C# switch

The C# switch statement executes one statement from multiple conditions. It is like if-else-if ladder statement in C#.

Syntax

switch(expression){  
case value1:  
 //code to be executed;  
 break;
case value2:  
 //code to be executed;  
 break;
......  
  
default:   
 //code to be executed if all cases are not matched;  
 break;
}

Example

C# Switch Example

snippet

using System;
  public class SwitchExample
    {
      public static void Main(string[] args)
      {
          Console.WriteLine("Enter a number:");
          int num = Convert.ToInt32(Console.ReadLine());

          switch (num)
          {
              case 10: Console.WriteLine("It is 10"); break;
              case 20: Console.WriteLine("It is 20"); break;
              case 30: Console.WriteLine("It is 30"); break;
              default: Console.WriteLine("Not 10, 20 or 30"); break;
          }
      }
    }

Output

Enter a number: 10 It is 10

Output

Enter a number: 55 Not 10, 20 or 30

Note

In C#, break statement is must in switch cases.