Write a program that will ask the user to continuously enter a number until such time that the entered value is not a number.

Question

#include <iostream>
#include <iomanip>
using namespace std;

int main(){
int number;
int sum = 0;
int product = 1;
int loopcount = 0;
int totalnum = 0;

std:: cout << "Enter total of numbers you want to add or multiply" <<endl;
std:: cin>> std::setw(1) >> totalnum;
std::cin.clear();

std:: cout<< "Enter"<<totalnum<< "numbers to add or multiply: " << endl;

while (loopcount < totalnum){
std::cout << "Input a number or 'x' to stop: " << endl;
std::cin>> std::setw(1)>> number;
std::cin.ignore();
std::cin.clear();

sum+= number;
product*= number;

loopcount= loopcount + 1;

if ( !( cin >> std::setw(1)>> number ) ) {break;}

std::cin.clear();
std::cin.ignore(INT_MAX, '\n');
}
std:: cout<<"The sum is :" <<sum<<endl;
std:: cout<<"The product is :" <<product<<endl;
return 0;
}
I have run this code it reads the numbers and the sum and product is correct but the problem is It allows the user to input two numbers in every prompt

Answer 1

Found the problem

Answer 2

Ashlie Jane,
Add <climits> for the definition of INT_MAX.

Answer 3

while (true) {
std::cout << "Enter number: ";
cin >> num;
sum += num;
product *= num;
}

Answer 4

Saw the problem

Answer 5

Ashlie Jane In this if statement, you're again taking the input:
if ( !( cin >> std::setw(1)>> number ) ) {break;}

Answer 6

This program does the desired:
#include <iostream>
#include <iomanip>
using namespace std;

int main(){
int number;
int sum = 0;
int product = 1;
int loopcount = 0;
int totalnum = 0;

std:: cout << "Enter total of numbers you want to add or multiply"<<endl;
std:: cin>> std::setw(1) >> totalnum;
std::cin.clear();

std:: cout<< "Enter "<<totalnum<< " numbers to add or multiply: " << endl;

while (loopcount < totalnum){
std::cout << "Input a number or x to stop: " << endl;
std::cin >> std::setw(1) >> number;
std::cin.ignore();
std::cin.clear();

sum+= number;
product*= number;

loopcount= loopcount + 1;

if (number==((int)'x')) {
break;
}
}
std:: cout<<"The sum is : "<<sum<<endl;
std:: cout<<"The product is : "<<product<<endl;
return 0;
}

Answer 7

But if you exit with 'x', then it still prints the remaining "Enter a number: " statements, it just prints them

Answer 8

Thank you so much 💗

Answer 9

You're welcome

Answer 10

How about input validation ?
and also the limits
I have run this code and it reads the numbers on the first line entered by the user but the problem it allows you to input two numbers in every prompt what is the wrong with my codes?

Answer 11

How can I make the output of product = 0 when totalnum enter by user is 0 ?