Sum of even numbers in c

• Please check this below program which prints even numbers from 1 to n.

• Print even numbers in c 
• To print sum of even numbers from 1 to n first we need to get all the even numbers and add them.
• Using for or while loop iterate from 1 to n number and get all even numbers
• sum=sum+evenNumber
• C program to find sum of even numbers using while loop

C program to find sum of even numbers using while loop

2. #include<stdio.h> 
3. //write a program to print even numbers in c using while loop
4. //www.instanceofjava.com
5. int main()
6. {
7.     // declare variables 
8.     int number,i,sum=0;
9.     //read input from user 
10.     printf("Enter a number: ");
11.     scanf("%d", &number);
12. 
    
13.    //iterate and check if it a even number or not 
14.      i=1;
15.        
16.         while(i<=number){
17.                 
18.         if(i%2 ==0){
19.         
20.           printf("%d\n" ,i);
21.            sum=sum+i;    
22.         }
23.           i++  ;  
24.         }
25.          printf("sum of all even numbers = %d",sum);
26.          
27.    getch();
28. }

Output:

1. Enter a number:8
2. 2
3. 4
4. 6
5. 8
6. sum of all even numbers= 20