OOPS in C++

 #include <iostream>

using namespace std;

class student

{

    private:

    int a,b,c;

    

    public:

    int d,e;

    

    void disdata()

    {

        cout<<"first num is "<<a<<endl;

        cout<<"second num is "<<b<<endl;

        cout<<"third num is "<<c<<endl;

        cout<<"fourth num is "<<d<<endl;

        cout<<"fifth num is "<<e<<endl;

    }

    void setdata(int a,int b,int c);

};

void student:: setdata(int a1, int b1, int c1)

{

    a=a1;

    b=b1;

    c=c1;

}

int main() {

student peeyush;

peeyush.setdata(5,6,7);

peeyush.d=8;

peeyush.e=9;

peeyush.disdata();

return 0;

}