? switch Statement in C

The switch statement in C is used to execute one block of code among many options, based on the value of a variable or expression.

? Basic Syntax

c
#include <stdio.h>int main() {    int day = 3;    switch(day) {        case 1:            printf("Monday\n");            break;        case 2:            printf("Tuesday\n");            break;        case 3:            printf("Wednesday\n");            break;        default:            printf("Invalid day\n");    }    return 0;}

? Output:

mathematica
Wednesday

?? Fall-through Example (No break)

c
int grade = 2;switch(grade) {    case 1:    case 2:    case 3:        printf("Passed\n");        break;    case 4:        printf("Failed\n");        break;}

? Output:

nginx
Passed

? When to Use switch

Use switch when:

• You have many fixed options (like menu choices)

• You want cleaner alternatives to long if...else if chains