C Switch

Used for multi-way branching alternative to if-else.
it allows to choose one from multiple code blocks based on the value of an expression.

Syntax
switch (expression) {
case constant1:
// Code to be executed if expression matches constant1
break;

case constant2:
// Code to be executed if expression matches constant2
break;

// Additional cases as needed

default:
// Code to be executed if none of the cases match
}


#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;
        case 4:
            printf("Thursday\n");
            break;
        case 5:
            printf("Friday\n");
            break;
        case 6:
            printf("Saturday\n");
            break;
        case 7:
            printf("Sunday\n");
            break;
        default:
            printf("Invalid day\n");
    }

    return 0;
}

The switch statement evaluates the value of the day variable.
By giving the value of day the case block is executed.
if no value is matched to the case value then the default block is executed.
THe break statement is used to prevent execution of next case.

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