//import Amortization;


public class AmortizationFactory

{

    public final static int YEARLY = 0;
    public final static int MONTHLY = 1;


    public static Amortization
        create(double debt, double apr, int years, int type)
        throws IllegalArgumentException
    {
        if (type == YEARLY)
        {
            return new Amortization(debt, apr/100, years);
        }
        else if (type == MONTHLY)
        {
            return new Amortization(debt, aprToMonthlyRate(apr), years*12);
        }
        else
        {
            throw new IllegalArgumentException();
        }

    }


    // convert from APR to monthly rate
    private static double aprToMonthlyRate(double apr)
    {

        return apr/12/100;
    }


    public static void main(String[] args)
    {
        Amortization amortization = null;
        amortization = AmortizationFactory.create(212000, 7.25, 30, AmortizationFactory.YEARLY);
        System.out.println(amortization);
        amortization = AmortizationFactory.create(212000, 7.25, 30, AmortizationFactory.MONTHLY);
        System.out.println(amortization);

    }


}