public static List <Student> CheckCriteriaName(List <Student> students, IStudent s)
{
List <Student> filterStudent = new List <Student>();
foreach (var student in students)
{
// change the object behaviour
// invoking the delegate ageLess21()
// successfully modified my internal function method
if (s.CheckCriteria(student))
{
filterStudent.Add(student);
}
}
return(filterStudent);
}