Word Count in a Sentence in C

 In this tutorial, I will show you how to write a program that will ask the user to give a sentence, and the program will count the number of words in the given sentence and display the results on the screen using a C programming language.

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Program Listing

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main()

{

char buffer[80] = {0};

int count = 0;

printf("\n\n");

printf("\tWord Count in a Sentence in C");

    printf("\n\n");

printf("\tEnter a sentence please: ");

fgets(buffer, sizeof(buffer), stdin);

char *nl = strchr(buffer, '\n');

if (nl != NULL)

nl = '\0'; // remove trailing '\n'

if (buffer[0] == '\n') // user hit only return

{

printf("Number of words: %d", count);

return 1;

}

// assume that the words are separated by space

char *token = strtok(buffer, " ");

while (token != NULL)

{

++count;

token = strtok(NULL, " ");

}

    printf("\n\n");

printf("\tNumber of words: %d.", count);

printf("\n\n");

printf("\tEnd of Program");

printf("\n\n");

}