import java.util.Scanner; import java.text.NumberFormat; public class FutureValueApp { public static voice main(String[] args) { Scanner sc = new Scanner(System.in); String choice = "y"; while (!choice.equalsIgnoreCase("n")) { // get the input from the user System.out.print("Enter monthly investment: "); double monthlyInvestment = sc.nextDouble(); System.out.print("Enter yearly investment interest rate: "); double interestRate = sc.nextDouble(); System.out.print("Enter number of years: "); int years = sc.nextInt(); // converts yearly to monthly values and initialize future value double monthlyInvestment = interestRate/12/100; int months = years * 12; double futureValue = 0.0; // call the future value method double futureValue = calculateFutureValue(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(); } } // a static method that requires three argument and returns a double private static double calculateFutureValue(doble monthlyInvestment, double monthlyInterestRate, int months) { double futureValue = 0.0; for (int i = 1; i <= months; i++) { futureValue = (futureValue + monthlyInvestment) * (1 + monthlyInterestRate); } return futureValue; } }