Question

Files given in this assignment (right-click on the file to download)

• Assignment7.cpp (need to complete)

• Student.h (Given. Just use it, don't change it!)

• Student.cpp (Partially filled, need to complete)

1. Assignment description

In this assignment, you will write a simple class roster management system for ASU CSE100.

Step #1: First, you will need to finish the design of class Student. See the following UML diagram for Student class, the relevant header file (class declaration) is given to you as Student.h, according to it, finish the Student.cpp file (class definition). Review the lecture notes on class declaration and definition if you forgot how to do it.

Student

-id: string -name: string -gpa: double

+Student() +Student(string, string,double) +getID(): string +getName(): string +getGPA(): double +setID(string): void +changeName(string): void +changeGPA(double): void +toString(): string

Step #2. After you complete Student.cpp, assume you're the instructor of CSE100, you have the authority to search, check or update a student's profile. You are given a skeleton of a driver's program called Assignment7.cppthat will used the above defined Student class. //---- is where you will need to fill in your own codes according to the instructions. The Assignment7.cpp contains the main() and multiple other functions inside. Below please find each function's description, you are requried to design at least these functions, feel free to add any other functions if you find it's necessary and easier for you to finish the assignment.

Function	Function's Description
int getStudentData(Student anArray[MAX])	This is the function we used to read in students' data from a text file and store it inside anArray that contains MAX number of Student objects. This function returns the actual number of students we read in from the text file. Inside the body of the function, make sure to prompt to let user enter the text file's name as follows: cout << "Please enter the file name where I will read the data from: "; cin >> fileName; Hint: each line of the input file represents one student's info, it contains a student's ID, name and gpa. After read in one student's data, call Student class constructor to create one Student object, then store it inside anArray.
int getChoice()	This function inputs, validates, and returns user's choice. User's choice is an integer and should range from 1 to 8. Inside this funciton you will need to implement a validation loop. See below displayMenu( ) for user choice.
void displayMenu()	This function is given to you and it will display the following menu on screen: ******CSE100 Course Management System******* 1 - Search by ID 2 - Search by name 3 - Change a student name 4 - Modify a student gpa 5 - Display award list 6 - Compute average gpa 7 - Display class roster 8 - Quit
int searchByID(Student aClassroster[], int size, string id)	This function corresponds to above menu option #1 - Search by ID. Given an array of Student called aClassroster and its size, we will search whether the given student id is inside the array or not, if it's inside, return its index, otherwise return -1. (Hint: this is actually a linear search on id, check our lecture notes on linear search)
int searchByName(Student aClassroster[], int size, string name)	This function corresponds to above menu option #2 - Search by name. Given an array of Student called aClassroster and its size, we will search whether the given student name is inside the array or not, if it's inside, return its index, otherwise return -1.
bool changeStudentName(Student aClassroster[], int size, string oldName, string newName)	This function corresponds to above menu option #3 - Change a student name. Given an array of Student called aClassroster and its size, we will search whether the given student oldName is inside the array or not, if it's inside, we will change/replace it by the corresponding newName and returns true; otherwise the function should return false. (Hint: this function should call searchByName( ) )
bool modifyStudentGPA(Student aClassroster[], int size, string id, double newGpa)	This function corresponds to above menu option #4 - Modify a student gpa. Given an array of Student called aClassroster and its size, we will search whether the given student id is inside the array or not, if it's inside, we will change/update the corresponding student's gpa by the newGpa and returns true; otherwise the function should return false. (Hint: this function should call searchByID( ) )
void displayAwardList(Student aClassroster[], int size, string awardType)	This function corresponds to above menu option #5 - Display award list. Given an array of Student called aClassroster and its size, also a string awardType, if awardType equals "P" (which represents the President's Award), all students' info. whose gpa >= 3.75 should be displayed on screen; if  awardType equals "D" (which represents the Dean's Award), all students' info. whose gpa >= 3.5 should be displayed on screen.
double computeAverageGPA(Student aClassroster[], int size)	This function corresponds to above menu option #6 - Compute average gpa. Given an array of Student called aClassroster and its size, this function returns the average gpa of all students in aClassroster.
void displayClassRoster(Student aClassroster[], int size)	This function corresponds to above menu option #7 - Display class roster. Given an array of Student called aClassroster and its size, this function display all students' info. on screen. (Check sample run for output format)

Step #3. After you finish designing above functions, next you will need to finish the main() function. The main() function uses a do..while loop and will display the following menu on screen:

******CSE100 Course Management System*******
1 - Search by ID
2 - Search by name
3 - Change a student name
4 - Modify a student gpa
5 - Display award list
6 - Compute average gpa
7 - Display class roster
8 - Quit

Then the program will ask “Pick from above menu: ”, user will type in an integer of their menu choice, the program then proceed to the relevant part accordingly. The skeleton of the program is given to you, you will need to fill in what has been left.

