Write a C++ program to create a 4-function calculator.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question

Write a C++ program to create a 4-function calculator.

 
A sample run is shown here:
: 10
: 2
: /
-1
-5
: 2.2
: +
-2.8
: 4
: 5
: 6
: +
11
: +
15
Transcribed Image Text:A sample run is shown here: : 10 : 2 : / -1 -5 : 2.2 : + -2.8 : 4 : 5 : 6 : + 11 : + 15
Expert Solution
Step 1

 those two operands depending upon the operator entered by the user.

 

Example: Simple Calculator using switch statement

# include <iostream>

using namespace std;

int main()

{

char op;

float num1, num2;

cout << "Enter operator: +, -, *, /: ";

cin >> op;

cout << "Enter two operands: ";

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:

// If the operator is other than +, -, * or /, error message is shown cout << "Error! operator is not correct";

break;

}

return 0;

}

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