Simple Calculator Using Switch Statement

Introduction

• In this blog, I am going to explain how to do simple calculations by using a calculator. 

Software Requirements

• Turbo C++ or C. 

Programming

#include < stdio.h >
int main()
{
    char operator;
    double firstNumber, secondNumber;
    printf("Enter an operator (+, -, *,): ");
    scanf("%c", & operator);
    printf("Enter two operands: ");
    scanf("%lf %lf", & firstNumber, & secondNumber);
    switch (operator)
    {
        case '+':
            printf("%.1lf + %.1lf = %.1lf", firstNumber, secondNumber, firstNumber + secondNumber);
            break;
        case '-':
            printf("%.1lf - %.1lf = %.1lf", firstNumber, secondNumber, firstNumber - secondNumber);
            break;
        case '*':
            printf("%.1lf * %.1lf = %.1lf", firstNumber, secondNumber, firstNumber * secondNumber);
            break;
        case '/':
            printf("%.1lf / %.1lf = %.1lf", firstNumber, secondNumber, firstNumber / firstNumber);
            break;
        default:
            printf("Error! operator is not correct");
    }
    return 0;
}

Explanation

• By the programming given above, the calculations of addition, subtraction, multiplication and division can be done and explained in a simple manner.
  
   
  
  
  

Output


 

Conclusion: Thus the simple calculator can get created successfully.