// setf.cpp -- use setf() to control formatting
#include <iostream>
using namespace std;

int main()
{
    int temperature = 63;

    cout << "Today's water temperature: ";
        cout.setf(ios_base::showpos);    // show plus sign
      cout << temperature << "\n";

        cout << "For our programming friends, that's\n";
    cout << hex << temperature << "\n"; // use hex
        cout.setf(ios::uppercase);    // use uppercase in hex
        cout.setf(ios::showbase);    // use 0X prefix for hex
    cout << "or\n";
        cout << temperature << "\n";
    cout << "How " << true << "!  oops -- How ";
    cout.setf(ios::boolalpha);
    cout << true << "!\n";

    return 0; 
}