how to write default case in switch in c# 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 case set value

int x = SwitchExpressionUsingGuardClause(y);

// Keywords: Switch Expressions, C# 8.0, Guard Clause
private int SwitchExpressionUsingGuardClause(int y)
{
    switch (y)
    {
        case 0: return 10;
        case 1: return 20;
        default: return 5;
    }
}