C# switch

by Online Tutorials Library July 14, 2022

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 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.

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