Count Number of Words in a String Dry Run in C

Count Number of Words in a String is an interactive C dry run visualizer from the Strings programs section. Study the source code, then use the execution controls to follow each step, variable update, highlighted line, and console output.

This page provides a browser-based dry run with source-code highlighting, auto-scroll, voice narration controls, and execution output for learning the program step by step.

Count Number of Words in a String Program Code

#include <stdio.h>
int main() {
    char str[] = "  Hello   world!  C programming.  ";
    int words = 0, inWord = 0;
    int i = 0;
    
    while(str[i] != '\0') {
        if(str[i] == ' ' || str[i] == '\t' || str[i] == '\n') {
            inWord = 0;
        }
        else if(inWord == 0) {
            inWord = 1;
            words++;
        }
        i++;
    }
    
    printf("Number of words: %d\n", words);
    return 0;
}

View the complete Strings programs page.