Bank Emulator

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace MessAroundConsole
{
    /// <summary>
    /// Program designed to emulate a simple bank account system
    /// </summary>
    class Program
    {
        /// <summary>
        /// Our Main section where our program starts and keeps returning to
        /// until the user choses to exit.
        /// </summary>
        /// <param name="args"></param>
        static void Main(string[] args)
        {
            PrintMenu(); // Looks for the function called PrintMenu which is below and runs it
            Console.WriteLine();
            Console.Write("HOW MUCH MONEY WOULD YOU LIKE IN YOUR BANK: ");
            int yourBalance = Int32.Parse(Console.ReadLine()); // Sets our starting balance

            // Here we start our program loop so that it keeps running as it will always
            // return true. Below we give an option for the user to choose which breaks
            // out of the loop
            while (true)
            {
                Console.WriteLine();
                Console.WriteLine("CHECK BALANCE (1)");
                Console.WriteLine("WITHDRAW MONEY (2)");
                Console.WriteLine("DEPOSIT MONEY (3)");
                Console.WriteLine("EXIT (4)");
                Console.WriteLine();
                Console.Write("WHAT WOULD YOU LIKE TO DO (1, 2, 3 or 4): ");
                int yourChoice = Int32.Parse(Console.ReadLine());

                if (yourChoice == 1)
                {
                    CheckBalance(yourBalance); // This sends our balance which was declared
                                               // above to a function called CheckBalance that
                                               // is written below
                }

                if (yourChoice == 2)
                {
                    yourBalance = Withdraw(yourBalance); // This is slightly different to the one
                                                        // above as this one sends our balance to
                    // the function called Withdraw that is written below. The function will then
                    // return a number which yourbalance will then equal that returned number.
                    // For example yourBalance may be 10 and is then sent to Withdraw which will
                    // run a calculation of yourBalance - 5 = 5. So it will send the number 5
                    // back. so yourBalance would now = 5
                }

                if (yourChoice == 3)
                {
                    yourBalance = Deposit(yourBalance); // Does the same thing as documented for
                                                       // withdraw excepts sends it to a different
                                                       // function / method
                }

                if (yourChoice == 4)
                {
                    break; // Ends the program
                }

                else
                {
                    continue; // If any other number is selected it restarts
                }

            }

        }


        /// <summary>
        /// Prints a welcome screen. This is only called at the start of the program.
        /// </summary>
        static void PrintMenu()
        {
            Console.WriteLine("##########################################################");
            Console.WriteLine("##########################################################");
            Console.WriteLine("#######                                            #######");
            Console.WriteLine("#######                    WELCOME                 #######");
            Console.WriteLine("#######                                            #######");
            Console.WriteLine("##########################################################");
            Console.WriteLine("##########################################################");
        }

        /// <summary>
        /// This function / method is used to print out the users ballance.
        /// It takes what ever int paramater is sent to it (in this case the balance)
        /// and prints that on screen.
        /// </summary>
        /// <param name="balance"></param>
        static void CheckBalance(int balance)
        {
            Console.WriteLine();
            Console.WriteLine("YOUR BALANCE IS {0}",balance);
        }

        /// <summary>
        /// This function / method takes the int paramater that is sent to it
        /// (in this case the balance), asks how much the user would like to withdraw
        /// and then deducts that number from the balance. It then returns the new value
        /// which is updated in the Main program.
        /// This also checks that the user isnt trying to withdraw more than is available.
        /// </summary>
        /// <param name="balance"></param>
        /// <returns></returns>
        static int Withdraw(int balance)
        {
            Console.WriteLine();
            Console.Write("HOW MUCH DO YOU WISH TO WITHDRAW: ");
            int withdrawAmnt = Int32.Parse(Console.ReadLine());
            if (withdrawAmnt > balance)
            {
                Console.WriteLine();
                Console.WriteLine("YOU HAVE INSUFICIENT FUNDS");
            }
            else
            {
                int resultingBalance = balance - withdrawAmnt;
                Console.WriteLine("WITHDRAW COMPLETE");
                return resultingBalance;
            }
            return balance;
        }

        /// <summary>
        /// This function / method takes the paramater sent to it from the Main program
        /// (in this case the balance) and asks how much the user would like to
        /// deposit. It then adds that to the balance and returns the new figure which
        /// is updated in the Main program.
        /// </summary>
        /// <param name="balance"></param>
        /// <returns></returns>
        static int Deposit(int balance)
        {
            Console.WriteLine();
            Console.Write("HOW MUCH DO YOU WISH TO DEPOSIT: ");
            int depositAmnt = Int32.Parse(Console.ReadLine());
            int resultingBalance = balance + depositAmnt;
            Console.WriteLine("DEPOSIT COMPLETE");
            return resultingBalance;
        }



    }
}