Check Digit or Not Dry Run in C

Check Digit or Not is an interactive C dry run visualizer from the If 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.

Check Digit or Not Program Code

#include <stdio.h>
int main() {
    char ch;
    scanf(" %c", &ch);

    if (ch >= '0' && ch <= '9')
        printf("Digit");
    else
        printf("Not Digit");

    return 0;
}

View the complete If programs page.