mysql

    Connection conn = null;
    ResultSet rs = null;
    PreparedStatement pst = null;




public void actionPerformed(ActionEvent e) {
                try {
                String sql = "SELECT * FROM `loginform` where users=? and password=?";
                pst = conn.prepareStatement(sql);
                pst.setString(1, users.getText());
                pst.setString(2, password.getText());
                rs = pst.executeQuery();
                if(rs.next()) {
                    JOptionPane.showMessageDialog(null, "YES!");
                } else {
                    JOptionPane.showMessageDialog(null, "NO!");
                }
                }catch (Exception e1) {
                    JOptionPane.showMessageDialog(null, e1);
                }