Amature needs help please!

How do you write a program that reads a text file and counts the number of words in that file? I'm so lost at this...summer school sucks....

Read up on file I/O
http://www.cprogramming.com/tutorial/lesson10.html

file i/o thats what my friend c+noob is on

jaybo ill give you a hand AIM: deathbydesire101 MSN: [email protected]

ive done this script before and ill post in a sec

here ya go this reads the file for example i got it opening cool.txt in C:\
just put the directory were your file is please dont use this for the hell of it try to learn frum it. ask any questions you dont know

Code:

---

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    int blank_count = 0;
    int char_count = 0;
    int sentence_count = 0;
    char ch;

    ifstream iFile("c:/cool.txt");

    if (! iFile)
    {
        cout << "Error opening input file" << endl;
        return -1;
    }

    while (iFile.get(ch))
    {
        switch (ch) {
            case ' ':
                blank_count++;
                break;
            case '\n':
            case '\t':
                break;
            case '.':
                sentence_count++;
                break;
            default:
                char_count++;
                break;
        }
    }

    cout << "There are " << blank_count << " blanks" << endl;
    cout << "There are " << char_count << " characters" << endl;
    cout << "There are " << sentence_count << " sentences" << endl;

    return 0;
}

---

i only got the sentance count to work for every period so that should give you a general idea

I'm not going to write your program for you, but this should give you an idea.

Code:

---

#include <iostream>
#include <string>

using namespace std;

int main(){
   
    string s;
    int i = 0;
    while ( cin >> s ){
         
          i++;
    }
   
    cout << "You entered " << i << " words.";
}

---

Modify the code so that cin becomes the input stream of the file.

Summer School computer programming class? where is the drool smilie! :D

Agh, my school doesnt even have a regular computer programming course. Well, actually it does have one described but not enough people sign up. It must be a Canadian thing..

Oh yeah and for word counting, of course, pseudo-ish

Code:

---

make a char getChar;
make an int charCount;

open the file

while (you get char) { //takes a char in until the end of file
  if charCount is equal to a space: add 1 to the charCount
}

print the charCount

---

Though I doubt the tutorial on this site is enough info on file I/O, maybe try about.com too.

>Summer School computer programming class? where is the drool smilie!

Yeah same here. My school doesn't even offer a programming class during the regular shcool year! The only classes that are computer-related are CISCO Networking and A+

Quote:

---

Originally Posted by dra

I'm not going to write your program for you, but this should give you an idea.

Code:

---

#include <iostream>
#include <string>

using namespace std;

int main(){
   
    string s;
    int i = 0;
    while ( cin >> s ){
         
          i++;
    }
   
    cout << "You entered " << i << " words.";
}

---

---

even i have a bit of a time making that out the while loop would work much nicer.

Quote:

---

Originally Posted by C+noob

even i have a bit of a time making that out the while loop would work much nicer.

---

He did it like that so the topic creator could learn about file I/O and convert it and optimize it himself, since it is for school it would be better that way (in most peoples eyes). Converting that code may even turn out nicer looking than yours :P

Quote:

---

Originally Posted by C+noob

here ya go this reads the file for example i got it opening cool.txt in C:\
just put the directory were your file is please dont use this for the hell of it try to learn frum it. ask any questions you dont know

Code:

---

#include <iostream>
#include <fstream>
using namespace std;

int main()
{
    int blank_count = 0;
    int char_count = 0;
    int sentence_count = 0;
    char ch;

    ifstream iFile("c:/cool.txt");

    if (! iFile)
    {
        cout << "Error opening input file" << endl;
        return -1;
    }

    while (iFile.get(ch))
    {
        switch (ch) {
            case ' ':
                blank_count++;
                break;
            case '\n':
            case '\t':
                break;
            case '.':
                sentence_count++;
                break;
            default:
                char_count++;
                break;
        }
    }

    cout << "There are " << blank_count << " blanks" << endl;
    cout << "There are " << char_count << " characters" << endl;
    cout << "There are " << sentence_count << " sentences" << endl;

    return 0;
}

---

---

Not to be an ass or anything but although your code does a few interesting things, it doesn't achieve the topic creator's task which is to count words. althought you could count spaces, then add 1....

