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 Member Functions
All the objects of the class share static data members of a class. The example above demonstrates how to keep track of all the objects of a class which area in existence. Though, this function uses existing objects to invoke a member function getcount(), which returns the value of the static data member. What if the programme does not require to use objects to invoke this function and still the programme would like to know how many objects have been created? If there is no object how the member function is invoked? Further, as can be seen from the last output, the number of objects (count) remains similar at a given instance no matter which object is used to invoke the member function. In fact, the use of existing objects, like in the above instance, is not an effective way to access the value of the static data member. A specific object should not be used to refer to this member, as it does not belong to that object; it belongs to the whole class. C++ gives a facility to define static function members, for the similar. That is, to invoke such a function, an object is not needed. It can be invoked with the name of the class. The programme given below illustrates its use.
class counter
{
public :
counter ();
static int getcount();
private:
static int count;
};
counter::counter ()
count++;
}
int counter::getcount()
int counter :: count = 0; // INITIALIZATION OF
STATIC MEMBER.
void main()
counter c1,c2;
cout << " Count = " << counter :: getcount() << endl;
counter c3;
counter c4,c5;
Output:
Count = 2
Count = 3
Count = 5
find wether specific word is inside a pool of word and what is the direction e.g. north
Define Bit Fields Bit Fields permits the packing of data in a structure. This is particularly useful when memory or data storage is at a premium. Usual examples: Packing
Write a program that displays the following temperature conversion chart on the screen as follows below. Hint: c = 5.0/9.0 * (f - 2) C = degrees in Celsius F = degree in F
Syntax rules for writing constructor functions Its name must be similar as that of the class to which it belongs. It is declared with no return type (not even void). Ho
Your program will read two kinds of data from two files: names and predicates. It will read a formal expression from standard input and check whether that expression is syntactical
A: In C++, the definition of NULL is 0, thus there is only an aesthetic difference. I prefer to ignore macros, so I employ 0. Another difficulty with NULL is that people sometimes
Problem 1. Explain Break and continue statements in C++. Explanation of Break statement Explanation of Continue statement 2. Explain concepts of constructors and
List any six commonly found programming errors in a C program Six commonly found errors in a C program are: 1. Missing or misplaced ; or }, missing return type for a proc
defining software crisis As the technology changes rapidly the requirement for the users' change, to part the growing demand of the user for trade, business, and personal
i need expression and its types with example programs in c++
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