Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question

Write a program that mimics a calculator. The program should take as input two integers and the operation to be performed. It should then output the numbers, the operator, and the result. For division, if the denominator is zero, output an appropriate message. Limit the supported operations to + -/ *and write an error message if the operator is not one of the supported operations. Here is some example output:

3 + 4 = 7

13 * 5 = 65

 

C++

Expert Solution
Check Mark
Step 1 : C++ Code

#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
char op;
int numb1;
int numb2;
cout <<"Please input two values that will be calculated: ";
cin >> numb1 >> numb2;
cout <<"Please input the operator that will be used: ";
cin >> op;
cout << fixed << showpoint << setprecision(2);
switch(op)
{
case '+':
cout << numb1 << " + " << numb2 << " = " << numb1 + numb2;
break;
case '-':
cout << numb1 << " - " << numb2 << " = " << numb1 - numb2;
break;
case '*':
cout << numb1 << " * " << numb2 << " = " << numb1 * numb2;
break;
case '/':
if (numb2 == 0)
cout <<"ERROR! Dividing by 0 isn't allowed!";
else
cout << numb1 << " / " << numb2 << " = " << numb1 / numb2;
break;
default:
cout <<"ERROR! The operator you have chosen is incorrect!";
break;
}
return 0;
}

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