Count alphabets in a file – Computer Sir Ki Class


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Solved Problem #CPP#5026    siteicon   siteicon  

Problem Statement - Count alphabets in a file

Write a program to count alphabets in a given file “NOTES.TXT”. What would be  the output when this file is tested with the NOTES.TXT  file containing the following lines.

This is first line
This is second line
This is third line


TC++ #5026


Run Output

No. of alphabets in given file = 46

#include <fstream.h> //This include file is required to support ifstream class
#include <ctype.h>          //This include is required to use isalpha() function

ifstream ipfile(“NOTES.TXT”,ios::in);
Opening file NOTES.TXT in input. For proper functioning this file must be created in advance.

int c=0; //This will store the count of alphabet.

if(!ipfile)  {cout<<“Unable to open file”<<endl;return 1;}

To ensure that input file is present this code must be added, else the program can go haywire.

while(!ipfile.eof()) { //This loop runs till the input file reaches the end
char ch=ipfile.get(); //Character is read using the .get function of ifstream object
if(isalpha(ch)) c++;  //The counter is incremented only when the character read is an upper or lower case alphabet

cout<<“No. of alphabets in given file = “<<c<<endl;
The count is alphabet is printed outside the loop.


  • This code can be tested on your local system only once a file with given content is created with its name as NOTES.TXT
  • It is always a good practice to check if the file has been opened properly. It will not open properly in many cases. One can reach the OS by returning an error to the operating system.
  • For DOS testing with TurboC environment, learners are advised to keep the input file in the BIN directory are the turboc program runs from there.


CSKC| Created: 24-Nov-2018 | Updated: 24-Nov-2018|

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