Help! Please

This is a discussion on Help! Please within the C++ Programming forums, part of the General Programming Boards category; I'm trying to write a program to count the number of each letter of the alphabet and count the words. ...

  1. #1
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    Oct 2001
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    9

    Help! Please

    I'm trying to write a program to count the number of each letter of the alphabet and count the words. I have the word count but don't know how to start my letter counts.
    thanks in advance for your help...

    Here is what i have so far:

    # include <iostream.h>
    # include "string.h"

    void alphabet( char [] ); //functions prototype

    int main()
    {
    int count = 0;
    char string[256];

    cout <<"Please enter 1 line of text from the keyboard. \n";
    cout <<"Please hit enter when you are done.\n\n";
    cin.getline(string, 256, '\n'); //The user input goes into string
    int countA = 0;
    for(int i = 0; i < 256; i++)
    {
    if (string[i] == 'a' || 'A')
    countA++;
    else
    }
    cout <<"A " << countA << "\n";


    char *tokenPtr;
    tokenPtr = strtok( string, " " );

    while ( tokenPtr != NULL )/* The following code counts the words or tokens in a sentence.*/
    {
    tokenPtr = strtok( NULL, " " );
    count = count + 1;
    }//end while ( tokenPtr != NULL )

    cout << "Word Count: " << count;

    return 0;
    }//end int main ()

  2. #2
    zen
    zen is offline
    of Zen Hall zen's Avatar
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    Aug 2001
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    1,007
    You could create a 26 element array 0-a 25-z, and loop through your line incremeting the [theletter-a] element for each letter.
    zen

  3. #3
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    Sep 2001
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    156
    this will get you started

    Code:
    #include "stdafx.h"
    #include <iostream>
    using namespace std;
    
    int Occurences( char cAlpha, char* szString );
    
    int main() 
    { 
    
    	char szString[ 256 ];
    	strcpy( szString, "THis is a very long STRING and all characters WILL BE counted" );
    
    	char cAlpha = 'A';
    	for( int i = 0; i < 26;i++ )
    	{
    		cout <<  cAlpha << " occurs " << Occurences( cAlpha , szString ) 
    			<< " times in the string  \"" << szString << "\""<< endl;
    		cAlpha++; // a + 1 = b and so on
    	}
    
    	return 0; 
    } // end
    
    int Occurences( char cAlpha, char* szString )
    {
    	// NULL pointer bad ju-ju
    	if( NULL == szString )
    	{
    		return 0;
    	}
    
    	int i = 0;
    	int nCount = 0;
    	do
    	{
    		//an Uppercase character + 32 is the lowercase of the character
    		//here we test for both.. more info on this look at an acii code chart
    		if( cAlpha == szString[ i ] || ( cAlpha + 32 ) == szString[ i ] )
    			nCount++;
    		i++;
    	}
    	while( NULL != szString[ i ] );
    
    	return nCount;
    
    }

  4. #4
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    Oct 2001
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    9
    I still don't get it, i want it so the user can enter a line of text.

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