employee history details in c++

//rocord of 10 employees
#include<iostream.h>
#include<stdio.h>
#include<conio.h>

class employee
{
private:
char name[40];
char address[40];
char designation[40];
int salary;
static int a;
public:

void getdata()
{
cout<<"enter name  "<<endl;
gets(name);
cout<<"enter address  "<<endl;
gets(address);
cout<<"enter designation  "<<endl;
gets(designation);
cout<<"enter salary  "<<endl;
cin>>salary;
}

void displaydata()
{
cout<<"/nname is   "<<name<<endl;
cout<<"address is   "<<address<<endl;
cout<<"designation is   "<<designation<<endl;
cout<<"salary is   "<<salary<<endl;
}

employee()
{
a++;
}

int inc()
{
return a;
}

};

int employee::a=0;
void main()
{

employee b1;
cout<<"enter details of employee "<<b1.inc()<<endl<<endl;
b1.getdata();
cout<<"details of employee "<<b1.inc()<<endl<<endl;
b1.displaydata();


employee b2;
cout<<"enter details of employee "<<b2.inc()<<endl<<endl;
b2.getdata();
cout<<"details of employee "<<b2.inc()<<endl<<endl;
b2.displaydata();


employee b3;
cout<<"enter details of employee "<<b3.inc()<<endl<<endl;
b3.getdata();
cout<<"details of employee "<<b3.inc()<<endl<<endl;
b3.displaydata();

 //if we declare objects at a single step then the employee
 //no remain same that is in this case will be 3



getch();
}