#include #include #include #include // needed for setw() using namespace std; int main() { int someNumber = 1234; cout << someNumber << endl; cout.setf(ios::dec); cout << someNumber << endl; cout.unsetf(ios::dec); cout.setf(ios::oct); cout << someNumber << endl; cout.unsetf(ios::oct); cout.setf(ios::hex|ios::uppercase); cout << someNumber << endl; cout.unsetf(ios::hex); cout.setf(ios::uppercase); cout << "hello" << endl; return 0; }