Create a class student contains roll number, name and course as data member and

ID: 3694023 • Letter: C

Question

Create a class student contains roll number, name and course as data member and Input_student and display_student as member function. A derived class exam is created from the class student with publicly inherited. The derived class contains mark1, mark2, mark3 as marks of three subjects and input_marks and display_result as member function.

Each one of these classes should contain 2 constructors (default and argument constructors).

implement all the methods in implementations files

create a a cpp file with a main function to create 2 exam objects one using a default constructor and the other one using the argument constructor.

Test all of the methods.

Explanation / Answer

#include <iostream>

using namespace std;

class Student{

public:
    int roll_no;
    string name;
    string course;
    void Input_student(){
        cout<<"enter data of student"<<endl;
        cin>>roll_no;
        cin>>name;
        cin>>course;
    }
    void display_student(){
      cout<<"roll number of student is"<<" " <<roll_no<<endl;
      cout<<"name of student is"<<" " <<name<<endl;
      cout<<"course of student id "<<" " << course<<endl;
      }

};

class Exam : public Student{
int marks1;
int marks2;
int marks3;

public:
    void Input_result(){
    cout<<"enter marks in three subject"<<endl;
    cin>>marks1>>marks2>>marks3;
    }
    void Output_result(){
    cout<<"Name of student is "<<" "<<name<<endl;
    cout<<"roll number of student"<<" "<<roll_no<<endl;
    cout<<"course of student"<<" "<<course<<endl;
    cout<<"subject1"<<" "<<marks1<<endl;
    cout<<"subject2"<<" "<<marks2<<endl;
    cout<<"subject3"<<" "<<marks3<<endl;
    }
    };

int main()
{

    Exam ex[2];
    int i;
     for(i=0;i<2;i++){
        ex[i].Input_student();
        ex[i].Input_result();
     }
for(i=0;i<2;i++){
        ex[i].Output_result();

}
return 0;
}

sample output

enter data of student
123
ram
java
enter marks in three subject
45
67
88
enter data of student
234
shiva
data structure
enter marks in three subject
Name of student is ram
roll number of student 123
course of student java
shiva
data structure
enter marks in three subject
Name of student is ram
roll number of student 123
course of student java
subject1 45
subject2 67
subject3 88
Name of student is shiva
roll number of student 234
course of student data
subject1 0
subject2 0
subject3 0

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Create a class student contains roll number, name and course as data member and

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