//----------------------------------------------------------------------------
#include <iostream.h>
#include <string.h>
#include <ctype.h>
#include "stringclass.h"
//----------------------------------------------------------------------------
int main(void) {

string NameString("Geoff Sutcliffe"),
//----Note these will be initialized to empty by default constructor
    InputString,
    AgeString;

//----Get input from user
cout << "Please guess the age of " << NameString << " : ";
cin >> InputString;

//----Check if an integer
if (InputString.CharsAreAll(isdigit))
    AgeString = InputString;
else AgeString = "unknown";

//----Add the age information to the name
NameString += " has age ";
NameString += AgeString;

//----Output the answer
cout << NameString << endl;

//----End program
return(0);
}
//----------------------------------------------------------------------------