If you can help me?
I have some problems.I have to put the five marks in five subjects for a student.The student must have ID,Name ,Surname,Subject and Mark.

This we have to write in a file.Then we have to write in Screen the results(toread from file).After that I have to make the sort by the first letter of Name of student.At the end I Have to find the avarage mark of student.

All this work must be in fille and not to be stored in physical memory.

All is done in console application