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();
}
There are so many different concepts related with OOP (Object-oriented programming) such as: Class Object Inheritance Polymorphism Abstraction Encapsulation
program that generate university statistical bar graph using 3d function
Compiler Design - Limit In The Method Instructions
i didnt no how to write and how to implement and the programming can be done in C and execution should be done in UNIX
A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome
#questio A charitable organization wants to design a special ATM machine to be used by needy people. The association supplies the needy person with a pin number to be able to use
Logical Operators We say any expression that evaluates to zero is a FALSE logic condition and that evaluating to non-zero value is a TRUE condition. Logical operators are usefu
Develop Online Slot Video Game for Facebook Prepare an online slot video game for a Facebook promotion in order to draw new visits and Increase the number of "likes" of the Face
I need Cryengine Sandbox Speedometer and Tachometer We want to get working Tachometer and Speedometer for a car in latest Cryengine Sandbox. You will find how to make it usin
Byteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colour. Nec
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