Thread: Help with counting letters

Hello,
I have looked at some of the other threads that are similar to my dilemma, but they don't seem to capture what I'm experiencing. I basically have to make a program (specifically using the string class versus C-string) that allows a user to type a line of text. It then has to figure out how many words there are in the line of text and give a count of letters (making sure that lower case and upper case are seen as the same letter). The following code doesn't include my part for the word counting, as I have that under control. The part I can't quite get is the letter count. Here's my code thus far:

Code:

#include <iostream>
#include <string>
#include <cstring>

using namespace std;


int main ()

{
	int letter_count;
	int words=0;
	int counter[26]={0};
	
	string line;

	cout << "Enter a line of text:\n";

	getline(cin,line);
   
	for (letter_count=0; letter_count <=line.length(); letter_count++)
		
		{
		if (isalpha(line[letter_count]))
		{
			line[letter_count]=tolower(line[letter_count]);
			
			cout << counter[line[letter_count]] << endl ;
            counter [line[letter_count] - 'a']++;
		} else
		{
			words=words+1;
		}
return 0;
}

Sample output:

Enter a line of text:
I say hi.

i 1
s 44
a 2
y 0
h 112
i 1

I assuming that instead of giving counts for each of these letters, it is displaying the ASCII representation instead. I am not sure how to get to do the following instead:

Enter a line of text:
I say hi.

i 2
s 1
a 1
y 1
h 1

Any suggestions/guidance that could be provided on this would very very much appreciated.

Thank you!

Code:

#include <iostream>
#include <string>
#include <cstring>

using namespace std;

int main ()
{
  int letter_count;
  int words=0;
  int counter[26]={0};
	
  string line;

  cout << "Enter a line of text:\n";

  getline(cin,line);
   
  for (letter_count=0; letter_count <=line.length(); letter_count++)
    {
      if (isalpha(line[letter_count]))
	{
	  line[letter_count]=toupper(line[letter_count]);
			
	  counter[line[letter_count]-'A']++;
	} 
      else
	{
	  words=words+1;
	}
    }

  for (letter_count=0; letter_count<=25; letter_count++)
    {
      if(counter[letter_count] > 0)
	{
	  cout << char(letter_count+'A') << " " << counter[letter_count] << endl;
	}
    }

  return 0;
}

Thank you both very very much!! It's working like a charm!