In this example, we demonstrate on using a for loop to find the total sum of an array.

We have talked about property. Here, we used an array property Length to find the number of element in the array. This is shown in line 13 where we access the length of the array using array.Length.

This number is needed for the for loop to calculate the total.

using System; namespace MyArray { class Program { static void Main() { double[] array = { 2.5, 3.2, 5.21, 6.0 }; double sum = 0; int length = array.Length; //finding the length using array propertye Length for (int i = 0; i < length; i++ ) { sum = sum + array[i]; } double average = sum / length; Console.WriteLine("Sum: {0}", sum); Console.WriteLine("Average: {0}", average); Console.ReadLine(); } } }

The program begins by initializing a variable `sum` to 0. Then it loops through the values stored in array, adding each one to sum.

By the end of the loop, sum has accumulated the sum of all values in the array.

The resulting sum is divided by the number of elements to calculate the average.