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!
Static Data Members:
A data member inside the class can construct as static data member. There are few
guidelines to be followed when declaring static data member.
The following program will give clear difference between static data count and regular data number members. The static data is common to all objects but regular data is unique to its object.
class item
{int number; static int count; public:
void getdata()
{++count;
number=count;
}
void putdata(void)
{cout<<"Count is "< cout<<"Number is "< } }; int item::count=0; int main() { clrscr(); item x,y,z; //Three object produced from class item x.getdata(); y.getdata(); z.getdata(); x.putdata(); The count is 3 and number is 1 y.putdata(); The count is 3 and number is 2 z.putdata(); The count is 3 and number is 3 return 0; } Static Member Function: The static member function can be specified like static data member. It works asc a static member data except the static member data is used in static member function. Rules of Static Member function are given below: The static member function can read static data member only from its class. The static member function is called using class name not object name. class_name::static_function_name( ); It can also be called using object.static_fun( ). The given program will illustrate how the static member function is worked. class find {static int count; int code; public: static void showcount(void) {cout<<"Count is " < } void setcode(void) {code = ++count; } void setcount(void) { cout<<"Code is " < } }; int find ::count=0; int main() {clrscr(); find x,y,z; x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2 z.setcode(); //Code and count is 3 find::showcount(); //Count is 3 x.setcount(); // Code is 1 for object x. y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z. x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6 //The value of code will increase from its previous value of that object. x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x. return 0; } Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
cout<<"Number is "< } }; int item::count=0; int main() { clrscr(); item x,y,z; //Three object produced from class item x.getdata(); y.getdata(); z.getdata(); x.putdata(); The count is 3 and number is 1 y.putdata(); The count is 3 and number is 2 z.putdata(); The count is 3 and number is 3 return 0; } Static Member Function: The static member function can be specified like static data member. It works asc a static member data except the static member data is used in static member function. Rules of Static Member function are given below: The static member function can read static data member only from its class. The static member function is called using class name not object name. class_name::static_function_name( ); It can also be called using object.static_fun( ). The given program will illustrate how the static member function is worked. class find {static int count; int code; public: static void showcount(void) {cout<<"Count is " < } void setcode(void) {code = ++count; } void setcount(void) { cout<<"Code is " < } }; int find ::count=0; int main() {clrscr(); find x,y,z; x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2 z.setcode(); //Code and count is 3 find::showcount(); //Count is 3 x.setcount(); // Code is 1 for object x. y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z. x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6 //The value of code will increase from its previous value of that object. x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x. return 0; } Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
};
int item::count=0;
int main()
{ clrscr();
item x,y,z; //Three object produced from class item x.getdata();
y.getdata();
z.getdata();
x.putdata(); The count is 3 and number is 1
y.putdata(); The count is 3 and number is 2 z.putdata(); The count is 3 and number is 3
return 0;
Static Member Function:
The static member function can be specified like static data member. It works asc a static member data except the static member data is used in static member function.
Rules of Static Member function are given below:
The given program will illustrate how the static member function is worked.
class find
{static int count;
int code;
public:
static void showcount(void)
{cout<<"Count is " < } void setcode(void) {code = ++count; } void setcount(void) { cout<<"Code is " < } }; int find ::count=0; int main() {clrscr(); find x,y,z; x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2 z.setcode(); //Code and count is 3 find::showcount(); //Count is 3 x.setcount(); // Code is 1 for object x. y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z. x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6 //The value of code will increase from its previous value of that object. x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x. return 0; } Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
void setcode(void)
{code = ++count;
void setcount(void)
{ cout<<"Code is " < } }; int find ::count=0; int main() {clrscr(); find x,y,z; x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2 z.setcode(); //Code and count is 3 find::showcount(); //Count is 3 x.setcount(); // Code is 1 for object x. y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z. x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6 //The value of code will increase from its previous value of that object. x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x. return 0; } Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
} }; int find ::count=0; int main() {clrscr(); find x,y,z; x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2 z.setcode(); //Code and count is 3 find::showcount(); //Count is 3 x.setcount(); // Code is 1 for object x. y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z. x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6 //The value of code will increase from its previous value of that object. x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x. return 0; } Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
int find ::count=0;
{clrscr();
find x,y,z;
x.setcode(); // Code and count is 1. y.setcode(); //Code and count is 2 find::showcount(); //Count is 2
z.setcode(); //Code and count is 3 find::showcount(); //Count is 3
x.setcount(); // Code is 1 for object x.
y.setcount(); // Code is 2 for object y. z.setcount(); // Code is 3 for object z.
x.setcode(); // Code and count is 4. y.setcode(); //Code and count is 5 z.setcode(); //Code and count is 6 find::showcount(); //Count is 6
//The value of code will increase from its previous value of that object.
x.setcount(); // Code is 4 for object x. y.setcount(); / Code is 5 for object x. z.setcount(); // Code is 6 for object x.
Since the count is declared as static it has only one copy irrespective of number of objects created. When static count function called again and again it will increase count for all the objects created simultaneously therefore the count will be uniform for all object, but for the data member code it is unique for each object created because it is not a static data member. Therfore from the above example there will only one value for count data member irrespective of number of objects constructed since it is a static data member, where as for code data member the value will be different for each object.
c progam for decode the code
Project Description: We are seeking online invoice OCR solution. That will help us to automate accounts payable function. User should be able to use the offered pdf file or s
Develop a C++ program that uses a while to determine the gross pay (in Dollars) for each of several employees. The company pays “straight-time” for the first 40 hours worked by ea
Introduction. In this assignment you are required to simulate a maze traversal using so called recursive backtracking (the algorithm is given below). The grid of #s and 0s in the f
History?
Write a function that has a single int parameter n and returns an int: 0 if n is negative, otherwise 1. You are not allowed to simply check the integer value, and should use the fu
Destructor: The purpose of destructor is to free the memory when the compiler memory is reduced or not enough to execute certain program. Sometimes there may several objects op
c program for pepple merchant
Arguments Passing Mechanism C++ supports the following argument passing mechanisms: i). Pass by value: A copy of the arguments value is made and passed to the called functio
Exceptions. Your SVector class should throw four exceptions: 3.1. If the constructor size is invalid, then it will just allow the implicit STL bad_alloc exception to pass up to mai
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