Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

83_Stock_Market/csharp/src/Controller.cs

@@ -0,0 +1,112 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Game
+{
+    public static class Controller
+    {
+        /// <summary>
+        /// Manages the initial interaction with the user.
+        /// </summary>
+        public static void StartGame()
+        {
+            View.ShowBanner();
+
+            var showInstructions = GetYesOrNo(View.PromptShowInstructions);
+            View.ShowSeparator();
+            if (showInstructions)
+                View.ShowInstructions();
+
+            View.ShowSeparator();
+        }
+
+        /// <summary>
+        /// Gets a yes or no answer from the user.
+        /// </summary>
+        /// <param name="prompt">
+        /// Displays the prompt.
+        /// </param>
+        /// <returns>
+        /// True if the user answered yes and false if he or she answered no.
+        /// </returns>
+        public static bool GetYesOrNo(Action prompt)
+        {
+            prompt();
+
+            var response = default(char);
+            do
+            {
+                response = Console.ReadKey(intercept: true).KeyChar;
+            }
+            while (response != '0' && response != '1');
+
+            View.ShowChar(response);
+            return response == '1';
+        }
+
+        /// <summary>
+        /// Gets a transaction amount for each company in the given collection
+        /// of companies and returns the updated assets.
+        /// </summary>
+        /// <param name="assets">
+        /// The assets to update.
+        /// </param>
+        /// <param name="companies">
+        /// The collection of companies.
+        /// </param>
+        /// <returns>
+        /// The updated assets.
+        /// </returns>
+        public static Assets UpdateAssets(Assets assets, IEnumerable<Company> companies)
+        {
+            while (true)
+            {
+                View.PromptEnterTransactions();
+
+                var result = Broker.Apply (
+                    assets,
+                    companies.Select(GetTransactionAmount).ToList(),
+                    companies);
+
+                switch (result)
+                {
+                    case (Assets newAssets, TransactionResult.Ok):
+                        return newAssets;
+                    case (_, TransactionResult.Oversold):
+                        View.ShowOversold();
+                        break;
+                    case (Assets newAssets, TransactionResult.Overspent):
+                        View.ShowOverspent(-newAssets.Cash);
+                        break;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets a transaction amount for the given company.
+        /// </summary>
+        /// <param name="company">
+        /// The company to buy or sell.
+        /// </param>
+        /// <returns>
+        /// The number of shares to buy or sell.
+        /// </returns>
+        public static int GetTransactionAmount(Company company)
+        {
+            while (true)
+            {
+                View.PromptBuySellCompany(company);
+
+                var input = Console.ReadLine();
+                if (input is null)
+                    Environment.Exit(0);
+                else
+                if (!Int32.TryParse(input, out var amount))
+                    View.PromptValidInteger();
+                else
+                    return amount;
+            }
+        }
+    }
+}