Program to enter Student details using Hierarchical Inheritance
In this, we are going to see how to Enter and display details of students using Hierarchical Inheritance in C++ Programming Language.
 


The Code given below can be used in TURBO C++ Compilers: -

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

const int len = 50;

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 last 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 Full Name = " << F_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;
    }
};

void main()
{
    clrscr();
    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();

    getch();
}

//.............Coded by RISHAB NAIR

The Code given below can be used in gcc/g++ Compilers: -

#include <iostream>
using namespace std;

const int len = 50;

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 last 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 Full Name = " << F_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;
}

//.............Coded by RISHAB NAIR

#ENJOY CODING

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