Hello,
Can you help me with building this C# console application:

Write a class that reads a text files and computes the relative frequency of each letter of the
alphabet. You use an array to store the numbers of occurrences of each letter. You use
ToLower method to convert uppercase letters. The relative frequency is the number of
occurrences divided to the total number of letter in the text without white spaces characters.
Subtracting “a” give you the number of the occurrences of this letter.
Test your program in a Console application, first with a ten lines of text and after run it
several with larger text files and compare the results. This information can be used to break
the Caesar code.

Thanks in advance!