Bowling in csharp

14_Bowling/csharp/Utility.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Bowling
+{
+    internal static class Utility
+    {
+        public static string PadInt(int value, int width)
+        {
+            return value.ToString().PadLeft(width);
+        }
+        public static int InputInt()
+        {
+            while (true)
+            {
+                if (int.TryParse(InputString(), out int i))
+                    return i;
+                else
+                    PrintString("!NUMBER EXPECTED - RETRY INPUT LINE");
+            }
+        }
+        public static string InputString()
+        {
+            PrintString("? ", false);
+            var input = Console.ReadLine();
+            return input == null ? string.Empty : input.ToUpper();
+        }
+        public static void PrintInt(int value, bool newLine = false)
+        {
+            PrintString($"{value} ", newLine);
+        }
+        public static void PrintString(bool newLine = true)
+        {
+            PrintString(0, string.Empty);
+        }
+        public static void PrintString(int tab, bool newLine = true)
+        {
+            PrintString(tab, string.Empty, newLine);
+        }
+        public static void PrintString(string value, bool newLine = true)
+        {
+            PrintString(0, value, newLine);
+        }
+        public static void PrintString(int tab, string value, bool newLine = true)
+        {
+            Console.Write(new String(' ', tab));
+            Console.Write(value);
+            if (newLine) Console.WriteLine();
+        }
+    }
+}