#include<iostream.h>
#include<conio.h>
class integer
{
int n1;
public:
void accept();
void operator --();
};
void integer::accept
{
cout<<"\n Enter N1 : ";
cin>>n1;
}
void integer::operator --()
{
n1++;
cout<<"\n N1 : "<
}
void main()
{
integer a;
clrscr();
a.accept();
cout<<"\n Unary pre increment : ";
--a;
cout<<"\n Unary post increment : ";
a--;
getch();
}