?? mortgageloop.java
字號:
/**
* @version 1.20 27 Mar 1998
* @author Gary Cornell
*/
import corejava.*;
public class MortgageLoop
{ public static void main(String[] args)
{ double principal;
double yearlyInterest;
int years;
principal = Console.readDouble
("Loan amount (no commas):");
yearlyInterest = Console.readDouble
("Interest rate in % (ex: use 7.5 for 7.5%):") / 100;
years = Console.readInt
("The number of years:");
double y;
for (y = yearlyInterest - 0.01;
y <= yearlyInterest + 0.01; y += 0.00125)
{ double monthlyInterest = y / 12;
double payment = principal * monthlyInterest
/ (1 - (Math.pow(1/(1 + monthlyInterest),
years * 12)));
Format.printf("With rate %6.3f", 100 * y);
Format.printf
("%%, your monthly payment is $%10.2f\n",
payment);
}
}
}
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