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 harryt123 16Jun2006 04:25

Help with Mortgage calculator program

I designed a Java mortgage program and it is working fine but I need to add some more things to it. I want to make the program list the loan balance and the interest paid for each payment over the term of the 30 year loan.(I want it to list for every 1 yr and then every couple of years). I want this list to scroll off the screen or even do a loop to show the partial list, hesitate and then display more of the list. I want to do this program with no GUI(graphical user interface). I will post my program coding below and any help would be appreciated greatly.

Code:

```public class MortgageProgram {         public static void main (String[] args){         double payment, principal = 200000; //*Principle amount of loan is \$200,000         double annualInterest = 0.0575; //*Interest rate is currently 5.75%         int years = 30; //*Term of the loan is 30 years                 if (args.length == 3) {                         principal = Double.parseDouble(args[0]);               annualInterest = Double.parseDouble(args[1]);               years = Integer.parseInt(args[2]);                   }           print(principal, annualInterest, years);                             System.out.println("Usage: Calculate Mortgage Payment Amount ");             System.out.println("\nFor example: \$200,000 Mortgage loan amount, 5.75% interest for a 30 year term "); //*States that Loan Amount is \$200,000, interest is 5.75% and it is 30 year term.             System.out.println("\nThe Following is your output based on the hardcoded amount: \n"); //*Will show output in the following format             print(principal, annualInterest, years);             System.exit(0); //*System exits nice and quietly         }        public static double calculatePayment(double principal, double annRate, int years){         double monthlyInt = annRate / 12;         double monthlyPayment = (principal * monthlyInt)                     / (1 - Math.pow(1/ (1 + monthlyInt), years * 12)); //*Shows 1 monthly payment multiplied by 12 to make one complete year.         return format(monthlyPayment, 2);     }     public static double format(double amount, int mortgage) {         double temp = amount;         temp = temp * Math.pow(10, mortgage);         temp = Math.round(temp);         temp = temp/Math.pow(10, mortgage);         return temp;     }     public static void print(double pr, double annRate, int years){         double mpayment = calculatePayment(pr, annRate, years);         System.out.println("The principal is \$" + (int)pr); //*Shows the principle amount in \$ value.         System.out.println("The annual interest rate is " + format(annRate * 100, 2) +"%");         System.out.println("The term is " + years + " years"); //*Term is normally in years.         System.out.println("Your monthly payment is \$" + mpayment); //*Shows output of monthly payment.           } }```

 rheamae05 24Jul2008 20:11

Re: Help with Mortgage calculator program

The code script is good! What site are you working with?

 Mviner 30Jul2008 17:16

Re: Help with Mortgage calculator program

Do you have any website where you uploaded this to see how it works ?

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