how to calculate the sum of even number in csharp

To calculate the sum of even numbers in C#, you can use a loop to iterate through a range of numbers and add the even numbers to a running sum.

Here's an example code snippet:

main.cs
int sum = 0;
for (int i = 0; i <= 100; i++)
{
    if (i % 2 == 0)
    {
        sum += i;
    }
}
Console.WriteLine("The sum of even numbers is {0}", sum);
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This code calculates the sum of even numbers between 0 and 100. The variable sum is initially set to 0, and then the loop iterates through each number from 0 to 100. If the number is even (i.e., its remainder when divided by 2 is 0), it is added to the sum variable. The final result is printed to the console.

You can adjust the range of numbers or the starting point to suit your needs.