import java.io.IOException;
import java.util.Scanner;
import java.io.BufferedReader;
import java.io.FileReader;

/**
 * Created by flo on 8/31/15.
 *
 * Purpose: Writing a quick Mortgage class to compute an amount of interest paid out to
 * Financial Firm on a monthly basis.
 *
 * windose: javac Mortgage.java & java Mortgage
 * linux: javac Mortgage.java ;  java Mortgage
 */
public class Mortgage {

    private Double rate;
    private Double amount;
    private Double days;
    private Double total;

    public Mortgage() {
        total = 0.00;
        amount = 150000.00;
        rate = .0576;
        days = (30.00 / 365);
    }

    public double processMortgage(String rate, String amt) {
        this.rate = Double.parseDouble(rate);
        this.amount = Double.parseDouble(amt);
        this.total = this.rate * this.amount * this.days;

        return total;
    }

    public static void main(String[] args) throws IOException {

        Mortgage mort = new Mortgage();
        Scanner scan = new Scanner(System.in);
        String amt = "0", rate = "0";
        double total =0.00;

        System.out.print("Enter in an Amount ?  ");
        amt = scan.nextLine().trim();
			
		if (!amt.matches("^\\d.+$")) {
			System.out.println("Please enter Numbers only ! ");
			System.exit(1);
		}
        
        System.out.print("Enter in a Rate ?  ");
        rate = scan.nextLine().trim();

		if (!rate.matches("^.+\\d+$")) {
			System.out.println("Please enter Numbers only ! ");
			System.exit(1);
		}

        total = mort.processMortgage(rate, amt);
        System.out.println("Your monthly interests on your mortgage is: " + total);

    }
}