C++ Program to Sort all characters inside the string

 #include <string>
   #include <iostream>
   #include <algorithm>
   using namespace std;
   int main()
   {
     const string hello("Hello, how are you?");
     string s(hello.begin(),hello.end());
     // iterate through all of the characters
     string::iterator pos;
     for (pos = s.begin(); pos != s.end(); ++pos)
     {
       cout << *pos;
     }
     cout << endl;
     sort (s.begin(), s.end());
     cout << "ordered: " << s << endl;
   }