C# Sharp Exercises: Calculate n terms of even natural number and their sum

C# Sharp For Loop: Exercise-16 with Solution

Write a program in C# Sharp to display the n terms of even natural number and their sum.

Pictorial Presentation:

Sample Solution:

C# Sharp Code:

using System;  
public class Exercise16  
{  
    public static void Main()
{
   int i,n,sum=0;
   
	Console.Write("\n\n");
    Console.Write("Calculate n terms of even natural number and their sum:\n");
    Console.Write("---------------------------------------------------------");
    Console.Write("\n\n");   

   Console.Write("Input number of terms : ");
   n= Convert.ToInt32(Console.ReadLine());    
   Console.Write("\nThe even numbers are :");
   for(i=1;i<=n;i++)
   {
     Console.Write("{0} ",2*i);
     sum+=2*i;
   }
   Console.Write("\nThe Sum of even Natural Number upto {0} terms : {1} \n",n,sum);
 }
} 

Sample Output:

Calculate n terms of even natural number and their sum:                                                                                                        
---------------------------------------------------------                      
Input number of terms : 10                                                                                                                     
The even numbers are :2 4 6 8 10 12 14 16 18 20                                                                                                                
The Sum of even Natural Number upto 10 terms : 110 

Flowchart:

C# Sharp Code Editor:

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