In this program, we have a class MyClass which has a static data member m_InstanceCount to keep track of the number of instances of this class that have been created. The constructor and destructor of MyClass both increment and decrement this static member, respectively.
We also have a static member function getInstanceCount which returns the value of m_InstanceCount.
In the main function, we create three instances of MyClass and then use the getInstanceCount function to get the total number of instances created. Finally, we print the result using qDebug.
When you run this program, you should see the output "Number of instances created: 3" printed to the console. This demonstrates the correct use of static data members and static member functions in a class.