String SerialNumber=textField_2.getText();

            String ModelNumber=textField_3.getText();

            String Make=textField_4.getText();
            try
            {
                Connection con=DB.getConnection();
                Statement ps=con.createStatement();

                 ResultSet rs=ps.executeQuery("Select DeviceID,DeviceName,SerialNumber,ModelNumber,Make FROM deviceadd WHERE DeviceID =?");
                 if(rs.next())
                 {

                String ID = rs.getString("DeviceName");
                textField_1.setText(ID);
                String FN = rs.getString("SerialNumber");
                textField_2.setText(FN);
                String LN = rs.getString("ModelNumber");
                textField_3.setText(LN);
                String Des = rs.getString("Make");
                textField_4.setText(Des);
                 }

            }
            catch (SQLException e1)
            {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        }

    });