format text in java print ticket

Question

Hello, I have the following problem, I'm trying to print a ticket, when printing in the LOG it shows everything well but when I pass the string to a text field this format is lost, I'll leave an example

    double total = 0;
    f.format("%-15s %5s %10s\n", "Item", "Qty", "Price");
    f.format("%-15s %5s %10s\n", "----", "---", "-----");
    for (Detalle detalle: results) {
        f.format("%-15.15s %5d %10.2f\n", detalle.getItem(), detalle.getCantidad(),(double) detalle.getValor());
        total += detalle.getValor();
    }
    f.format("%-15s %5s %10.2f\n", "Tax", "", total * 0.06);
    f.format("%-15s %5s %10s\n", "", "", "-----");
    f.format("%-15s %5s %10.2f\n", "Total", "",
            total * 1.06);

    msg = f.toString();
    System.out.print(f);
    System.out.print(msg);
    textImprimir.setText(f.toString());

Answer 1

The problem is that you use different fonts in the textfield and the LOG,

The font in the LOG uses the same space for every letter, the textfields ones doesn't