$/*$

$*$ File: Roster.h

$*$

$*$ Purpose: This file gives the full definition of the class Roster.

$*/$

#ifndef $\_\_$CSCI$3110\_$ROSTER$\_\_$

#define $\_\_$CSCI$3110\_$ROSTER$\_\_$

#include

#include "student.h$"$

using namespace std;

class Roster

$\{$

public:

$//$ a value constructor, the parameter is the course name

$//$ Create an empty roster, i$.$e$.$ studentNum $=0$ for

$//$ a specific course

Roster$($string courseName$)$;

$//$ This function reads student information from a file

$//$ The parameter is a file name

$//$ post$-$condition:

$//$ students contains student information read from the file

$//$ studentNum is the number of students read from the file

void readStudentRecord$($string filename$)$;

$//$ This function returns the number of students in the class roster

$//$ post$-$condition: the studentNum value is returned

int GetStudentCount$()$ const;

$//$ This function determines whether there is a student with $"$id$"$ in the class roster

$//$ post$-$condition: if there is a student in class with this $"$id$",$ true is returned

$//$ Otherwise, false is returned

bool isValid$($string id$)$ const;

$//$ This function displays all the information of one student, one value per line

$//$ This function also displays the total score and letter grade of the student with the id given

$//$ pre$-$condition: a valid user id is provided

$//$ post$-$condition: All information of the student with the given id is displayed, one value per line with label

void ShowOneStudent$($string id$)$ const;

$//$ This function prints out all the information $($exclude total score and letter grade$)$ for

$//$ all the students in the class

$//$ The information is display in a table format, one student per row

friend ostream & operator$<<($ostream& os$,$ const Roster& oneClass$)$;

$//*****************************************$

$//$Add your functions here if necessary

$//*****************************************$

private:

static const int MAX$\_$NUM $=90$; $//$ The maximum # of students of a class

$//$ Class constant. All objects share the same copy

string courseName; $//$ THe name of the course

int studentNum; $//$ Actual Student #

Student students$[$MAX$\_$NUM$]$; $//$ The array of student objects

$\}$;

#endif