Please write in C++ Create a class with the name \"Student\". private data membe

Question

Please write in C++

Create a class with the name "Student".

private data members of the Student class should include:

int - rollno (roll number or id number of student)

string - name (name of student)

int - alg, datastruct, architect, proglang (hold scores out of 100 for these 4 classes)

float - per (average score of 4 classes above)

char - grade (letter grade based on per.. example 90 is an A)

public member functions of the Student class should include:

getdata() (function to accept data from user

showdata() (function to show data on screen

Create a constructor that initializes all int to 0, float to 0.0, char to ' ', name = "NoName".

Prompt the user for a valid class size.

Prompt the user for student data.

Store students in a vector.

Display student data including students average score and letter grade.

The following is an example:

This should be done in C++

Explanation / Answer

#include <iostream>
#include <vector>
#include <cstring>
using namespace std;

class Student
{
    private:
    int rollno;
    string name;
    int alg,datastruct, architect, proglang;
    float per;
    char grade;
  
    public:
  
    Student()   //default constructor
    {
    rollno = 0;
    name = "NoName";
    alg=datastruct=architect=proglang= 0;
    per = 0.0;
    grade = ' ';
    }
  
    void getdata()   //input student data
    {
    cout<<" Enter the roll number of student: ";
    cin>>rollno;
  
     cin.ignore(); //to take care of character arrays
    cout<<" Enter The Name of student: ";
    getline(cin,name);
  
    cout<<" Enter the grade in Algorithms out of 100: ";
    cin>>alg;
    cout<<" Enter the grade in Data Structures out of 100: ";
    cin>>datastruct;
    cout<<" Enter the grade in Architecture out of 100: ";
    cin>>architect;
    cout<<" Enter the grade in Programming Languages out of 100: ";
    cin>>proglang;
    }
  
  
    void showdata() //display student data
    {
    cout<<" Roll number of student: "<<rollno;
    cout<<" Name of student: "<<name;
    cout<<" Grade in Algorithms: "<<alg;
    cout<<" Grade in Data Structures: "<<datastruct;
    cout<<" Grade in Architecture: "<<architect;
    cout<<" Grade in Programming Languages: "<<proglang;
    int per = (alg+datastruct+architect+proglang)/4; //calculate percentage
  
    //calculate Grade
    if(per > 80 && per <= 100)
    grade = 'A';
    else if(per > 60 && per <= 80)
    grade = 'B';
    else if(per > 40 && per <= 60)
    grade = 'C';
    else if(per > 0 && per <= 40)
    grade = 'F';
  
    cout<<" Percentage of student is: "<<per;
    cout<<" Grade of student is: "<<grade;
    }
  
  
  
      
};

int main()
{

vector<Student> list; //declare vector list of type Student
int i,n;
Student *s; //pointer to student object

cout<<"Enter size of class: ";
cin>>n;

if(n<=0)
{
cout<<" Invalid class size";

cout<<" Enter size of class: ";
cin>>n;
}

for(i=0;i<n;i++)
{

s = new Student;
s->getdata();
list.push_back(*s);   // push each object into the list
}
// setup an iterator loop through the vector
       vector<Student>::iterator it;
  
       for ( it = list.begin(); it != list.end(); ++it ) {
          // For each Student, print out his info
          it->showdata();
       }
   return 0;
}

output:

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