using System;

public class Program

{

    public static void Main()

    {

​

   // Declare the necessary variables.

​

    double investment, arr;

    int years;

​

    Console.WriteLine("\nEnter an initial investment amount");

        if(Double.TryParse(Console.ReadLine(), out investment) && investment>0)

        {

             Console.WriteLine("Enter an annual rate of return");

            if(Double.TryParse(Console.ReadLine(), out arr) && arr>0 && arr<1)

              {

                Console.WriteLine("Enter the number of years the money will be invested for (please enter an integer)");

              if(int.TryParse(Console.ReadLine(), out years) && years>=1 && years<=100) //does within the range include these

                   {

                    // success and do the loop

                  string a = "Year";

                Console.WriteLine("\n"+a.PadRight(10) + "Year End Value");  

            for (int i=1;i <= years;i++)

            {

                string b = "";

                investment = investment * (1+arr);

                Console.WriteLine(" " + i + b.PadRight(10) + Math.Round(investment,2)); //first few years of FV dont have decimal values 0.00

                // year 10 is not aligned, is that okay?

            }

                  }

                else

                {

                    Console.WriteLine("Error: Please enter an integer between 1 to 100 as the number of years");

                }

              }

                else 

               {

            Console.WriteLine("Error: Please enter a decimal number between 0 to 1");

               }

         }

        else 

        {

            Console.WriteLine("Error: Please enter a positive number as the investment amount");

        }

        // if statements are done, ask if leaving nothing in else section stops a calculation or if you should put something.

                // curly brackets start for program

        // is bonus mandatory or just a bonus

    }

}

​