#include <iostream>
using namespace std;

#include "Student.h"

int main()
{
 Student s1;
 Student s2( "David", "Goldschmidt", 660123456 );
 Student s3( "David", "Paterson", 123456789 );
 Student s4( "Eliot", "Spitzer", 234567890 );

 cout << s1 << '\n';
 cout << s2 << '\n';
 cout << s3 << '\n';
 cout << s4 << '\n';

 s3.add_grade( 60.0 );
 cout << s3 << ": avg is " << s3.get_gpa() << '\n';
 s3.add_grade( 70.0 );
 cout << s3 << ": avg is " << s3.get_gpa() << '\n';
 s3.add_grade( 80.0 );
 cout << s3 << ": avg is " << s3.get_gpa() << '\n';
 s3.add_grade( 90.0 );
 cout << s3 << ": avg is " << s3.get_gpa() << '\n';

 return 0;
}