"One Two" <--- one space : 1 + 1 = 2 words. lol. But that's too much work in my opinion.

haha i thot he mmeant characters hahaha :|

Quote:

---

Originally Posted by dra

>Summer School computer programming class? where is the drool smilie!

Yeah same here. My school doesn't even offer a programming class during the regular shcool year! The only classes that are computer-related are CISCO Networking and A+

---

Damn your lucky...My school only has 2 computer classes (c++/java and CISCO Networking) If they had more during summer school I dont care what they would be I'd take it. I love learning bout comps and stuff.

Quote:

---

Originally Posted by Dae

Code:

---

make a char getChar;
make an int charCount;

open the file

while (you get char) { //takes a char in until the end of file
  if charCount is equal to a space: add 1 to the charCount
}

print the charCount

---

---

You'd have to change the if to...

if charCount is equal to a space or newline or tab or EOF

WOW....a lot of people seemed bummed that their school doesn't have computer programming...iwell, 'll be willing to share my class with those who are less fortunate to have programming classes over the summer....

Quote:

---

Originally Posted by JoshR

You'd have to change the if to...

if charCount is equal to a space or newline or tab or EOF

---

Oh yah tab, if charCount is equal to space or tab. Not EOF because the while statement ends when its at the EOF.

BTW, my school only has 2 computer classes, networking and communications, and computer study, both are just basic crap. No programming classes, the person who said they have c++/java class are lucky. :rolleyes:

Quote:

---

Originally Posted by dra

Not to be an ass or anything but although your code does a few interesting things, it doesn't achieve the topic creator's task which is to count words. althought you could count spaces, then add 1....

"One Two" <--- one space : 1 + 1 = 2 words. lol. But that's too much work in my opinion.

---

He must have editted his post, because he said that he was just giving the topic creator an idea of how to do it, how to count spaces and such will give the topic creator an idea of how to count words. Which is what your topic was like also, to give the topic creator an idea, not give him the complete program.

But...You have to know when the EOF has been found so you can count the last word

Quote:

---

Originally Posted by dra

althought you could count spaces, then add 1....

"One Two" <--- one space : 1 + 1 = 2 words.

---

Counting spaces does not work.

How many words are in this file:

Code:

---

one        two          three

---

Quote:

---

Originally Posted by JoshR

But...You have to know when the EOF has been found so you can count the last word

---

Ohhh yeah you're right you would if you were counting by spaces. In that case I'd use dra's code, count strings, thats the one I was thinking of cause I was playing with that code myself, it works well and easily.

dae...how do you write the code if it counts the strings?

Quote:

---

Originally Posted by jaybo684

dae...how do you write the code if it counts the strings?

---

I dont know how I can help without giving you the program, its pretty much exactly what dra's code is:

Code:

---

#include <iostream>
#include <string>

using namespace std;

int main(){
   
    string s;
    int i = 0;
    while ( cin >> s ){
         
          i++;
    }
   
    cout << "You entered " << i << " words.";
}

---

Open the file, and instead of cin.. use the file. I dont know if using a string is more efficient than using a char and counting words based on spaces/tabs/n/and eof, but it works and the code is simple.

Quote:

---

Originally Posted by Rashakil Fol

Counting spaces does not work.

How many words are in this file:

Code:

---

one        two          three

---

---

it was just a suggestion....

besides, assuming the sentences are properly written, as in one space between each word, and two after a sentence, he could probably get away with it.

But even then, it's too much work. Letting the library do all the work is best. lol.

5.4 and 5.5 is what I have to do...

http://www.santarosa.edu/~ssarkar/ci.../cis10/a5.html

I would just use a char array for 5.5 :D

technically, you'd be reading it in character by character ;)

With all the "hints" given on this topic and on that actual page, theres a hints link, you should be able to figure it out. Dra's code implimented with what I said to do is 5.4 (with the addition of "asking for the filename to be opened (stored in a string)"). In 5.5 you simply do the same thing but instead of taking a string at a time from the file, take a char (as it says to do), and test if its a space, tab, end of line, or end of file, if it is then you add 1 to wordCount. In addition you could use a char array to store the output for 5.5, but thats pointless for this program as you can simple cout it 1 char at a time as it comes out.