//************************************************
// FILE: Student.h

#ifndef STUDENT_H
#define STUDENT_H

#include 

using namespace std;

class Student
{
    private:
        string id;
        string name;
        double gpa;
    public:
        Student();                       //default constructor
        Student(string, string, double); //overloadded constructor
        string getID();             //accessor for id
        void setID(string);         //mutator for id
        string getName();           //accessor for name
        void changeName(string);    //mutator for name
        double getGPA();           //accessor for gpa
        void changeGPA(double);   //mutator for gpa
        string toString();
};

#endif

//************************************************
// FILE: Student.cpp

//include the header file
//----
#include 
#include 
#include 

//The default constructor
Student::Student()
{
    id = "?";
    name = "?";
    gpa = 0.0;
}

//The overloadded constructor
Student::Student(string newID, string newName, double newGpa)
{
   id = newID;
   name = newName;
   gpa = newGpa;
}

//accessors & mutators for instance variable 'id'
string Student::getID()
{
    return id;
}

void Student::setID(string newID)
{
        id = newID;
}

//***************************************************************
//Check the header file and finish the remaining functions below

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
_________________

// StudentsInfo.txt

111 Sachin 3.6
222 Simkox 3.8
333 Pointing 4.0
444 Rahul 3.2
555 James 3.0

____________________

// Student.h

#ifndef STUDENT_H
#define STUDENT_H
#include <string>
class Student
{
public:
Student();
Student(string ,string ,double);
string getID();
string getName();
void changeName(string);
double getGPA();
void changeGPA(double);
string toString();
  
private:
// Declaring variables
string id;
string name;
double gpa;

};
#endif

___________________________

// Student.cpp

#include <iostream>
#include <sstream>
#include <iomanip>
#include <string>
using namespace std;
#include "Student.h"

Student::Student()
{
id="?";
name="?";
gpa=0.0;
}
Student::Student(string id,string name,double gpa)
{
this->id=id;
this->name=name;
this->gpa=gpa;
}
string Student::getID()
{
return id;
}
string Student::getName()
{
return name;
}
void Student::changeName(string name)
{
this->name=name;
}
double Student::getGPA()
{
return gpa;
}
void Student::changeGPA(double gpa)
{
this->gpa=gpa;
}
string Student::toString()
{
stringstream ss;
  
ss << "ID: " << id << endl;
ss << "Name: " << name << endl;
ss << "GPA :" << gpa << endl;
return ss.str();
}
  

_________________________

// main.cpp

#include <iostream>
#include <fstream>
using namespace std;
#include "Student.h"

const int MAX=100;

int getStudentData(Student anArray[MAX]);
void displayMenu();
int getChoice();
int searchByID(Student aClassroster[], int size, string id);
int searchByName(Student aClassroster[], int size, string name);
bool changeStudentName(Student aClassroster[], int size, string oldName, string newName);
bool modifyStudentGPA(Student aClassroster[], int size, string id, double newGpa);
void displayAwardList(Student aClassroster[], int size, string awardType);
void displayClassRoster(Student aClassroster[], int size);
double computeAverageGPA(Student aClassroster[], int size);
int main()
{
  
string id;
int indx;
bool b;
string searchName;
Student anArray[MAX];
string oldName,newName;
int cnt=getStudentData(anArray);
while(true)
{
displayMenu();
int choice=getChoice();
switch(choice)
{
case 1:{

cout<<"Enter Student ID to Search :";
cin>>id;
int indx=searchByID(anArray,cnt,id);
if(indx==-1)
{
cout<<"Student Not Found"<<endl;
}
else
{
cout<<"Student is found at index "<<indx<<endl;
}
continue;
}   
case 2:{
cout<<"Enter Student name to Search :";
cin>>searchName;
indx=searchByName(anArray,cnt,searchName);
if(indx!=-1)
{
cout<<"Student is found at index "<<indx<<endl;
}
else
{

