Thread: Can't retrieve Jtext Field values from another frame..

i m trying to retrieve jtext fields and combo box values from another frame and to put them in database but .getText() doesn't return anything please help me thanx in advance

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
         try{
       String sql = "select * from login where uid = ? and pass = ?";
       pst = con.prepareStatement(sql);
       pst.setString(1, jTextField1.getText());
       pst.setString(2, jTextField2.getText());
       rs = pst.executeQuery();
        if(rs.next()){
            JOptionPane.showMessageDialog(null, "username and password is correct ");
           if(products.addProduct==true){
               products p = new products();
               p.addProduct();
               products.addProduct=false;
           }
        }else{
            JOptionPane.showMessageDialog(null, "username and password is not correct ");
 
        }
 
 
 
    }catch(Exception e){
        JOptionPane.showMessageDialog(null, e);
    }
    }

this is a password frame that calls addProduct() method from products class if password is correct.
Here is addProduct() method

public static void addProduct(){
    try {
            int Productid = getProductTypeId(combo_Type.getSelectedItem().toString());
 
            pst = con.prepareStatement("insert into product(pName,Product_type_id,pCost,pPrice,pQuantity,pModel,pCompany) values(?,?,?,?,?,?,?)");
            pst.setString(1, txt_Product_name.getText());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.setInt(2, Productid);
            JOptionPane.showMessageDialog(null, "getProductTypeId is "+txt_Product_name.getText());
            pst.setString(3, txt_Product_cost.getText());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.setString(4, txt_Product_price.getText());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.setString(5, txt_Product_Quatity.getText());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.setString(6, txt_Product_model.getText());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.setString(7, combo_brand.getSelectedItem().toString());
            JOptionPane.showMessageDialog(null, "txt_Product_name is "+txt_Product_name.getText());
            pst.execute();
 
            JOptionPane.showMessageDialog(null, "Saved");
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, e);
        } finally {
            try {
                pst.close();
 
            } catch (Exception e) {
                JOptionPane.showMessageDialog(null, e);
 
            }
 
        }
        Update_Table_Products();
}

thanx for your reply GregBrannon i m using print statements in addProduct() method when it is called the method is invoked successfully but in this the print statements which shows the values of text fields and combo boxes returns default values , for example null for string and 0 for integers.