Update readability

docs/core/docker/snippets/App/Program.cs

@@ -1,9 +1,16 @@
 var counter = 0;
-var max = args.Length is not 0 ? Convert.ToInt32(args[0]) : -1;
 
-while (max is -1 || counter < max)
+// If a number is passed as a command-line argument,
+// it will be used as the maximum counter value.
+var max = args.Length > 0 && int.TryParse(args[0], out var parsedMax)
+    ? parsedMax
+    : -1;
+
+// Run indefinitely if no max value is provided
+while (max == -1 || counter < max)
 {
     Console.WriteLine($"Counter: {++counter}");
 
-    await Task.Delay(TimeSpan.FromMilliseconds(1_000));
+    // Wait for one second between iterations
+    await Task.Delay(TimeSpan.FromSeconds(1));
 }

docs/core/tutorials/snippets/create-class-library/csharp/ShowCase/Program.cs

@@ -1,30 +1,42 @@
 using System;
 using UtilityLibraries;
 
-int row = 0;
+const int EntriesPerPage = 7;
 
-do
+int entryCount = 0;
+
+ResetConsole();
+
+while (true)
 {
-    if (row == 0 || row >= 25)
+    string? input = Console.ReadLine();
+
+    if (string.IsNullOrWhiteSpace(input))
+        break;
+
+    if (entryCount >= EntriesPerPage)
+    {
+        Console.WriteLine("Press any key to continue...");
+        Console.ReadKey(true);
         ResetConsole();
+        entryCount = 0;
+    }
+
+    string result = input.StartsWithUpper() ? "Yes" : "No";
+
+    Console.WriteLine($"Input: {input}");
+    Console.WriteLine($"{"Begins with uppercase?",30}: {result}");
+    Console.WriteLine();
+
+    entryCount++;
+}
 
-    string? input = Console.ReadLine();
-    if (string.IsNullOrWhiteSpace(input)) break;
-    Console.WriteLine($"Input: {input} {"Begins with uppercase? ",30}: " +
-                      $"{(input.StartsWithUpper() ? "Yes" : "No")}{Environment.NewLine}");
-    row += 3;
-} while (true);
 return;
 
-// Declare a ResetConsole local method
 void ResetConsole()
 {
-    if (row > 0)
-    {
-        Console.WriteLine("Press any key to continue...");
-        Console.ReadKey();
-    }
     Console.Clear();
-    Console.WriteLine($"{Environment.NewLine}Press <Enter> only to exit; otherwise, enter a string and press <Enter>:{Environment.NewLine}");
-    row = 3;
+    Console.WriteLine();
+    Console.WriteLine("Press <Enter> only to exit; otherwise, enter a string and press <Enter>:");
+    Console.WriteLine();
 }