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();
}
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
Multilevel Inheritance In multilevel inheritance there is a parent class , from whom we derive another class . now from this derived class we can derive another class and so on
Aim: To implement a program to create, update & display account & admin record of person using display account & admin records of person using virtual base class.. Code:
Question: (a) (i) What is recursion? (ii) What advantage is there in its use? (iii) What disadvantage is there in its use? (b) The factorial of a positive number can b
Ask question #Minimum 100 words pted#acce
.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.
write a c progrm to find area under the cuve y=f(x) #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; in
Your task in this project is to write a C program named layout.c which does text layout. This is a staged project, complete the stages in order. The maximum mark if you nish each
wap to read an employee salary and calculate DA,HRA,pf,GROSS,NET conditions:- BASIC DA HRA PF >10000 7% 9% 10% & >20000 9% 11% 15% &
#include #include #include #include #include class Employee { private: char *Name; //Set them as pointers... int IdNumber; char *Department; char *Position; public: voi
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