Program to create the equivalent of a four-function calculator.The program requires the user to enter two numbers and an operator.It then carries out the specified arithmetic operation:addition,subtraction,multiplication or division of two numbers.Finally,it displays the result.

PROGRAM

Program to create the equivalent of a four-function calculator.The program requires the user to enter two numbers and an operator.It then carries out the specified arithmetic operation:addition,subtraction,multiplication or division of two numbers.Finally,it displays the result.

#include<iostream.h>
#include<conio.h>
#include<stdlib.h>
        int main()

        {
             system ("cls");
             char ch;
             float a,b,result;
            cout<<"Enter two numbers:";
            cin>>a>>b;
            cout<<"\n"<<"Enter the operator(+,-,*,/):";
             cin>>ch;
            cout<<"\n";
                if(ch=='+')
                    result=a+b;
               else if(ch=='-')
                    result=a-b;
               else if(ch=='*')
                    result=a*b;
               else if(ch=='/')
                     result=a/b;
                else
         {
               cout<<"\n"<<"Wrong operator!"<<"\n";
               goto lb;
          }
             cout<<"\n"<<"The calculated result is : "<<"\n"<<result<<"\n";
                lb:
                      getch();
                      return 0;

         }
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OUTPUT:
Enter two numbers:  9 9

Enter the operator(+,-,*,/):  *

The calculated result is : 81
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