import java.text.NumberFormat;

import java.util.Scanner;

public class FutureValueApp {

public static void main(String[] args) {

System.out.println("Welcome to the Future Value App\n");

Scanner sc=new Scanner(System.in);

String choice="y";

while (choice.equalsIgnoreCase("y")){

//get the input from the user

System.out.print("Enter monthly investment: ");

double monthlyInvestment =sc.nextDouble();

System.out.print("Enter yearly investment rate: ");

double interestRate =sc.nextDouble();

System.out.print("Enter number of years: ");

int years=sc.nextInt();

//convert yearly values to monthly values

double monthlyInterestRate=interestRate/12/100;

int months=years/12;

//call future value method

double futureValue =calaulateFutureValue(monthlyInvestment,monthlyInterestRate,months);

//format and display the result

NumberFormat currency = NumberFormat.getCurrencyInstance();

System.out.println("Future value: "+

currency.format(futureValue));

System.out.println();

//see if the user wants to continue

System.out.print("Continue? (y/n): ");

choice=sc.next();

System.out.println();

}

}

//static method that requires three arguments and return a double

public static double calaulateFutureValue(double monthlyInvestment,

double monthlyInterestRate, int months){

double futureValue=0.0;

for (int i = 0; i <months ; i++) {

futureValue=(futureValue+monthlyInvestment)*(1+monthlyInterestRate);

}

return futureValue;

}

}