private void opActions(int Index, JTextField jtf, JButton jb, String preText) {
        if (!jtf.getText().equalsIgnoreCase(preText)) {
            Object[] what = new Object[1];
            what[0] = jtf.getText();
            Controller.controller(Index, what);
            if (preText.equalsIgnoreCase("")) {
                jtf.setForeground(Black);
            } else {
                jtf.setForeground(Gray);
            }
            jtf.setText(preText);
            jb.requestFocus();
        }
    }