Exercise
Count Letters In A File
Objetive
Create a program to count the amount of times that a certain character is inside a file (of any kind).
The file and the letter can be asked to the user or passed as parameters:
count example.txt a
It must display in screen the amount of letters found.
(you can choose any way to interact with the user, showing the proper help)
Example Code
using System;
using System.IO;
namespace ConsoleApplication1
{
class CountLetters
{
static void Main()
{
bool debug = true;
Console.Write("Name of file: ");
string nameFile = Console.ReadLine();
Console.Write("Letter for count: ");
string letter = Console.ReadLine();
StreamReader myfile;
myfile = File.OpenText(nameFile);
string line;
int countLetter = 0;
do
{
line = myfile.ReadLine();
if (line != null)
for (int i = 0; i < line.Length; i++)
if (line.Substring(i, 1) == letter)
countLetter++;
}
while (line != null);
myfile.Close();
Console.WriteLine("Amount of letter: {0}", countLetter);
if (debug)
Console.ReadLine();
}
}
}