Switch & Loop – Let us C

Do-While Loop Example

Pravesh Agrawal — Sat, 02 Dec 2023 10:59:07 +0000

#include 

int main() {
    // Using a do-while loop to print numbers from 1 to 5
    printf("Do-While Loop Example:\n");
    int i = 1;
    do {
        printf("%d\n", i);
        i++;
    } while (i <= 5);

    return 0;
}

While Loop Example

Pravesh Agrawal — Sat, 02 Dec 2023 10:58:41 +0000

#include 

int main() {
    // Using a while loop to print numbers from 1 to 5
    printf("While Loop Example:\n");
    int i = 1;
    while (i <= 5) {
        printf("%d\n", i);
        i++;
    }

    return 0;
}

For Loop Example

Pravesh Agrawal — Sat, 02 Dec 2023 10:58:01 +0000

#include 

int main() {
    // Using a for loop to print numbers from 1 to 5
    printf("For Loop Example:\n");
    for (int i = 1; i <= 5; i++) {
        printf("%d\n", i);
    }

    return 0;
}

Switch with C

Pravesh Agrawal — Sat, 02 Dec 2023 10:56:53 +0000

#include 

int main() {
    // Declare a variable
    char grade;

    // Prompt the user for input
    printf("Enter your grade (A, B, C, D, or F): ");

    // Read user input
    scanf(" %c", &grade); // Note the space before %c to consume any leading whitespace

    // Evaluate the grade using a switch statement
    switch (grade) {
        case 'A':
            printf("Excellent!\n");
            break;
        case 'B':
            printf("Good!\n");
            break;
        case 'C':
            printf("Satisfactory\n");
            break;
        case 'D':
            printf("Needs Improvement\n");
            break;
        case 'F':
            printf("Fail\n");
            break;
        default:
            printf("Invalid grade entered.\n");
    }

    return 0;
}