C++ Program On Inheritance-Accept Details Of A Student & Print Marks Percentage.

This is a sample C++ Program. using inheritance. Using Inheritance, this program accepts details of a student and print marks and percentage using inheritance.


#include <iostream.h>
#include <conio.h>

class person
{
    private:
        char name [20];
        long int phone;
    public:
        void read ( )
           {
               cout << "Enter Name & Phone Number ";
               cin >> name >> phone;
           }

        void show ( )
           {
               cout << "\n Name Is: " << name;
               cout << "\n Phone Number Is: " << phone;
           }
};

class student : public person
{
    private:
         int rollno;
         char course [20];
    public:
         void read ( )
           {
               person :: read ( );
               cout << "Enter The Roll Number & Course Name ";
               cin >> rollno >> course;
           }

         void show ( )
           {
               person :: show ( );
               cout << "\n Roll Number Is: " << rollno;
               cout << "\n Course Is: " << course;
           }
};

class exam : public student
{
    private:
         int m [4];
         double per;
    public:
         void read ( );
         void cal ( );
         void show ( );
};

void exam :: read ( )
{
    student :: read ( );
    cout << "Enter Marks: ";
    for (int i = 0; i < 4; i++)
         cin >> m [i];
}

void exam :: cal ( )
{
    int tot_marks = 0;
    for (int i = 0; i < 4; i++)
         tot_marks+= m [i];
    per = double (tot_marks) / 4;
}

void exam :: show ( )
{
    student :: show ( );
    cout << "\n Marks: ";
    for (int i = 0; i < 4; i++)
         cout << m [i] << "\t";
    cout <<"\n Percentage Is: " << per;
}

int main ( )
{
    clrscr ( );
    exam e1;
    e1.read ( );
    e1.cal ( );
    e1.show ( );
    getch ( );
    return 0;
}


OUTPUT:

Enter Name & Phone Number
Naina
256552

Enter The Roll Number & Course Name
33
Law

Enter Marks:
99
90
95
94

Name Is: Naina
Phone Number is: 256552
Roll Number Is: 33
Course Is: Law
Marks : 99 90 95 94
Percentage = 94.5