this pointer in C++ programming

this pointer in C++ programming

C++ uses a unique keyword called this to represent an object that invokes member function. this is a pointer that points to the object for which this function was called.


// C++ program on this pointer.

#include <iostream>  
using namespace std;  
class Employe 
{  
   public:  
       int id;       
       string name; 
       float salary;  
       Employe(int id, string name, float salary)    
        {    
             this->id = id;    
            this->name = name;    
            this->salary = salary;   
        }    
       void display()    
        {    
            cout<<id<<"  "<<name<<"  "<<salary<<endl;    
        }    
};  

int main() 
{  
    Employe a1 =Employe(11, "Rakesh", 120000);   //creating an object of Employee   
    Employe a2=Employe(12, "Bunty", 65000);      //creating an object of Employee  
    a1.display();    
    a2.display();    
    return 0;  

}  

OUTPUT:

11  Rakesh  120000

12  Bunty  65000