C++ Program to enter Student details using Hierarchical Inheritance

Hierarchical Inheritance

• When two or more classes are derived from a single base  class, then Inheritance is called the hierarchical inheritance. The representation of the hierarchical inheritance is shown in the following Example:
• Student is a base class, from which the three classes viz. arts, science and commerce have been derived. Now, let us write a program that illustrates the hierarchical inheritance, based on the above design.

Below is the source code for C++ Program to enter Student details using Hierarchical Inheritance which is successfully compiled and run on Windows System to produce desired output as shown below :

SOURCE CODE : :

/*  C++ Program to enter Student details using Hierarchical Inheritance */

#include<iostream>
using namespace std;

const int len = 20 ;

class student  //  Base class
{
        public:
            char F_name[len];
        char L_name[len];
            int age;
        int roll_no ;
                void Enter_data(void)
                {
                        cout << "\n\t Enter the first name: " ; cin >> F_name ;
                        cout << "\t Enter the second name: "; cin >> L_name ;
                        cout << "\t Enter the age: " ; cin >> age ;
                        cout << "\t Enter the roll_no: " ; cin >> roll_no ;
                }
                void Display_data(void)
                {
                        cout << "\n\t First Name = " << F_name ;
                        cout << "\n\t Last Name = " << L_name ;
                        cout << "\n\t Age = " << age ;
                        cout << "\n\t Roll Number = " << roll_no ;
                }
};

class arts : public student
{
        private:
                char asub1[len] ;
                char asub2[len] ;
                char asub3[len] ;
        public:
                void Enter_data(void)
                {
                        student :: Enter_data( );
                        cout << "\t  Enter the subject1 of the arts student: "; cin >> asub1 ;
                        cout << "\t  Enter the subject2 of the arts student: "; cin >> asub2 ;
                        cout << "\t  Enter the subject3 of the arts student: "; cin >> asub3 ;
                }
                void Display_data(void)
                {
                        student :: Display_data( );
                        cout << "\n\t Subject1 of the arts student = " << asub1 ;
                        cout << "\n\t Subject2 of the arts student = " << asub2 ;
                        cout << "\n\t Subject3 of the arts student = " << asub3 ;
                }
};

class science : public student
{
        private:
                char ssub1[len] ;
                char ssub2[len] ;
                char ssub3[len] ;
        public:
                void Enter_data(void)
                {
                        student :: Enter_data( );
                        cout << "\t Enter the subject1 of the science student: "; cin >> ssub1;
                        cout << "\t Enter the subject2 of the science student: "; cin >> ssub2;
                        cout << "\t Enter the subject3 of the science student: "; cin >> ssub3;
                }
                void Display_data(void)
                {
                        student :: Display_data( );
                        cout << "\n\t Subject1 of the science student = " << ssub1 ;
                        cout << "\n\t Subject2 of the science student = " << ssub2 ;
                        cout << "\n\t Subject3 of the science student = " << ssub3 ;
                }
};

class commerce : public student
{
        private:   char csub1[len], csub2[len], csub3[len] ;
        public:
                void Enter_data(void)
                {
                        student :: Enter_data( );
                        cout << "\t Enter the subject1 of the commerce student: ";
                        cin >> csub1;
                        cout << "\t Enter the subject2 of the commerce student: ";
                        cin >> csub2 ;
                        cout << "\t Enter the subject3 of the commerce student: ";
                        cin >> csub3 ;
                }
                void Display_data(void)
                {
                        student :: Display_data( );
                        cout << "\n\t Subject1 of the commerce student = " << csub1 ;
                        cout << "\n\t Subject2 of the commerce student = " << csub2 ;
                        cout << "\n\t Subject3 of the commerce student = " << csub3 ;
                }
};

int main()
{
                arts a ;
                cout << "\n Entering details of the arts student\n" ;
                a.Enter_data( );
                cout << "\n Displaying the details of the arts student\n" ;
                a.Display_data( );
                science s ;
                cout << "\n\n Entering details of the science student\n" ;
                s.Enter_data( );
                cout << "\n Displaying the details of the science student\n" ;
                s.Display_data( );
                commerce c ;
                cout << "\n\n Entering details of the commerce student\n" ;
                c.Enter_data( );
                cout << "\n Displaying the details of the commerce student\n";
                c.Display_data( );
return 0;
}

OUTPUT : :

/*  C++ Program to enter Student details using Hierarchical Inheritance */

 Entering details of the arts student

         Enter the first name: John
         Enter the second name: Max
         Enter the age: 19
         Enter the roll_no: 123
          Enter the subject1 of the arts student: A
          Enter the subject2 of the arts student: B
          Enter the subject3 of the arts student: C

 Displaying the details of the arts student

         First Name = John
         Last Name = Max
         Age = 19
         Roll Number = 123
         Subject1 of the arts student = A
         Subject2 of the arts student = B
         Subject3 of the arts student = C

 Entering details of the science student

         Enter the first name: Codez
         Enter the second name: Club
         Enter the age: 20
         Enter the roll_no: 211
         Enter the subject1 of the science student: E
         Enter the subject2 of the science student: F
         Enter the subject3 of the science student: G

 Displaying the details of the science student

         First Name = Codez
         Last Name = Club
         Age = 20
         Roll Number = 211
         Subject1 of the science student = E
         Subject2 of the science student = F
         Subject3 of the science student = G

 Entering details of the commerce student

         Enter the first name: Sam
         Enter the second name: Payne
         Enter the age: 21
         Enter the roll_no: 234
         Enter the subject1 of the commerce student: H
         Enter the subject2 of the commerce student: I
         Enter the subject3 of the commerce student: J

 Displaying the details of the commerce student

         First Name = Sam
         Last Name = Payne
         Age = 21
         Roll Number = 234
         Subject1 of the commerce student = H
         Subject2 of the commerce student = I
         Subject3 of the commerce student = J

Process returned 0

Above is the source code and output for C++ Program to enter Student details using Hierarchical Inheritance which is successfully compiled and run on Windows System to produce desired output.