PROGRAM
TO IMPLEMENT VIRTUAL BASE CLASS.
#include<iostream.h>
#include<conio.h>
class student
{
protected: int rollno;
public: void get_no();
void put_no();
};
void student::get_no()
{
cout<<"\n enter the roll no :";
cin>>rollno;
}
void student::put_no()
{
cout<<"\n roll no is :"<<rollno;
}
class test :virtual public
student
{
protected: float sub1,sub2;
public: void get_marks();
void put_marks();
};
void test:: get_marks()
{
cout<<"\n enter the marks in two
subjects :";
cin>>sub1>>sub2;
};
void test:: put_marks()
{
cout<<"\n marks in sub1 :"<<sub1;
cout<<"\n marks in sub2 :"<<sub2;
}
class sports:public virtual
student
{
protected: float score;
public: void get_score()
{
cout<<"\n enter the score :";
cin>>score;
}
void put_score()
{
cout<<"\n sports score
:"<<score;
}
};
class result: public
test,public sports
{
float total;
public: void display();
};
void result:: display()
{
total=sub1+sub2+score;
put_no();
put_marks();
put_score();
cout<<"\n total=
"<<total;
}
void main()
{
clrscr();
result student1;
student1.get_no();
student1.get_marks();
student1.get_score();
student1.display();
getch();
}
OUTPUT:-
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