Mega Code Archive
Read a string from keyboard and decide if to exit a while loop
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#include <iostream>
#include <string>
using namespace std;
class Product
{
public:
Product();
void read();
bool is_better_than(Product b) const;
void print() const;
private:
string name;
double price;
int score;
};
Product::Product()
{
price = 1;
score = 0;
}
void Product::read()
{
cout << "Please enter the model name: ";
getline(cin, name);
cout << "Please enter the price: ";
cin >> price;
cout << "Please enter the score: ";
cin >> score;
string remainder; /* read remainder of line */
getline(cin, remainder);
}
bool Product::is_better_than(Product b) const
{
if (b.price == 0) return false;
if (price == 0) return true;
return score / price > b.score / b.price;
}
void Product::print() const
{
cout << name
<< " Price: " << price
<< " Score: " << score << "\n";
}
int main()
{
Product best;
bool more = true;
while (more)
{
Product next;
next.read();
if (next.is_better_than(best)) best = next;
cout << "More data? (y/n) ";
string answer;
getline(cin, answer);
if (answer != "y") more = false;
}
cout << "The best value is ";
best.print();
return 0;
}
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