Write a C++ program that mimics a calculator. The program should prompt the user

Question

Write a C++ program that mimics a calculator. The program should prompt the user and take as input a number, an operator such as + , - , / , * followed by a second number. It then should output the first number, the operator, the second number and the results. Check to make sure division by zero is not performed by your program. Some sample /input output are as follows:

Input Output
1 + 5 1 + 5 = 6
1 - 9 1 – 9 = -8
10 / 3 3.33
1 / 0 Error – division by zero
2 * 100 2 * 100 = 200
2 % 20 Try again
2 Q 1 Exit program

Your program must make use of if-else, while loop, and switch control structures.

Explanation / Answer

please rate - thanks #include <iostream>
#include <string.h>              
using namespace std;
int main()                      
{
         char oper;
         int var1 = 0, var2 = 0;
        while(true)
         {cout<<"enter variable1 operation variable 2 (ex 1 + 2) ";
          cin>>var1;
         cin>>oper;
         cin>>var2;
         cout<<var1<<oper<<var2<<" = ";     
         switch(oper)
         {case '+':cout<<var1+var2;
                   break;
          case '-':cout<<var1-var2;
                   break;
          case '*':cout<<var1*var2;
                   break;
          case '%':if(var2>var1)
                      cout<<"Try again";
                    else
                      cout<<var1%var2;
                   break;
           case '/':if(var2==0)
                      cout<<"Error-division by zero";
                    else
                      cout<<(double)var1/var2;
                   break;
            case 'q':
            case 'Q': return 0;
          default: cout<<"Invalid operator";
        
          }
          cout<<endl;
          }
              
               
}

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