C++ program declaring class & object

#include<iostream.h>
#include<conio.h>
#include<iomanip.h>
class Student{
private:
char a[5][10];
int r[5], c[5], f[5], i;
public:
void input();
void display();
};
void Student::input(){
cout<<"Enter Name, Class, Roll Number & Fee of five students"<<endl;
for(i=0; i<5; i++){
cout<<(i+1)<<". Student:"<<endl;
cin>>a[i]>>c[i]>>r[i]>>f[i];
}
}
void Student::display(){
cout<<"Name"<<setw(25)<<"Class"<<setw(25)<<"Roll Number"<<setw(25)<<"Fee"<<endl;
for(i=0; i<5; i++){
cout<<a[i]<<setw(25)<<c[i]<<setw(25)<<r[i]<<setw(25)<<f[i]<<endl;
}
}
void main(){
Student obj;
clrscr();
obj.input();
obj.display();
getch();
}