class Main {
public static void main(String[] args) {
String principalAmount = "434,62";
Long principalAmount100 = Long.valueOf(principalAmount.replace(",", ""));
Long numberOfInstallments = 3L;
Long installment100 = principalAmount100 / numberOfInstallments;
String firstInstallment = installment100.toString();
System.out.println("principalAmount=" + principalAmount);
System.out.println("numberOfInstallments=" + numberOfInstallments);
System.out.println("firstInstallment=" + format(firstInstallment));
Long lastInstallment = principalAmount100 - 2 * installment100;
System.out.println("lastInstallment=" + format(lastInstallment.toString()));
}
private static String format(String number100) {
int idx = number100.length()-2;
return number100.substring(0,idx)+","+number100.substring(idx);
}
}
