Simple calculator using switch...case statement in C programming.

// Simple calculator using switch...case statement in C programming.

# include <stdio.h>
int main()
{
    char o;
    float a,b;
 
     printf("Enter operator either + or - or * or divide : ");
    scanf("%c",&o);
   
    printf("Enter First Value: ");
    scanf("%f",&a);
   
     printf("Enter Second  Value: ");
    scanf("%f",&b);
    switch(o) {
        case '+':
            printf("%.1f + %.1f = %.1f",a, b, a+b);
            break;
        case '-':
            printf("%.1f - %.1f = %.1f",a, b, a-b);
            break;
        case '*':
            printf("%.1f * %.1f = %.1f",a, b, a*b);
            break;
        case '/':
            printf("%.1f / %.1f = %.1f",a, b, a/b);
            break;
        default:
            printf("Error! operator is not correct");
            break;
    }
    return 0;
}

Output :