cout<<"Student Not Found"<<endl;
}
continue;
}   
case 3:{
cout<<"Enter Student old name you want to search with :";
cin>>oldName;
cout<<"Enter Student new name you want to replace with :";
cin>>newName;
bool b=changeStudentName(anArray,cnt,oldName,newName);
if(b)
{
cout<<"Student name is Successfully replaced"<<endl;
}
else
{
cout<<"Student name not found"<<endl;   
}
continue;
}   
case 4:{
double newGpa;
cout<<"Enter Student Id to search for :";
cin>>id;
cout<<"Enter New GPA :";
cin>>newGpa;
b=modifyStudentGPA(anArray,cnt,id,newGpa);
if(b)
{
cout<<"Student GPA is Successfully replaced"<<endl;
}
else
{
cout<<"Student name not found"<<endl;   
}
continue;
}   
case 5:{
string awardType;
cout<<"Enter award type :";
cin>>awardType;
displayAwardList(anArray,cnt,awardType);
continue;
}   
case 6:{
double avgGPA=computeAverageGPA(anArray,cnt);
cout<<"Average GPA :"<<avgGPA<<endl;
continue;
}   
case 7:{
displayClassRoster(anArray,cnt);
continue;
}   
case 8:{
cout<<":: PROGRAM EXIT ::"<<endl;
break;
}   
}
break;
}

  
  
  

  
  
  
return 0;
}
int getStudentData(Student anArray[MAX])
{
string id;
int cnt=0;
string name;
double gpa;
  
//defines an input stream for the data file  
ifstream dataIn;
//Opening the input file
dataIn.open("studentsInfo.txt");   
//checking whether the file name is valid or not
if(dataIn.fail())
{
   cout<<"** File Not Found **";
return 1;
}
else
{
while(dataIn>>id>>name>>gpa)
{
Student s(id,name,gpa);
anArray[cnt]=s;
cnt++;
}
dataIn.close();
}
return cnt;
}
void displayMenu()
{
cout<<"\n******CSE100 Course Management System*******"<<endl;
cout<<"1 - Search by ID"<<endl;
cout<<"2 - Search by name"<<endl;
cout<<"3 - Change a student name"<<endl;
cout<<"4 - Modify a student gpa"<<endl;
cout<<"5 - Display award list"<<endl;
cout<<"6 - Compute average gpa"<<endl;
cout<<"7 - Display class roster"<<endl;
cout<<"8 - Quit"<<endl;
}
int getChoice()
{
int choice;
while(true)
{
cout<<"Enter Choice :";
cin>>choice;
if(choice<1 || choice>8)
{
cout<<"** Invalid.Must be between 1-8 **"<<endl;
}
else{
break;
}
}
  
return choice;
}
int searchByID(Student aClassroster[], int size, string id)
{

for(int i=0;i<size;i++)
{
if(aClassroster[i].getID().compare(id)==0)
return i;
}   
return -1;
}
int searchByName(Student aClassroster[], int size, string name)
{
for(int i=0;i<size;i++)
{
if(aClassroster[i].getName().compare(name)==0)
return i;
}
return -1;
}
bool changeStudentName(Student aClassroster[], int size, string oldName, string newName)
{
int idx=searchByName(aClassroster,size,oldName);
if(idx==-1)
return false;
else
{
aClassroster[idx].changeName(newName);
return true;
}
}
bool modifyStudentGPA(Student aClassroster[], int size, string id, double newGpa)
{
int idx=searchByID(aClassroster,size,id);
if(idx==-1)
{
return false;
}
else
{
aClassroster[idx].changeGPA(newGpa);
return true;
}
}
void displayAwardList(Student aClassroster[], int size, string awardType)
{
if(awardType.compare("P")==0)
{
for(int i=0;i<size;i++)
{
if(aClassroster[i].getGPA()>=3.75)
{
cout<<aClassroster[i].toString();
cout<<"-------------------------"<<endl;
  
}
}
}
else if(awardType.compare("D")==0)
{
for(int i=0;i<size;i++)
{
if(aClassroster[i].getGPA()>=3.5)
{
cout<<aClassroster[i].toString();
cout<<"-------------------------"<<endl;
}
}
}
}
void displayClassRoster(Student aClassroster[], int size)
{
cout<<"\nDisplaying all Students Info :"<<endl;
for(int i=0;i<size;i++)
{
cout<<aClassroster[i].toString();
cout<<"-------------------------"<<endl;
}
}
double computeAverageGPA(Student aClassroster[], int size)
{
double sum=0;
for(int i=0;i<size;i++)
{
sum+=aClassroster[i].getGPA();
}
return sum/size;
}

__________________________

Output:

_______________Could you plz rate me well.Thank You