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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;
}  

C# switch statement flow

C# Switch Example

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.

Next TopicC# For Loop

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