Answer to Question #189171 in C++ for Ali

Question

Q1:

Write a Program in C++ which completes following requirements:

a. Create a class, having a static function printing some information 

and invoke that method using scope resolution operator.

b. Try to access non-static data members from static method and 

write in comments what happens.

c. Declare and initialize a static variable as counter in a function

(increment it in every call) and call it multiple times printing the 

change in value

d. Write about your observations while making this assignment in a 

word file about static variables and static methods.

Answer 1

 // According to the results of the study, it can be seen that static functions can only work with static members.
 
#include <iostream>
 
using namespace std;
 
class Class
{
public:
	Class();
	static void Print();
private:
	int nonStatic;
	static int count;
};
 
int Class::count = 0;
 
Class::Class()
{
	nonStatic = 15;
	count++;
	Print();
}
 
void Class::Print()
{
	// cout << "Non static member: " << nonStatic << endl;		// ERROR: Non statiс member
	cout << "Static member: " << count << endl;
}
 
int main()
{
	for (int i = 0; i < 10; i++)
	{
		Class* ptr = new Class;
	}
	system("pause");
	return 0;
}