W.A.P to maintain the record of student using class & object

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

class student {

  private:

            int rno,m1,m2,m3,total;

            float avg;

            char nm[20];

  public:

            void input()  {

              cout<<"\nEnter the Name of the Student ...   :";

              cin>>nm;

              cout<<"Enter the Roll No...  : =               ";

              cin>>rno;

              cout<<"Enter the marks of three Subjects  : ";

              cin>>m1>>m2>>m3;

             }

              void process() {

                        total= m1+m2+m3;

                        avg= total/3.0;

               }

            void output() {

              cout<<"\n\n\t\tThe Name of the Student  "<<nm;

              cout<<"\n\n\t\tThe Roll No of the Student  "<<rno;

              cout<<"\n\n\t\tTotal marks of the Student "<<total;

              cout.precision(2);

              cout<<"\n\n\t\tTotal Average of the Student "<<avg;

            }

 };

 void main() {

   student s1;

   clrscr();

   s1.input();

   s1.process();

   s1.output();

   getch();

  }

OUTPUT:-

Enter the Name of the Student ...   :R GABA

Enter the Roll No...  :=               30

Enter the marks of three Subjects  : 90

90

80

                The Name of the Student  R GABA

                The Roll No of the Student  30

                Total marks of the Student 260

                Total Average of the Student 86.67