Question

YOU NEED TO DESIGN A CALCULATOR THAT Perform four bssic arithmetic operations.it then displays list of arithmetic operatios.the uset select one operation&the program displays the result of corresponding opperation.

Answer 1

// C++ program to make a simple calculator to Add, Subtract,

// Multiply or Divide using switch...case statement

#include <iostream>

using namespace std;

int main() {

char op;

float num1, num2;

cout << "Enter an arithemetic operator(+ - * /)\n";

cin >> op;

cout << "Enter two numbers as operands\n";

cin >> num1 >> num2;

switch(op) {

case '+':

cout << num1 << " + " << num2 << " = " << num1+num2;

break;

case '-':

cout << num1 << " - " << num2 << " = " << num1+num2;

break;

case '*':

cout << num1 << " * " << num2 << " = " << num1*num2;

break;

case '/':

cout << num1 << " / " << num2 << " = " << num1/num2;

break;

default:

printf("ERROR: Unsupported Operation");

}

return 0;

}

Output

Enter an arithemetic operator(+ - * /)

+

Enter two numbers as operands

2 8

2 + 8 = 10

Enter an arithemetic operator(+ - * /)

*

Enter two numbers as operands

3 7

3 * 7 = 21

In above program, we first take an arithmetic operator as input from user and store it in a character variable op. Our calculator program only support four basic arithmetic operators, Addition(+), Subtraction(-), Multiplication(*) and Division(/). Then we take two integers operands as input from user and store it in variable num1 and num2