C# switch case default code example

Example 1: c# switct case

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

Example 2: c# switch statement

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;
}

Example 3: c# switch case

using System;
namespace DecisionMaking 
{
   class Program 
   {
      static void Main(string[] args) 
      {
         /* local variable definition */
         char grade = 'B';
         
         switch (grade) 
         {
            case 'A':
               Console.WriteLine("Excellent!");
               break;
            case 'B':
            case 'C':
               Console.WriteLine("Well done");
               break;
            case 'D':
               Console.WriteLine("You passed");
               break;
            case 'F':
               Console.WriteLine("Better try again");
               break;
               default:
            Console.WriteLine("Invalid grade");
               break;
         }
         Console.WriteLine("Your grade is  {0}", grade);
         Console.ReadLine();
      }
   }
}
                       =======OUTPUT========
	Well done
	Your grade is B

Example 4: c# switch

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

Example 5: c# select case

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

Example 6: c# new switch syntax

public static RGBColor FromRainbow(Rainbow colorBand) =>
    colorBand switch
    {
        Rainbow.Red    => new RGBColor(0xFF, 0x00, 0x00),
        Rainbow.Orange => new RGBColor(0xFF, 0x7F, 0x00),
        Rainbow.Yellow => new RGBColor(0xFF, 0xFF, 0x00),
        Rainbow.Green  => new RGBColor(0x00, 0xFF, 0x00),
        Rainbow.Blue   => new RGBColor(0x00, 0x00, 0xFF),
        Rainbow.Indigo => new RGBColor(0x4B, 0x00, 0x82),
        Rainbow.Violet => new RGBColor(0x94, 0x00, 0xD3),
        _              => throw new ArgumentException(message: "invalid enum value", paramName: nameof(colorBand)),
    };