Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Pointers to Objects
Passing and returning of objects is, though, not very efficient since it includes passing and returning a copy of the data members. This problem can be eliminated using pointers. Like other variables, objects of class can also have pointers. Declaring a pointer to an object of a certain class is same as declaring a pointer to a variable of any other data type. A pointer variable having the address of an object is said to be pointing to that object. Pointers to objects can be used to make a call by address or for dynamic memory allocation. Just like structure pointer, a pointer to an object also uses the arrow operator to access its members. Like pointers to other data types, a pointer to an object also has only one word of memory. It has to be made to point to an already existing object or allocated memory using the keyword 'new'.
e.g.
string str; // Object
string *sp; // Pointer to an object
sp = &str; // Assigns address of an existing object
sp = new string // Allocates memory with new.
A simple example of using pointers to objects is given below.
class player
{
public :
void getstats(void);
void showstats(void);
private :
char name[40];
int age;
int runs;
int tests;
float average;
float calcaverage(void);
};
void main()
player Sachin;
Sachin.getstats();
Sachin.showstats();
player *Dravid;
Dravid = new player;
Dravid->getstats();
Dravid->showstats();
}
write a program that would accept the radius of the sphere and return its surface area.
There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing that
Need Payment Gateway Integration Expert Project Description: I am seeking for expert payment gateway integration. You must have done or have experience with integrating me
Encapsulation and Data Hiding The property of being a self-contained unit is known as encapsulation. The idea that the encapsulated unit can be used without knowing how it work
write c++ programm calculate electricity bill with person name,use ,id
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b
C program to demonstrate Pointer to variable: void p2a(int *); void main() { int x=10, *a,**b; int arr[5]; //poin
minimum shelf
The purpose of this assignment is to familiarize you with the notion of encapsulation as well as some aspects of IP and ICMP. Write your programs in C or C++. They will be grade
where to use tower of honoi?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd