HW4.21

 import java.util.Scanner;

 public class Solution
 {
     public static void main(String[] args)
     {
         Scanner input = new Scanner(System.in);

         System.out.print("Loan Amount: ");
         double loanAmount = input.nextDouble();
         System.out.print("Number of Years: ");
         int numberOfYears = input.nextInt();

         input.close();

         System.out.printf("%s\t\t%s\t\t%s", "Interest Rate", "Monthly Payment", "Total Payment");
         System.out.println();

         double interestRate;
         double monthlyPayment;
         double totalPayment;

         for(double i = 0.05; i <= 0.08; i += 0.00125)
         {
             interestRate = i;
             monthlyPayment = loanAmount * (interestRate / 12) /
                 (1 - 1 / Math.pow(1 + interestRate / 12, numberOfYears * 12));
             totalPayment = monthlyPayment * numberOfYears * 12;

             System.out.printf("%f\t\t%f\t\t%f", i, monthlyPayment, totalPayment);
             System.out.println();
         }
     }
 }