Switch Statements

Simple switch statement

#include <stdio.h>

int main() {
    int choice = 2;
    
    switch (choice) {
        case 1:
            printf("Option 1 selected\n");
            break;
        case 2:
            printf("Option 2 selected\n");
            break;
        case 3:
            printf("Option 3 selected\n");
            break;
        default:
            printf("Invalid option\n");
            break;
    }
    
    return 0;
}

C switch statement with integer cases

#include <stdio.h>

int main() {
    int choice = 2;
    
    switch (choice) {
        case 1:
            printf("Option 1 selected\n");
            break;
        case 2:
            printf("Option 2 selected\n");
            break;
        case 3:
            printf("Option 3 selected\n");
            break;
        default:
            printf("Invalid option\n");
            break;
    }
    
    return 0;
}

C switch statement with character cases

#include <stdio.h>

int main() {
    char grade = 'B';
    
    switch (grade) {
        case 'A':
            printf("Excellent!\n");
            break;
        case 'B':
            printf("Good!\n");
            break;
        case 'C':
            printf("Average\n");
            break;
        case 'D':
            printf("Below Average\n");
            break;
        case 'F':
            printf("Fail\n");
            break;
        default:
            printf("Invalid grade\n");
            break;
    }
    
    return 0;
}

C switch statement with fall-through cases

#include <stdio.h>

int main() {
    int month = 3;
    
    switch (month) {
        case 12:
        case 1:
        case 2:
            printf("Winter\n");
            break;
        case 3:
        case 4:
        case 5:
            printf("Spring\n");
            break;
        case 6:
        case 7:
        case 8:
            printf("Summer\n");
            break;
        case 9:
        case 10:
        case 11:
            printf("Autumn\n");
            break;
        default:
            printf("Invalid month\n");
            break;
    }
    
    return 0;
}

C switch statement with enum values

#include <stdio.h>

enum Color { RED, GREEN, BLUE };

int main() {
    enum Color color = GREEN;
    
    switch (color) {
        case RED:
            printf("Color is red\n");
            break;
        case GREEN:
            printf("Color is green\n");
            break;
        case BLUE:
            printf("Color is blue\n");
            break;
        default:
            printf("Unknown color\n");
            break;
    }
    
    return 0;
}