Menu-Driven program using Switch-case in C
Prerequisite : Switch Case in C
Problem Statement:
Write a menu-driven program using Switch case to calculate the following:
1. Area of circle
2. Area of square
3. Area of sphere
Also use functions input() and output() to input and display respective values.
// C program to illustrate // Menu-Driven program // using Switch-case #include <stdio.h> int input(); void output(float); int main() { float result; int choice, num; printf("Press 1 to calculate area of circle\n"); printf("Press 2 to calculate area of square\n"); printf("Press 3 to calculate area of sphere\n"); printf("Enter your choice:\n"); choice = input(); switch (choice) { case 1: { printf("Enter radius:\n"); num = input(); result = 3.14 * num * num; printf("Area of sphere="); output(result); break; } case 2: { printf("Enter side of square:\n"); num = input(); result = num * num; printf("Area of square="); output(result); break; } case 3: { printf("Enter radius:\n"); num = input(); result = 4 * (3.14 * num * num); printf("Area of sphere="); output(result); break; } default: printf("wrong Input\n"); } return 0; } int input() { int number; scanf("%d", &number); return (number); } void output(float number) { printf("%f", number); } |
Output:
Press 1 to calculate area of circle Press 2 to calculate area of square Press 3 to calculate area of sphere Enter your choice: 1 Enter radius: 5 Area of circle=78.5
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