private static IEnumerable<Student> FirstNameBeforeLast(Student[] students)
{
IEnumerable<Student> result =
from student in students
where student.FirstName.CompareTo(student.LastName) < 0
select student;
return result;
}
private static IEnumerable<Student> FindPeopleAtCertainAge(Student[] students, int startAge, int endAge)
{
IEnumerable<Student> result =
from student in students
where student.Age >= startAge && student.Age <= endAge
select student;
return result;
}
