gistfile1.txt

 public static void main(String[] args) {

        Scanner lector = new Scanner(System.in);

        String[] letras = {"T", "R", "W", "A", "G", "M", "Y", "F", "P", "D", "X", "B", "N", "J", "Z", "S", "Q", "V", "H", "L", "C", "K", "E"};
        int[] valors = new int[5];
        int ocupacio = 0, i, x;
        int posicion;

        do {
            System.out.println("Introduce numeros de DNI");
    
            for (i = 0; i < valors.length; i++) {
                if (lector.hasNextInt()) {
                    valors[i] = lector.nextInt();

                } else if (lector.hasNext("fi")) {
                    break;

                } else {

                    System.out.println("Dada Incorrecta");
                    lector.nextLine();
                    i--;

                }

            }

            for (x = 0; x < letras.length; x++) {
                letras[x] = lector.next();

                ocupacio = i;
                posicion = x % 23;

                for (int j = 0; j < ocupacio; j++) {
                    System.out.println(valors[j]);

                    System.out.println("NIF: " + valors[j] + "-"+ letras[posicion]);
                }

            }

        } while (!lector.hasNext("fi"));

    }
}