private void btnNextActionPerformed(java.awt.event.ActionEvent evt) {
       try 
       {
            if ( rs.next( ) ) 
            {
                int id_col = rs.getInt("ID");
                String id = Integer.toString(id_col);
                String first = rs.getString("First_Name");
                String last = rs.getString("Last_Name");
                String job = rs.getString("Job_Title");
                txtID.setText(id);
                txtName.setText(first);
                txtFamily.setText(last);
                txtJob.setText(job);
            }
            else {
                rs.previous( );
                JOptionPane.showMessageDialog(Workers.this, "End of File");
            }
        }
        catch (SQLException err) 
        {
            JOptionPane.showMessageDialog(Workers.this, err.getMessage());
        }
    }