C++ Code Review: shows how virtual base class solves duplicate properties problem.

Description: This program shows how virtual base class solves duplicate properties problem.

Code:

//Compiling Tool: Code::Block IDE with MinGW

//Program shows how virtual base class solves duplicate properties problem.

 

#include<iostream>

 

using namespace std;

 

class student

{

protected:

    int roll_no;

public:

    void get_no(int x)

    {

        roll_no=x;

    }

 

    void put_no()

    {

        cout<<"\nRoll Number:"<<roll_no;

    }

};

 

class test: virtual public student

{

protected:

    float sub_marks;

 

public:

    void get_submarks(float y)

    {

        sub_marks=y;

    }

 

    void put_submarks()

    {

        cout<<"\nSubject Marks:"<<sub_marks;

    }

};

 

class sports: public virtual student

{

protected:

    float sp_marks;

public:

    void get_spmarks(float z)

    {

        sp_marks=z;

    }

 

    void put_spmarks()

    {

        cout<<"\nSports Marks:"<<sp_marks;

    }

};

 

class result: public test, public sports

{

    float total_marks;

public:

    void put_result()

    {

        total_marks=sub_marks+sp_marks;

        put_no();

        put_submarks();

        put_spmarks();

        cout<<"\nTotal Marks: "<<total_marks;

    }

};

 

int main()

{

    result R;

    R.get_no(20);

    R.get_submarks(75.6);

    R.get_spmarks(81.2);

    R.put_result();

    return 0;

}                

 

Output:

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