[Solved] Compiling Issue with C++ [closed]

by


U made some mistakes here :

  • You have to write your entire main code inside int main()
  • syntax for using cin is cin >> not cin <<
  • You dont need to put char before calavg.str() because it’s already declared as stringstream
  • Do not use using namespace std. It is a bad practice that could cause a library conflict Why is “using namespace std” considered bad practice?

Code : 

#include <iostream>
#include <string>
#include <sstream>

int main()
{
    std::cout << "SP2019_Aaron Key - OUTPUT OF USING VARIABLES" << std::endl;
    //declares string variable "Word"
    char Word;
    //Prompts user for word:
    std::cout << "Word: ";
    //Waits for input for value of "Word" from standard input (keyboard)
    std::cin >> Word;

    //Declares integer variable "FirstNumber"
    double FirstNumber;
    //Prompts user for a number:
    std::cout << "First Number: ";
    //Waits for number:
    std::cin >> FirstNumber;

    //Declares double variable "SecondNumber":
    double SecondNumber;
    //Prompts user for a number:
    std::cout << "Second Number: ";
    //Waits for input:
    std::cin >> SecondNumber;

    //Adds FirstNumber and SecondNumber:
    double SUM = FirstNumber + SecondNumber;
    //Calculates Average of FirstNumber and SecondNumber:
    double Avg = SUM / 2;


    //Gives the average of FirstNumber and SecondNumber:
    std::stringstream calavg;
    calavg << "The average of " << FirstNumber << " and " << SecondNumber 
    << " is: " << Avg;
    std::cout <<  calavg.str();

    return 0;
}

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solved Compiling Issue with C++ [closed]