Write a menu driven program to calculate square root or cube root of a number depending upon the user's choice by using switch-case statement
Answers
Explanation:
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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