadioButton2.getText();
        }
        try {
            String OracleThin = "oracle.jdbc.driver.OracleDriver";
            Class.forName(OracleThin);
            Connection con = DriverManager.getConnection("jdbc:oracle:thin:@amrita-pc:1521:XE", "user2", "user2");
            PreparedStatement stat = con.prepareStatement("insert into stu_basic values(stu_basic_sequence,?,?,?,'" + radiotext + "',to_date(?,'yyyy-mm-dd'),?,?,?,?,?)");
            stat.setString(2, .getInt());
            stat.setString(3, fn.getText());
            stat.setString(4, mn.getText());
            stat.setString(5, radiotext);
            stat.setDate(6, dob.getText());
            stat.setString(7, a1.getText());
            stat.setString(8, city.getText());
            stat.setString(9, state.getText());
            stat.setInt(10, phone.getInt());
            stat.setString(11, email.getText());
            stat.executeUpdate();
        } catch (Exception e) {
            System.out.println("" + e);
        }
    }
}