In this program, we will learn to create a simple calculate in c programming using the switch case.
To create this program, you should have the Knowledge of the following C programming topics:
- C switch Statement
This program takes an arithmetic operator +,-,/,*, and two operands from the user. Then it performs the calculation on the two operands depending upon the operator entered by the user.
Simple Calculator using switch Case
For this C calculator program example, we used the Switch case to check which operand is inserted by the user. Next, based on the Operand result will display.
#include <stdio.h>
int main() {
char operator;
double first, second;
printf("Enter an operator (+, -, *,): ");
scanf("%c", &operator);
printf("Enter two operands: ");
scanf("%lf %lf", &first, &second);
switch (operator) {
case '+':
printf("%.1lf + %.1lf = %.1lf", first, second, first + second);
break;
case '-':
printf("%.1lf - %.1lf = %.1lf", first, second, first - second);
break;
case '/':
printf("%.1lf / %.1lf = %.1lf", first, second, first / second);
break;
case '*':
printf("%.1lf * %.1lf = %.1lf", first, second, first * second);
break;
// operator doesn't match any case constant
default:
printf("Error! operator is not correct");
}
return 0;
}