.Write a C program that prompts a user for two integers and the appropriate operator(i.e. +,-,/,*) then uses switch case to determine the appropriate operation.
Question
.Write a C program that prompts a user for two integers and the appropriate operator(i.e. +,-,/,*) then uses switch case to determine the appropriate operation.
Solution
Sure, here is a simple C program that does what you asked for:
#include <stdio.h>
int main() {
int num1, num2;
char operator;
printf("Enter first number: ");
scanf("%d", &num1);
printf("Enter an operator (+, -, *, /): ");
scanf(" %c", &operator);
printf("Enter second number: ");
scanf("%d", &num2);
switch(operator) {
case '+':
printf("%d %c %d = %d\n", num1, operator, num2, num1 + num2);
break;
case '-':
printf("%d %c %d = %d\n", num1, operator, num2, num1 - num2);
break;
case '*':
printf("%d %c %d = %d\n", num1, operator, num2, num1 * num2);
break;
case '/':
if(num2 != 0)
printf("%d %c %d = %.2f\n", num1, operator, num2, (float)num1 / num2);
else
printf("Error! Division by zero is not allowed.\n");
break;
default:
printf("Error! Invalid operator.\n");
}
return 0;
}
This program first prompts the user for two integers and an operator. It then uses a switch case to determine which operation to perform based on the operator entered by the user. The result of the operation is then printed to the console. If the user tries to divide by zero or enters an invalid operator, an error message is printed.
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