Default Case at Different Positions Dry Run in C

Default Case at Different Positions is an interactive C dry run visualizer from the Switch 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.

Default Case at Different Positions Program Code

#include <stdio.h>
int main() {
    int a = 20;
    
    switch(a) {
        default:
            printf("default\n");
            // No break - fall-through
        case 10:
            printf("10\n");
            break;
        case 20:
            printf("20\n");
            break;
    }
    return 0;
}

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