Question

using Eclipse c++ Write a program that mimics a simple integer calculator using the switch statement. The program should prompt for two integer numbers and the operation to be performed as input. It should then output the numbers, the operator, and the results as illustrated below. Use a for loop to prompt the user for input seven times as illustrated below. Assume that the operands will always be valid integers. For division,the program should also output the remainder and check if the denominator is zero (and output an appropriate message). If the operation is not recognized, an appropriate message should be output. Note that the program should wait for input of the ENTER key after displaying the message “Press ENTER to continue . . .”Test the program thoroughly!

Screen INPUT/OUTPUT-should be formatted as follows –(Class heading should be also displayed)

Enter two integers: 10 5

Enter operator: + , -, * , / : +

10 + 5 = 15

Press ENTER to continue...

Enter two integers: 25 35

Enter operator: + , -, * , / : -

25 -35 = -10

Press ENTER to continue...

Enter two integers: -1-1

Enter operator: + , -, * , / : *

-1 * -1 = 1

Press ENTER to continue...

Enter two integers: 9 6

Enter operator: + , -, * , / : /

9 / 6 = 1R3

Press ENTER to continue...

Enter two integers: 0 1

Enter operator: + , -, * , / : /

0 / 1 = 0R0

Press ENTER to continue...

Enter two integers: 1 0

Enter operator: + , -, * , / : /

1 / 0 = ERROR

Press ENTER to continue...

Enter two integers: 2 4

Enter operator: + , -, * , / : !

2 ! 4 = ILLEGAL

Press ENTER to continue...

Answer 1

Solution(calc.cpp):

#include<iostream>
using namespace std;
int main()
{
   int a,b,result,rem,i;
   char op;
  
   for(i=1;i<=7;i++){
   cout<<"Enter two integers: ";
   cin>>a>>b;
   cout<<"Enter operator: + , -, * , / : ";
   cin>>op;
  
   switch(op)
   {
       case '+':result=a+b;break;
       case '-':result=a-b;break;  
       case '*':result=a*b;break;
       case '/':
       {
           if(b==0)
               cout<<a<<" / "<<b<<" = ERROR"<<endl;
           else
           {
               result=a/b;
               rem=a%b;
               cout<<a<<" / "<<b<<" = "<<result<<"R"<<rem<<endl;
           }
       }break;
       default:cout<<a<<" ! "<<b<<" = ILLEGAL"<<endl;  
   }
   if(op=='+' || op=='-' || op=='*')
       cout<<a<<" "<<op<<" "<<b<<" = "<<result<<endl;
  
   cout<<"Press ENTER to continue...";
   cin.ignore();
   cin.get();  
   }

   return 0;
}

Output: