c# switch statement

                                    using System;

public class Example
{
   public static void Main()
   {
      int caseSwitch = 1;

      switch (caseSwitch)
      {
          case 1:
              Console.WriteLine("Case 1");
              break;
          case 2:
              Console.WriteLine("Case 2");
              break;
          default:
              Console.WriteLine("Default case");
              break;
      }
   }
}
// The example displays the following output:
//       Case 1

                                    switch(expression) 
{
  case x:
    // code block
    break;
  case y:
    // code block
    break;
  default:
    // code block
    break;
}

                                    int caseSwitch = 1;
switch (caseSwitch)
{
  case 1:
    Console.WriteLine("Case 1");
    break;
  case 2:
    Console.WriteLine("Case 2");
    break;
  default:
    Console.WriteLine("Default case");
    break;
}

                                    string commandName = "start";

switch (commandName)
{
    case "start":
        Console.WriteLine("Starting service...");
        StartService();
        break;
    case "stop":
        Console.WriteLine("Stopping service...");
        StopService();
        break;
    default:
        Console.WriteLine(String.Format("Unknown command: {0}", commandName));
        break;
}