What will be the output of the following program?

  #include
  class Point
  {   
      int x, y;   
      public:    
      Point(int xx = 10, int yy = 20)    
      {        
          x = xx;      
          y = yy;   
      }
      Point operator + (Point objPoint)    
      {      
         Point objTmp;   
         objTmp.x = objPoint.x + this->x;          
         objTmp.y = objPoint.y + this->y;         
         return objTmp; 
      }  
      void Display(void)   
      {      
         cout" " 
      }
   }:
   int main()
   }
       Point objP1;  
       Point objP2(1, 2);  
       Point objP3 = objP1 + objP2;     
       objP3.Display(); 
       return 0; 
  }