/**
 * Title:        Chapter 2, "Primitive Data Types and Operations"
 * Description:  Examples for Chapter 2
 * Copyright:    Copyright (c) 2000
 * Company:      Armstrong Atlantic State University
 * @author Y. Daniel Liang
 * @version 1.0
 */

// ComputeMortgage.java: Compute mortgage payments

public class ComputeMortgage
{
  /**Main method*/
  public static void main(String[] args)
  {
    double annualInterestRate;
    int numOfYears;
    double loanAmount;

    // Enter yearly interest rate
    System.out.print(
      "Enter yearly interest rate, for example 8.25: ");
    annualInterestRate = MyInput.readDouble();

    // Obtain monthly interest rate
    double monthlyInterestRate = annualInterestRate/1200;

    // Enter number of years
    System.out.print(
      "Enter number of years as an integer, for example 5: ");
    numOfYears = MyInput.readInt();

    // Enter loan amount
    System.out.print("Enter loan amount, for example 120000.95: ");
    loanAmount = MyInput.readDouble();

    // Calculate payment
    double monthlyPayment = loanAmount*monthlyInterestRate/
      (1 - 1/(Math.pow(1 + monthlyInterestRate, numOfYears*12)));
    double totalPayment = monthlyPayment*numOfYears*12;

    // Display results
    System.out.println("The monthly payment is " + monthlyPayment);
    System.out.println("The total payment is " + totalPayment);
  }
}