Calculator proramm in c++ simple code

Calculator proramm in c++ simple code


Make a four function calculator. Read in two numbers and a mathematical operator. Add the two numbers if the operator ‘+’ is entered. Subtract the two numbers if operator ‘-‘is entered and so on. Display the calculated result. If any character other than +,-,*, /is entered, display proper error message.

Algorithm

                       Step1:    Start

                       Step2:    Declare num1,num2,

                       Step3:    Declare character ( + , - , * , / )

                       Step4:    Input num1 & num2

                       Step5:    Input sign like ( + , - , * , / )

                       Step6:    Display Calculation 

                       Step7:    End

Code

# include <iostream>

using namespace std;

int main ()

{

            int num1,num2;

            char sign;

 cout<< "Enter 1st number="<<endl;

 cin>> num1;

 cout<<"Enter 2nd number="<<endl;

 cin>> num2;

 cout<< "Enter sign\n=";

 cin>>sign;

 if (sign=='+')

 {

             cout<<num1+num2<<endl;

 }

 else if (sign=='-')

 {

             cout<<num1-num2<<endl;

 }

 else if (sign=='*')

 {

             cout<< num1*num2<<endl;

 }

 else if (sign=='/')

 {

             cout<< num1/num2<<endl;

 }

 else

 {

             cout<<"You have enter an invalid sign"<<endl;

 }

 return 0;

}

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