Control Statements Example Programs

Control Statements (if,switch case & loops) example programs

1. WAP in C# to print even number from 0 – 100

   //print even number from 0 - 100 
   using System;
   class HelloWorld
   {
     static void Main ()
     {
   
       for (int i = 1; i <= 100; i++)
         {
   
   	if (i % 2 == 0)
   	  {
   
   	    Console.WriteLine (i);
   
   	  }
       }
     }
   }

2. WAP in C# to print factors of a user input number

   //print factors of number
   using System;
   class HelloWorld
   {
     static void Main ()
     {
   
       Console.WriteLine ("Enter Number");
       int n = Convert.ToInt32 (Console.ReadLine ());
   
       for (int i = 1; i <= n; i++)
         {
   	if (a % i == 0)
   	  {
   	    Console.WriteLine (i);
   	  }
       }
     }
   }

3. WAP in C# to find factorial of a user input number.

   //print factorial of user input number 
   using System;
   class HelloWorld {
     static void Main() {
         
         Console.WriteLine("Enter Number");
         int n = Convert.ToInt32(Console.ReadLine());
         int fact=1;
         
         for(int i=1; i<=n; i++){
             
             fact = fact*i;
             
         }
         Console.WriteLine(fact);
     }
   }

4. WAP to check if the number is prime or commposite

   //prime check
   using System;
   class HelloWorld
   {
     static void Main ()
     {
   
       Console.WriteLine ("Enter Number");
       int n = Convert.ToInt32 (Console.ReadLine ());
       bool comp = false;
   
   
       for (int i = 2; i <= n/2; i++)
         {
   
   	if (n % i == 0)
   	  {
   	    comp = true;
   	    break;
   	  }
         }
       if (comp == true)
         {
   	      Console.WriteLine ("composite");
         }
       else
         {
           Console.WriteLine ("Prime");  
         }
     }
   }