private void aylikOdeme(double borcMiktari, double aylikFaizOrani, int sene) {
    double aylikOdeme = borcMiktari * aylikFaizOrani / (1 - 1 / Math.pow(1 + aylikFaizOrani, sene * 12));
    System.out.println("Aylik ödeme:" + aylikOdeme);
    System.out.println("Toplam borç:" + aylikOdeme * sene * 12);
}